perf-sentinel-core 0.8.13

Core library for perf-sentinel: polyglot performance anti-pattern detector
Documentation 
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<!DOCTYPE html>
<html lang="en" data-theme="">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta http-equiv="Content-Security-Policy" content="{{CONTENT_SECURITY_POLICY}}" />
<title>{{PAGE_TITLE}}</title>
<style>
  :root[data-theme="dark"] {
    --color-background-primary: #1a1a1a;
    --color-background-secondary: #2c2c2c;
    --color-background-tertiary: #383838;
    --color-background-info: #18324d;
    --color-background-danger: #3d1f1f;
    --color-background-warning: #3d2f1f;
    --color-background-success: #1f3d2f;
    --color-text-primary: #e8e8e8;
    --color-text-secondary: #b4b4b4;
    --color-text-tertiary: #8c8c8c;
    --color-text-info: #6babff;
    --color-text-danger: #ff7a7a;
    --color-text-warning: #f0b05f;
    --color-text-success: #5fd495;
    --color-border-tertiary: rgba(255,255,255,0.18);
    --color-border-secondary: rgba(255,255,255,0.3);
    --color-border-info: #378add;
    --color-border-success: #3d7d5c;
    --page-bg: #121212;
  }
  :root[data-theme="light"] {
    --color-background-primary: #ffffff;
    --color-background-secondary: #f5f5f5;
    --color-background-tertiary: #ececec;
    --color-background-info: #e6f1fb;
    --color-background-danger: #fcebeb;
    --color-background-warning: #faeeda;
    --color-background-success: #eaf3de;
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #555555;
    --color-text-tertiary: #888888;
    --color-text-info: #0c447c;
    --color-text-danger: #791f1f;
    --color-text-warning: #633806;
    --color-text-success: #27500a;
    --color-border-tertiary: rgba(0,0,0,0.1);
    --color-border-secondary: rgba(0,0,0,0.2);
    --color-border-info: #378add;
    --color-border-success: #7ab85a;
    --page-bg: #fafafa;
  }
  :root {
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, Monaco, monospace;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
  }
  * { box-sizing: border-box; }
  body { margin: 0; padding: 24px; background: var(--page-bg); color: var(--color-text-primary); font-family: var(--font-sans); font-size: 13px; line-height: 1.5; }
  .ps-container { max-width: 1100px; margin: 0 auto; }
  .ps-header-ctrl { display: flex; justify-content: flex-end; align-items: center; margin-bottom: 10px; font-size: 11px; color: var(--color-text-tertiary); }
  .ps-theme-toggle { background: transparent; border: 0.5px solid var(--color-border-tertiary); color: var(--color-text-secondary); padding: 4px 10px; border-radius: var(--border-radius-md); cursor: pointer; font-size: 11px; font-family: inherit; }
  .ps-theme-toggle:hover { border-color: var(--color-border-secondary); }
  .ps-topbar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); background: var(--color-background-secondary); margin-bottom: 12px; flex-wrap: wrap; }
  .ps-brand { display: inline-flex; align-items: center; text-decoration: none; }
  .ps-logo { display: inline-flex; }
  .ps-logo svg { height: 65px; width: auto; display: block; }
  /* Theme-swapped wordmark: light variant by default (and when light),
     light-colored variant on dark. data-theme is always resolved to a
     concrete light/dark by applyTheme. */
  .ps-logo-dark { display: none; }
  :root[data-theme="dark"] .ps-logo-light { display: none; }
  :root[data-theme="dark"] .ps-logo-dark { display: inline-flex; }
  .ps-meta { color: var(--color-text-secondary); font-size: 12px; font-family: var(--font-mono); }
  .ps-gate-pass { margin-left: auto; background: var(--color-background-success); color: var(--color-text-success); padding: 3px 10px; border-radius: var(--border-radius-md); font-size: 11px; font-weight: 500; }
  .ps-gate-fail { margin-left: auto; background: var(--color-background-danger); color: var(--color-text-danger); padding: 3px 10px; border-radius: var(--border-radius-md); font-size: 11px; font-weight: 500; }
  .ps-tabs { display: flex; gap: 2px; border-bottom: 0.5px solid var(--color-border-tertiary); margin-bottom: 14px; }
  .ps-tab { padding: 8px 14px; font-size: 13px; cursor: pointer; border: none; background: transparent; color: var(--color-text-secondary); border-bottom: 2px solid transparent; margin-bottom: -0.5px; font-family: inherit; }
  .ps-tab:hover { color: var(--color-text-primary); }
  .ps-tab.active { color: var(--color-text-primary); border-bottom-color: var(--color-text-primary); font-weight: 500; }
  .ps-tab .ps-badge { display: inline-block; margin-left: 6px; padding: 1px 7px; border-radius: 10px; font-size: 10px; background: var(--color-background-tertiary); color: var(--color-text-secondary); }
  .ps-metrics { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; margin-bottom: 14px; }
  .ps-metrics-3 { grid-template-columns: repeat(3, 1fr); }
  .ps-metric { background: var(--color-background-secondary); border-radius: var(--border-radius-md); padding: 10px 12px; }
  .ps-metric-label { font-size: 11px; color: var(--color-text-secondary); margin-bottom: 4px; }
  .ps-metric-value { font-size: 20px; font-weight: 500; font-family: var(--font-mono); word-break: break-word; }
  .ps-metric-value-sm { font-size: 14px; line-height: 1.4; }
  .ps-metric-sub { font-size: 11px; color: var(--color-text-tertiary); font-family: var(--font-mono); }
  .ps-filters { display: flex; gap: 6px; margin-bottom: 10px; flex-wrap: wrap; align-items: center; }
  .ps-chip-group { display: contents; }
  .ps-chip { padding: 4px 10px; font-size: 11px; border-radius: 12px; border: 0.5px solid var(--color-border-tertiary); background: transparent; cursor: pointer; color: var(--color-text-secondary); font-family: inherit; }
  .ps-chip:hover { background: var(--color-background-secondary); }
  .ps-chip.active { background: var(--color-text-primary); color: var(--color-background-primary); border-color: var(--color-text-primary); }
  .ps-list { display: flex; flex-direction: column; gap: 6px; }
  .ps-row { display: grid; grid-template-columns: 60px 1fr auto; align-items: center; gap: 10px; padding: 10px 12px; border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); cursor: pointer; background: var(--color-background-primary); }
  .ps-row:hover { background: var(--color-background-secondary); border-color: var(--color-border-secondary); }
  .ps-row.selected { border: 2px solid var(--color-border-info); padding: 9px 11px; }
  .ps-sev-crit { background: var(--color-background-danger); color: var(--color-text-danger); font-size: 10px; font-weight: 500; padding: 3px 8px; border-radius: var(--border-radius-md); text-align: center; }
  .ps-sev-warn { background: var(--color-background-warning); color: var(--color-text-warning); font-size: 10px; font-weight: 500; padding: 3px 8px; border-radius: var(--border-radius-md); text-align: center; }
  .ps-sev-info { background: var(--color-background-info); color: var(--color-text-info); font-size: 10px; font-weight: 500; padding: 3px 8px; border-radius: var(--border-radius-md); text-align: center; }
  .ps-badge-estimated { display: inline-block; background: var(--color-background-warning); color: var(--color-text-warning); padding: 3px 8px; border-radius: var(--border-radius-md); font-size: 10px; font-weight: 500; }
  .ps-badge-measured { display: inline-block; background: var(--color-background-success); color: var(--color-text-success); padding: 3px 8px; border-radius: var(--border-radius-md); font-size: 10px; font-weight: 500; }
  .ps-scoring-bandeau { display: flex; align-items: center; gap: 8px; margin-top: 14px; margin-bottom: 8px; font-size: 12px; flex-wrap: wrap; }
  .ps-scoring-label { color: var(--color-text-secondary); font-weight: 500; }
  .ps-scoring-chip { display: inline-block; padding: 3px 10px; border-radius: 12px; font-size: 11px; font-weight: 500; white-space: nowrap; }
  .ps-scoring-chip-neutral { background: var(--color-background-secondary); color: var(--color-text-secondary); }
  .ps-scoring-chip-warning { background: var(--color-background-warning); color: var(--color-text-warning); }
  .ps-scoring-chip-accent { background: var(--color-background-secondary); color: var(--color-text-info); }
  .ps-fin-main { min-width: 0; }
  .ps-fin-type { font-weight: 500; font-size: 13px; margin-bottom: 2px; }
  .ps-fin-service { color: var(--color-text-tertiary); font-weight: 400; font-size: 11px; }
  .ps-fin-detail { font-size: 11px; color: var(--color-text-secondary); font-family: var(--font-mono); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .ps-fin-right { font-size: 11px; color: var(--color-text-secondary); font-family: var(--font-mono); text-align: right; white-space: nowrap; }
  .ps-fin-right-sub { color: var(--color-text-tertiary); }
  .ps-tree-header { font-size: 11px; color: var(--color-text-secondary); margin-bottom: 12px; padding: 8px 12px; background: var(--color-background-tertiary); border-radius: var(--border-radius-md); font-family: var(--font-mono); word-break: break-all; }
  .ps-tree { font-family: var(--font-mono); font-size: 12px; padding: 10px 12px; background: var(--color-background-secondary); border-radius: var(--border-radius-md); line-height: 1.9; }
  .ps-span { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 2px 4px; border-radius: 4px; }
  .ps-span.dim { color: var(--color-text-tertiary); }
  .ps-span.hilite { background: var(--color-background-danger); }
  .ps-span-text { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .ps-span-dur { color: var(--color-text-tertiary); white-space: nowrap; }
  .ps-span-find { color: var(--color-text-danger); font-weight: 500; }
  .ps-drill { background: var(--color-background-info); border: 0.5px solid var(--color-border-info); border-radius: var(--border-radius-md); padding: 10px 12px; margin-top: 10px; margin-bottom: 12px; font-size: 12px; color: var(--color-text-info); }
  .ps-drill-label { font-size: 10px; color: var(--color-text-info); margin-bottom: 4px; opacity: 0.8; }
  .ps-drill-link { color: var(--color-text-info); }
  .ps-banner { background: var(--color-background-info); border: 0.5px solid var(--color-border-info); border-radius: var(--border-radius-md); padding: 8px 12px; margin-bottom: 10px; font-size: 11px; color: var(--color-text-info); }
  .ps-empty { padding: 30px; text-align: center; color: var(--color-text-secondary); font-size: 13px; background: var(--color-background-secondary); border-radius: var(--border-radius-md); }
  .ps-table { width: 100%; font-size: 11px; font-family: var(--font-mono); border-collapse: collapse; }
  .ps-table th { text-align: left; font-weight: 500; padding: 6px 8px; border-bottom: 0.5px solid var(--color-border-tertiary); color: var(--color-text-secondary); font-size: 10px; font-family: var(--font-sans); }
  .ps-table td { padding: 6px 8px; border-bottom: 0.5px solid var(--color-border-tertiary); vertical-align: top; }
  /* Highlight row on Explain -> pg_stat cross-nav. Scoped to the
     pg_stat table so other .ps-table instances (diff, green regions)
     stay unaffected if they ever adopt a .hilite class for another
     purpose. */
  #pgstat-body tr.hilite { background: var(--color-background-danger); }
  #pgstat-body tr.hilite td:first-child { color: var(--color-text-danger); font-weight: 500; }
  .ps-footer { margin-top: 14px; font-size: 11px; color: var(--color-text-tertiary); text-align: center; }
  .ps-credit { margin-top: 8px; font-size: 11px; color: var(--color-text-tertiary); text-align: center; }
  .ps-credit a { color: var(--color-text-success); text-decoration: underline; }
  .ps-credit a:hover { color: var(--color-text-primary); }
  .ps-kbd { font-family: var(--font-mono); font-size: 10px; background: var(--color-background-tertiary); padding: 1px 5px; border-radius: 3px; color: var(--color-text-secondary); }
  .ps-search { display: none; width: 100%; padding: 6px 10px; margin-bottom: 10px; font-size: 12px; font-family: var(--font-sans); background: var(--color-background-secondary); border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); color: var(--color-text-primary); }
  .ps-search:focus { outline: none; border-color: var(--color-border-info); }
  .ps-span.ps-span-pgstat-link { cursor: pointer; }
  .ps-span.ps-span-pgstat-link:hover .ps-span-text { text-decoration: underline; }
  .ps-drill-clear { color: var(--color-text-info); text-decoration: underline; cursor: pointer; margin-left: 8px; }
  .ps-diff-section { margin-bottom: 18px; }
  .ps-diff-section-header { font-size: 12px; font-weight: 500; margin-bottom: 8px; color: var(--color-text-primary); }
  .ps-diff-section-header.red { color: var(--color-text-danger); }
  .ps-diff-section-header.green { color: var(--color-text-success); }
  .ps-quality-gate { margin: 12px 0 18px 0; }
  .ps-section-title { font-size: 12px; font-weight: 500; margin: 0 0 8px 0; color: var(--color-text-primary); }
  .ps-panel-toolbar { display: flex; justify-content: flex-end; margin-bottom: 8px; }
  .ps-export-btn { padding: 4px 10px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-info); background: transparent; cursor: pointer; color: var(--color-text-info); font-family: inherit; }
  .ps-export-btn:hover { background: var(--color-background-info); }
  .ps-copy-link-btn { padding: 4px 10px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-info); background: transparent; cursor: pointer; color: var(--color-text-info); font-family: inherit; margin-left: 6px; }
  .ps-copy-link-btn:hover { background: var(--color-background-info); }
  .ps-correlation-clickable { cursor: pointer; }
  .ps-correlation-clickable:hover { background: var(--color-background-tertiary); }
  .ps-show-more { margin-top: 10px; padding: 6px 12px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-tertiary); background: transparent; color: var(--color-text-secondary); cursor: pointer; font-family: inherit; width: 100%; }
  .ps-show-more:hover { background: var(--color-background-secondary); border-color: var(--color-border-secondary); }
  /* Centered via the modern `inset: 0 + margin: auto` pattern. The
     previous `top/left + transform: translate(-50%, -50%)` recipe
     interacted badly with the user-agent's `dialog:modal` defaults
     (`inset: 0` stays on the unset edges, fighting the explicit
     top/left), drifting the box right of center on wider viewports. */
  /* `max-height` + `overflow-y: auto` keep the Cancel/Submit row in
     view when an operator pastes a tall reason into the ack textarea
     (which is `resize: vertical`). Without the cap, the dialog would
     extend past the viewport and the bottom buttons would land
     off-screen with no internal scroll. */
  dialog.ps-modal { position: fixed; inset: 0; margin: auto; max-width: 520px; width: calc(100% - 40px); height: fit-content; max-height: calc(100vh - 40px); overflow-y: auto; background: var(--color-background-secondary); color: var(--color-text-primary); border-radius: var(--border-radius-lg); border: 0.5px solid var(--color-border-tertiary); padding: 18px 22px; box-shadow: 0 8px 32px rgba(0,0,0,0.4); }
  dialog.ps-modal::backdrop { background: rgba(0,0,0,0.6); }
  dialog.ps-modal h2 { margin: 0 0 12px 0; font-size: 14px; font-weight: 500; }
  .ps-modal-close { position: absolute; top: 8px; right: 10px; background: transparent; border: none; color: var(--color-text-secondary); font-family: inherit; font-size: 16px; cursor: pointer; line-height: 1; padding: 4px 8px; }
  .ps-modal-close:hover { color: var(--color-text-primary); }
  dialog.ps-modal table { width: 100%; border-collapse: collapse; }
  dialog.ps-modal th { text-align: left; padding: 4px 6px; font-size: 10px; font-weight: 500; color: var(--color-text-secondary); border-bottom: 0.5px solid var(--color-border-tertiary); font-family: var(--font-sans); }
  dialog.ps-modal th:first-child { width: 90px; }
  dialog.ps-modal td { padding: 5px 6px; font-size: 12px; vertical-align: top; }
  dialog.ps-modal td:first-child { width: 90px; white-space: nowrap; }

  /* -------- live mode (since 0.5.23) -------- */
  /* Header status badge: hidden by default, revealed in live mode. */
  .ps-daemon-status { display: none; align-items: center; gap: 6px; font-size: 11px; color: var(--color-text-secondary); margin-right: 12px; }
  body.ps-live .ps-daemon-status { display: inline-flex; }
  .ps-daemon-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-text-tertiary); display: inline-block; }
  .ps-daemon-dot.connected { background: #2ea043; }
  .ps-daemon-dot.disconnected { background: #cf222e; }
  .ps-daemon-dot.unauthorized { background: #d4a72c; }
  /* Header refresh button: hidden by default, revealed in live mode.
     `[hidden]` adds attribute specificity over the live-mode class
     reveal, so the HTML `hidden` attribute set by
     `syncLogoutButtonVisibility` for the Forget-key button wins
     regardless of source order. */
  .ps-refresh-btn { display: none; padding: 4px 10px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-tertiary); background: transparent; color: var(--color-text-secondary); cursor: pointer; font-family: inherit; margin-right: 8px; }
  body.ps-live .ps-refresh-btn { display: inline-block; }
  body.ps-live .ps-refresh-btn[hidden] { display: none; }
  .ps-refresh-btn:hover { background: var(--color-background-secondary); border-color: var(--color-border-secondary); color: var(--color-text-primary); }
  .ps-refresh-btn:disabled { cursor: not-allowed; opacity: 0.6; }
  /* Per-row Ack/Revoke action button: hidden by default. */
  .ps-fin-actions { display: none; margin-left: 8px; }
  body.ps-live .ps-fin-actions { display: inline-flex; gap: 6px; }
  .ps-fin-action-btn { padding: 3px 10px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-info); background: transparent; color: var(--color-text-info); cursor: pointer; font-family: inherit; }
  .ps-fin-action-btn:hover { background: var(--color-background-info); }
  .ps-fin-action-btn.revoke { border-color: var(--color-border-tertiary); color: var(--color-text-secondary); }
  .ps-fin-action-btn.revoke:hover { background: var(--color-background-secondary); }
  .ps-fin-action-btn:disabled { cursor: not-allowed; opacity: 0.5; }
  /* Findings filter toggle: hidden by default. The toolbar uses
     `justify-content: flex-end`, so push the toggle further from the
     adjacent Export CSV button via `margin-right` (the toggle sits to
     the LEFT of Export CSV in document order, so the right margin is
     what creates breathing room between them). `cursor: pointer` on
     the wrapping `<label>` extends the click affordance to the text
     gap between the checkbox and its label, not just the input itself. */
  .ps-include-acked-wrap { display: none; align-items: center; gap: 6px; font-size: 11px; color: var(--color-text-secondary); margin-left: 8px; margin-right: 14px; cursor: pointer; }
  body.ps-live .ps-include-acked-wrap { display: inline-flex; }
  /* Acknowledgments panel toolbar (table layout reused from .ps-table). */
  .ps-acks-footer { margin-top: 10px; font-size: 11px; color: var(--color-text-tertiary); }
  /* Modal form layout (auth + ack). */
  dialog.ps-modal label { display: block; font-size: 11px; color: var(--color-text-secondary); margin: 10px 0 4px 0; }
  dialog.ps-modal input[type="password"], dialog.ps-modal input[type="text"], dialog.ps-modal textarea, dialog.ps-modal select { width: 100%; box-sizing: border-box; padding: 6px 8px; font-size: 12px; font-family: inherit; background: var(--color-background-tertiary); border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); color: var(--color-text-primary); }
  dialog.ps-modal textarea { min-height: 60px; resize: vertical; }
  dialog.ps-modal .ps-modal-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 14px; }
  dialog.ps-modal .ps-modal-btn { padding: 5px 14px; font-size: 11px; border-radius: var(--border-radius-md); border: 0.5px solid var(--color-border-tertiary); background: transparent; color: var(--color-text-secondary); cursor: pointer; font-family: inherit; }
  dialog.ps-modal .ps-modal-btn:hover { background: var(--color-background-tertiary); color: var(--color-text-primary); }
  dialog.ps-modal .ps-modal-btn.primary { border-color: var(--color-border-info); color: var(--color-text-info); }
  dialog.ps-modal .ps-modal-btn.primary:hover { background: var(--color-background-info); }
  dialog.ps-modal .ps-modal-error { display: none; margin-top: 10px; padding: 8px 10px; font-size: 11px; background: var(--color-background-danger); color: var(--color-text-danger); border-radius: var(--border-radius-md); }
  /* Toast bar for transient feedback. */
  .ps-toast { position: fixed; bottom: 20px; right: 20px; padding: 10px 16px; font-size: 12px; background: var(--color-background-secondary); color: var(--color-text-primary); border: 0.5px solid var(--color-border-tertiary); border-radius: var(--border-radius-md); box-shadow: 0 4px 16px rgba(0,0,0,0.3); z-index: 9999; max-width: 380px; }
  .ps-toast.error { border-color: var(--color-border-tertiary); background: var(--color-background-danger); color: var(--color-text-danger); }
  .ps-toast.success { border-color: var(--color-border-tertiary); background: var(--color-background-tertiary); color: var(--color-text-primary); }
</style>
</head>
<body>
<div class="ps-container">
  <div class="ps-header-ctrl">
    <output class="ps-daemon-status" id="ps-daemon-status" aria-live="polite">
      <span class="ps-daemon-dot" id="ps-daemon-dot"></span>
      <span id="ps-daemon-status-text">Connecting...</span>
    </output>
    <button class="ps-refresh-btn" id="ps-refresh-btn" type="button" aria-label="Refresh daemon data">Refresh</button>
    <button class="ps-refresh-btn" id="ps-logout-btn" type="button" aria-label="Forget key for this tab (clears the daemon API key from session storage)" hidden>Forget key</button>
    <button class="ps-theme-toggle" id="theme-toggle" type="button">Toggle theme</button>
  </div>

  <div class="ps-topbar" id="topbar"><a class="ps-brand" href="https://github.com/robintra/perf-sentinel" target="_blank" rel="noopener noreferrer" aria-label="perf-sentinel">{{BRAND_LOGO}}</a></div>

  <div class="ps-tabs" id="tabs" role="tablist" aria-label="Dashboard sections"></div>

  <div id="panel-findings" role="tabpanel" aria-labelledby="tab-findings">
    <div class="ps-banner" id="trim-banner" style="display: none;"></div>
    <input type="search" class="ps-search" id="findings-search" placeholder="Filter findings by type, service, endpoint or template..." aria-label="Filter findings" />
    <div class="ps-metrics" id="findings-metrics"></div>
    <div class="ps-quality-gate" id="quality-gate-rules" style="display: none;"></div>
    <div class="ps-filters" id="findings-filters"></div>
    <div class="ps-panel-toolbar">
      <label class="ps-include-acked-wrap" id="findings-include-acked-wrap">
        <input type="checkbox" id="findings-include-acked" />
        <span>Show acknowledged</span>
      </label>
      <button type="button" class="ps-export-btn" id="findings-export" data-export-tab="findings">Export CSV</button>
      <button type="button" class="ps-copy-link-btn" id="findings-copy-link" data-copy-link-tab="findings">Copy link</button>
    </div>
    <div class="ps-list" id="findings-list"></div>
    <button type="button" class="ps-show-more" id="findings-show-more" style="display: none;"></button>
    <div class="ps-empty" id="findings-empty" style="display: none;">No findings in this trace set.</div>
  </div>

  <div id="panel-explain" role="tabpanel" aria-labelledby="tab-explain" style="display: none;">
    <div class="ps-empty" id="explain-empty">Click a finding to view its trace tree here.</div>
    <div id="explain-content" style="display: none;">
      <div class="ps-tree-header" id="explain-breadcrumb"></div>
      <div class="ps-tree" id="explain-tree"></div>
      <div class="ps-drill" id="explain-fix" style="display: none;"></div>
    </div>
    <div class="ps-empty" id="explain-not-embedded" style="display: none;"></div>
  </div>

  <div id="panel-pgstat" role="tabpanel" aria-labelledby="tab-pgstat" style="display: none;">
    <div class="ps-drill" id="pgstat-drill" style="display: none;">
      <div class="ps-drill-label">Filtered from Explain</div>
      <span id="pgstat-drill-text"></span>
      <span class="ps-drill-clear" id="pgstat-drill-clear">clear</span>
    </div>
    <div class="ps-filters" id="pgstat-rankings"></div>
    <input type="search" class="ps-search" id="pgstat-search" placeholder="Filter by SQL template..." aria-label="Filter pg_stat rows" />
    <div class="ps-panel-toolbar">
      <button type="button" class="ps-export-btn" id="pgstat-export" data-export-tab="pgstat">Export CSV</button>
      <button type="button" class="ps-copy-link-btn" id="pgstat-copy-link" data-copy-link-tab="pgstat">Copy link</button>
    </div>
    <table class="ps-table" id="pgstat-table">
      <thead><tr><th>Template</th><th style="width: 80px;">Calls</th><th style="width: 100px;">Total ms</th><th style="width: 90px;">Mean ms</th></tr></thead>
      <tbody id="pgstat-body"></tbody>
    </table>
    <div class="ps-empty" id="pgstat-empty" style="display: none;">No pg_stat entries.</div>
  </div>

  <div id="panel-diff" role="tabpanel" aria-labelledby="tab-diff" style="display: none;">
    <input type="search" class="ps-search" id="diff-search" placeholder="Filter diff findings by type, service, endpoint or template..." aria-label="Filter diff findings" />
    <div class="ps-panel-toolbar">
      <button type="button" class="ps-export-btn" id="diff-export" data-export-tab="diff">Export CSV</button>
      <button type="button" class="ps-copy-link-btn" id="diff-copy-link" data-copy-link-tab="diff">Copy link</button>
    </div>
    <div class="ps-diff-section">
      <div class="ps-diff-section-header red" id="diff-new-header">New findings (0)</div>
      <div class="ps-list" id="diff-new-list"></div>
    </div>
    <div class="ps-diff-section">
      <div class="ps-diff-section-header green" id="diff-resolved-header">Resolved findings (0)</div>
      <div class="ps-list" id="diff-resolved-list"></div>
    </div>
    <div class="ps-diff-section">
      <div class="ps-diff-section-header" id="diff-sev-header">Severity changes (0)</div>
      <table class="ps-table" id="diff-sev-table" style="display: none;">
        <thead><tr><th>Type</th><th>Service</th><th>Endpoint</th><th>Before</th><th>After</th></tr></thead>
        <tbody id="diff-sev-body"></tbody>
      </table>
    </div>
    <div class="ps-diff-section">
      <div class="ps-diff-section-header" id="diff-endp-header">Endpoint metric deltas (0)</div>
      <table class="ps-table" id="diff-endp-table" style="display: none;">
        <thead><tr><th>Service</th><th>Endpoint</th><th>Before I/O</th><th>After I/O</th><th>Delta</th></tr></thead>
        <tbody id="diff-endp-body"></tbody>
      </table>
    </div>
  </div>

  <div id="panel-correlations" role="tabpanel" aria-labelledby="tab-correlations" style="display: none;">
    <input type="search" class="ps-search" id="correlations-search" placeholder="Filter correlations by service or type..." aria-label="Filter correlations" />
    <div class="ps-panel-toolbar">
      <button type="button" class="ps-export-btn" id="correlations-export" data-export-tab="correlations">Export CSV</button>
      <button type="button" class="ps-copy-link-btn" id="correlations-copy-link" data-copy-link-tab="correlations">Copy link</button>
    </div>
    <div class="ps-list" id="correlations-list"></div>
  </div>

  <div id="panel-green" role="tabpanel" aria-labelledby="tab-green" style="display: none;">
    <div class="ps-metrics ps-metrics-3" id="green-metrics"></div>
    <div id="green-scoring-config" class="ps-scoring-bandeau" style="display: none;" aria-label="Carbon scoring configuration"></div>
    <div class="ps-tree-header" id="green-regions-header" style="margin-top: 14px;"></div>
    <table class="ps-table" id="green-regions-table" style="display: none;">
      <thead><tr><th>Region</th><th>Intensity (gCO2/kWh)</th><th>I/O ops</th><th>CO2</th><th>Source</th><th>Estimated</th></tr></thead>
      <tbody id="green-regions-body"></tbody>
    </table>
    <div class="ps-empty" id="green-regions-empty" style="display: none;">No region breakdown available.</div>
  </div>

  <div id="panel-acknowledgments" role="tabpanel" aria-labelledby="tab-acknowledgments" style="display: none;">
    <table class="ps-table" id="acks-table">
      <thead><tr><th>Signature</th><th style="width: 140px;">By</th><th>Reason</th><th style="width: 120px;">Expires</th><th style="width: 90px;"></th></tr></thead>
      <tbody id="acks-body"></tbody>
    </table>
    <div class="ps-empty" id="acks-empty" style="display: none;">No daemon acknowledgments active.</div>
    <div class="ps-acks-footer" id="acks-footer"></div>
  </div>

  <div class="ps-footer">
    <span class="ps-kbd">j</span>/<span class="ps-kbd">k</span> navigate . <span class="ps-kbd">enter</span> open . <span class="ps-kbd">/</span> search . <span class="ps-kbd">esc</span> back . <span class="ps-kbd">?</span> shortcuts
  </div>
  <div class="ps-credit">
    Powered by <a href="https://github.com/robintra/perf-sentinel" target="_blank" rel="noopener noreferrer">perf-sentinel</a>
  </div>
</div>

<dialog id="cheatsheet" class="ps-modal" aria-labelledby="cheatsheet-title">
  <button type="button" class="ps-modal-close" id="cheatsheet-close" aria-label="Close">x</button>
  <h2 id="cheatsheet-title">Keyboard shortcuts</h2>
  <table id="cheatsheet-table">
    <thead><tr><th scope="col">Key</th><th scope="col">Action</th></tr></thead>
    <tbody id="cheatsheet-body"></tbody>
  </table>
</dialog>

<dialog id="auth-modal" class="ps-modal" aria-labelledby="auth-modal-title">
  <button type="button" class="ps-modal-close" id="auth-modal-close" aria-label="Close">x</button>
  <h2 id="auth-modal-title">Daemon authentication required</h2>
  <p id="auth-modal-hint" style="margin: 0 0 8px 0; font-size: 11px; color: var(--color-text-warning);">The daemon rejected the request with 401. Enter the API key to retry. The key is held in browser memory only for this tab session and cleared when the tab closes.</p>
  <form id="auth-modal-form">
    <label for="auth-modal-key">API key</label>
    <input type="password" id="auth-modal-key" autocomplete="off" />
    <div class="ps-modal-error" id="auth-modal-error" role="alert"></div>
    <div class="ps-modal-actions">
      <button type="button" class="ps-modal-btn" id="auth-modal-cancel">Cancel</button>
      <button type="submit" class="ps-modal-btn primary" id="auth-modal-submit">Submit</button>
    </div>
  </form>
</dialog>

<dialog id="ack-modal" class="ps-modal" aria-labelledby="ack-modal-title">
  <button type="button" class="ps-modal-close" id="ack-modal-close" aria-label="Close">x</button>
  <h2 id="ack-modal-title">Acknowledge finding</h2>
  <form id="ack-modal-form">
    <label for="ack-modal-sig">Signature</label>
    <input type="text" id="ack-modal-sig" readonly />
    <label for="ack-modal-reason">Reason</label>
    <textarea id="ack-modal-reason" required></textarea>
    <label for="ack-modal-expires">Expires</label>
    <select id="ack-modal-expires">
      <option value="">Never (permanent)</option>
      <option value="24h">24 hours</option>
      <option value="7d" selected>7 days</option>
      <option value="30d">30 days</option>
    </select>
    <label for="ack-modal-by">Acknowledged by</label>
    <input type="text" id="ack-modal-by" placeholder="optional" />
    <div class="ps-modal-error" id="ack-modal-error" role="alert"></div>
    <div class="ps-modal-actions">
      <button type="button" class="ps-modal-btn" id="ack-modal-cancel">Cancel</button>
      <button type="submit" class="ps-modal-btn primary" id="ack-modal-submit">Acknowledge</button>
    </div>
  </form>
</dialog>

<script id="report-data" type="application/json">
{{REPORT_JSON}}
</script>

<script>
(function () {
  "use strict";

  // -------- persistence (sessionStorage, scoped to this browser tab) --------
  // sessionStorage throws in Safari private mode and some enterprise
  // policies. Every access is wrapped so a failure degrades gracefully
  // to in-memory defaults rather than surfacing a runtime error.
  var STORAGE_KEYS = {
    theme: "perf-sentinel:theme",
    pgstatRanking: "perf-sentinel:pgstat-ranking"
  };
  function sessionGet(key) {
    try {
      return globalThis.sessionStorage.getItem(key);
    } catch {
      // Safari private mode or a locked-down enterprise policy:
      // fall back to the in-memory default rather than surfacing
      // a runtime error to the user.
      return null;
    }
  }
  function sessionSet(key, value) {
    try {
      globalThis.sessionStorage.setItem(key, value);
    } catch {
      // See sessionGet: silent fallback is the intended posture.
      return;
    }
  }
  // -------- theme (tri-state: auto | dark | light) --------
  // "auto" follows prefers-color-scheme live. Legacy "dark"/"light"
  // sessions keep their forced modes. Applied before DOM render so
  // the body background does not flash.
  var THEME_MODES = ["auto", "dark", "light"];
  var prefersDarkMQ = null;
  try {
    prefersDarkMQ = globalThis.matchMedia
      ? globalThis.matchMedia("(prefers-color-scheme: dark)")
      : null;
  } catch {
    prefersDarkMQ = null;
  }
  function currentThemeMode() {
    var stored = sessionGet(STORAGE_KEYS.theme);
    return THEME_MODES.includes(stored) ? stored : "auto";
  }
  function resolveThemeColor(mode) {
    if (mode === "dark" || mode === "light") return mode;
    return prefersDarkMQ && prefersDarkMQ.matches ? "dark" : "light";
  }
  function applyTheme(mode) {
    document.documentElement.dataset.theme = resolveThemeColor(mode);
    var btn = document.getElementById("theme-toggle");
    if (btn) btn.textContent = "Theme: " + mode;
  }
  applyTheme(currentThemeMode());
  if (prefersDarkMQ && typeof prefersDarkMQ.addEventListener === "function") {
    try {
      prefersDarkMQ.addEventListener("change", function () {
        if (currentThemeMode() === "auto") applyTheme("auto");
      });
    } catch {
      // Older browsers expose addListener instead, not worth wiring.
    }
  }

  // -------- load payload --------
  function loadPayload() {
    var raw = document.getElementById("report-data").textContent || "";
    try {
      return JSON.parse(raw);
    } catch (e) {
      document.body.textContent = "Failed to parse embedded report data: " + e.message;
      return null;
    }
  }
  function indexTracesById(list) {
    // Null-prototype map so a hostile trace_id like "__proto__" or
    // "toString" cannot corrupt the lookup by reparenting Object's
    // prototype chain. Not currently exploitable to code execution
    // (downstream consumption is textContent-only), but the fix is
    // a one-liner and removes the family of defects.
    var map = Object.create(null);
    list.forEach(function (trace) { map[trace.trace_id] = trace; });
    return map;
  }

  var payload = loadPayload();
  if (!payload) return;

  var report = payload.report || {};
  var findings = report.findings || [];
  var greenSummary = report.green_summary || null;
  var hasGreen = !!(greenSummary && greenSummary.co2);
  var embeddedTraces = payload.embedded_traces || [];
  var tracesById = indexTracesById(embeddedTraces);

  // -------- small DOM helpers (textContent only) --------
  function el(tag, cls, text) {
    var n = document.createElement(tag);
    if (cls) n.className = cls;
    if (text !== undefined && text !== null) n.textContent = String(text);
    return n;
  }
  function setAttr(node, name, value) { node.setAttribute(name, String(value)); }
  function safeHttpsHref(url) {
    if (typeof url !== "string") return null;
    if (!url.startsWith("https://")) return null;
    if (/[\x00-\x1f\x7f-\x9f]/.test(url)) return null;
    return url;
  }
  /// Reusable metric card builder. Hoisted to the outer scope so it is
  /// not re-created on every render of `renderFindingsMetrics` and
  /// `renderGreenPanel` (Sonar S7721).
  function metricCard(label, value, sub, smallValue) {
    var wrap = el("div", "ps-metric");
    wrap.appendChild(el("div", "ps-metric-label", label));
    var v = el("div", "ps-metric-value", value);
    if (smallValue) v.classList.add("ps-metric-value-sm");
    wrap.appendChild(v);
    wrap.appendChild(el("div", "ps-metric-sub", sub));
    return wrap;
  }

  // -------- formatters --------
  function formatGco2(grams) {
    if (!Number.isFinite(grams)) return "-";
    var abs = Math.abs(grams);
    if (abs >= 1) return grams.toFixed(3) + " g";
    if (abs >= 0.001) return (grams * 1000).toFixed(3) + " mg";
    if (abs >= 0.000001) return (grams * 1000000).toFixed(3) + " ug";
    if (abs === 0) return "0 g";
    return grams.toExponential(2) + " g";
  }
  function formatDurationUs(us) {
    if (!Number.isFinite(us)) return "-";
    var ms = us / 1000;
    if (ms < 1) return ms.toFixed(2) + " ms";
    if (ms < 10) return ms.toFixed(2) + " ms";
    return Math.round(ms) + " ms";
  }
  function truncate(s, max) {
    if (typeof s !== "string") return "";
    if (s.length <= max) return s;
    return s.slice(0, max - 1) + "...";
  }
  function percent(num, denom) {
    if (!denom) return "0%";
    return Math.round((num * 100) / denom) + "%";
  }

  // severity + finding-type display maps
  var SEV_CLASS = { critical: "ps-sev-crit", warning: "ps-sev-warn", info: "ps-sev-info" };
  var SEV_LABEL = { critical: "CRIT", warning: "WARN", info: "INFO" };
  var TYPE_LABEL = {
    n_plus_one_sql: "N+1 SQL",
    n_plus_one_http: "N+1 HTTP",
    redundant_sql: "Redundant SQL",
    redundant_http: "Redundant HTTP",
    slow_sql: "Slow SQL",
    slow_http: "Slow HTTP",
    excessive_fanout: "Excessive fanout",
    chatty_service: "Chatty service",
    pool_saturation: "Pool saturation",
    serialized_calls: "Serialized calls"
  };
  function typeLabel(t) { return TYPE_LABEL[t] || String(t); }

  // -------- top bar --------
  // The brand wordmark is static markup in #topbar (inline SVG, theme-swapped
  // by CSS); renderTopbar only appends the dynamic meta/badge after it.
  function renderTopbar() {
    var bar = document.getElementById("topbar");
    var version = el("span", "ps-meta", "v" + (payload.version || ""));
    var analysis = report.analysis || { events_processed: 0, traces_analyzed: 0 };
    var meta = el(
      "span",
      "ps-meta",
      (payload.input_label || "-") +
        " . " + analysis.traces_analyzed + " traces" +
        " . " + analysis.events_processed + " spans"
    );
    var gate = report.quality_gate || { passed: true };
    var badge = el(
      "span",
      gate.passed ? "ps-gate-pass" : "ps-gate-fail",
      gate.passed ? "Quality gate passed" : "Quality gate failed"
    );
    bar.appendChild(version);
    bar.appendChild(meta);
    bar.appendChild(badge);
  }

  // -------- tabs (generic) --------
  var tabs = [];
  // Used by g-prefixed shortcuts and deep-link hash application to bail
  // out silently when a tab is not present in the current report.
  var registeredTabs = Object.create(null);
  function registerTab(key, label, countFn) {
    tabs.push({ key: key, label: label, countFn: countFn });
    registeredTabs[key] = true;
  }
  function tabIsRegistered(key) { return !!registeredTabs[key]; }
  function renderTabs() {
    var bar = document.getElementById("tabs");
    tabs.forEach(function (t) {
      var btn = el("button", "ps-tab", t.label);
      btn.type = "button";
      // ARIA tab pattern: each button is a `role="tab"` that controls
      // its tabpanel. tabindex rotates between 0 (active) and -1
      // (inactive) so keyboard users traverse the tablist exactly once
      // when tabbing through the page, then use arrow keys inside.
      setAttr(btn, "role", "tab");
      setAttr(btn, "data-tab", t.key);
      setAttr(btn, "id", "tab-" + t.key);
      setAttr(btn, "aria-controls", "panel-" + t.key);
      setAttr(btn, "aria-selected", "false");
      setAttr(btn, "tabindex", "-1");
      if (t.countFn) {
        var c = t.countFn();
        if (c !== null && c !== undefined) {
          var badge = el("span", "ps-badge", String(c));
          btn.appendChild(document.createTextNode(" "));
          btn.appendChild(badge);
        }
      }
      btn.addEventListener("click", function () { switchTab(t.key); });
      bar.appendChild(btn);
    });
    wireTablistKeyboardNav(bar);
    // default to first tab
    if (tabs.length > 0) switchTab(tabs[0].key);
  }

  function wireTablistKeyboardNav(bar) {
    // WAI-ARIA arrow-key pattern on the tablist. Coexists with the
    // g-prefixed shortcuts since they listen on different keys.
    bar.addEventListener("keydown", function (event) {
      var target = event.target;
      if (!target || target.getAttribute("role") !== "tab") return;
      var buttons = Array.prototype.slice.call(
        bar.querySelectorAll("button[role=\"tab\"]")
      );
      if (buttons.length === 0) return;
      var idx = buttons.indexOf(target);
      if (idx < 0) return;

      var next = -1;
      switch (event.key) {
        case "ArrowRight":
        case "ArrowDown":
          next = (idx + 1) % buttons.length;
          break;
        case "ArrowLeft":
        case "ArrowUp":
          next = (idx - 1 + buttons.length) % buttons.length;
          break;
        case "Home":
          next = 0;
          break;
        case "End":
          next = buttons.length - 1;
          break;
        case "Enter":
        case " ":
          event.preventDefault();
          switchTab(target.dataset.tab, true);
          return;
        default:
          return;
      }
      event.preventDefault();
      var targetBtn = buttons[next];
      if (targetBtn) {
        targetBtn.focus();
        switchTab(targetBtn.dataset.tab, true);
      }
    });
  }

  var currentTab = null;
  function switchTab(key, fromKeyboard) {
    // Clear open search filters so a stale one does not resurface
    // when the user comes back to a tab.
    if (typeof clearAllSearchFilters === "function") clearAllSearchFilters();
    currentTab = key;
    document.querySelectorAll(".ps-tab").forEach(function (btn) {
      var active = btn.dataset.tab === key;
      btn.classList.toggle("active", active);
      setAttr(btn, "aria-selected", active ? "true" : "false");
      setAttr(btn, "tabindex", active ? "0" : "-1");
    });
    tabs.forEach(function (t) {
      var panel = document.getElementById("panel-" + t.key);
      if (panel) panel.style.display = t.key === key ? "" : "none";
    });
    // Move focus only for keyboard activation. Clicks and hash
    // restoration must not steal focus.
    if (fromKeyboard) {
      var active = document.getElementById("tab-" + key);
      if (active && typeof active.focus === "function") {
        try { active.focus(); } catch { /* detached node */ }
      }
    }
    scheduleHashWrite();
  }

  // -------- findings metrics --------
  function countBySeverity() {
    var c = { critical: 0, warning: 0, info: 0 };
    findings.forEach(function (f) { if (c[f.severity] !== undefined) c[f.severity] += 1; });
    return c;
  }
  function renderFindingsMetrics() {
    var root = document.getElementById("findings-metrics");
    var sev = countBySeverity();
    var total = findings.length;

    root.appendChild(metricCard(
      "Findings",
      String(total),
      sev.critical + " crit . " + sev.warning + " warn . " + sev.info + " info"
    ));

    var avoidable = greenSummary ? (greenSummary.avoidable_io_ops || 0) : 0;
    var ratio = greenSummary ? Math.round((greenSummary.io_waste_ratio || 0) * 100) : 0;
    root.appendChild(metricCard(
      "Avoidable I/O",
      String(avoidable),
      ratio + "% waste ratio"
    ));

    if (hasGreen) {
      var co2 = greenSummary.co2;
      root.appendChild(metricCard(
        "CO2 estimate",
        formatGco2(co2.total.mid),
        String(co2.total.model || "")
      ));
    }

    var offender = greenSummary && greenSummary.top_offenders && greenSummary.top_offenders[0];
    if (offender) {
      root.appendChild(metricCard(
        "Top offender",
        truncate(offender.service, 24),
        "IIS " + (offender.io_intensity_score || 0).toFixed(1),
        true
      ));
    }
  }

  // -------- quality gate rules --------
  function formatRuleNumber(n) {
    if (!Number.isFinite(n)) return "-";
    if (Number.isInteger(n)) return String(n);
    return n.toFixed(3);
  }

  function renderQualityGateRules() {
    var host = document.getElementById("quality-gate-rules");
    if (!host) return;
    // Clear before any early return so a re-render that drops to zero
    // rules removes stale rows instead of leaving them visible.
    host.replaceChildren();
    var rules = (report.quality_gate && report.quality_gate.rules) || [];
    if (rules.length === 0) {
      host.style.display = "none";
      return;
    }
    host.style.display = "";

    host.appendChild(el("h3", "ps-section-title", "Quality gate rules"));

    var table = el("table", "ps-table");
    var thead = el("thead");
    var headRow = el("tr");
    ["Rule", "Threshold", "Actual", "Status"].forEach(function (label) {
      headRow.appendChild(el("th", null, label));
    });
    thead.appendChild(headRow);
    table.appendChild(thead);

    var tbody = el("tbody");
    rules.forEach(function (r) {
      var tr = el("tr");
      tr.appendChild(el("td", null, r.rule));
      tr.appendChild(el("td", null, formatRuleNumber(r.threshold)));
      tr.appendChild(el("td", null, formatRuleNumber(r.actual)));
      var statusTd = el("td");
      statusTd.appendChild(el(
        "span",
        r.passed ? "ps-gate-pass" : "ps-gate-fail",
        r.passed ? "PASS" : "FAIL"
      ));
      tr.appendChild(statusTd);
      tbody.appendChild(tr);
    });
    table.appendChild(tbody);
    host.appendChild(table);
  }

  // -------- filters --------
  var filterState = { severity: null, service: null };
  function renderFilterChips() {
    var root = document.getElementById("findings-filters");
    root.textContent = "";

    // Severity chips (All / Critical / Warning) behave as a single
    // mutually-exclusive selector, so they go inside a radiogroup.
    // Service chips are independent toggles: each one is pressable and
    // can be cleared by re-clicking, but they don't form a group in
    // the ARIA sense.
    var severityGroup = el("span", "ps-chip-group", null);
    setAttr(severityGroup, "role", "radiogroup");
    setAttr(severityGroup, "aria-label", "Finding severity");
    root.appendChild(severityGroup);

    var serviceGroup = el("span", "ps-chip-group", null);
    setAttr(serviceGroup, "role", "group");
    setAttr(serviceGroup, "aria-label", "Finding service");
    root.appendChild(serviceGroup);

    function appendChip(parent, label, key, chipRole, stateAttr) {
      var btn = el("button", "ps-chip", label);
      btn.type = "button";
      setAttr(btn, "role", chipRole);
      setAttr(btn, "data-key", key);
      setAttr(btn, stateAttr, "false");
      btn.addEventListener("click", function () { onFilterClick(key); });
      parent.appendChild(btn);
    }

    appendChip(severityGroup, "All", "all", "radio", "aria-checked");
    var hasCrit = findings.some(function (f) { return f.severity === "critical"; });
    var hasWarn = findings.some(function (f) { return f.severity === "warning"; });
    if (hasCrit) appendChip(severityGroup, "Critical", "sev:critical", "radio", "aria-checked");
    if (hasWarn) appendChip(severityGroup, "Warning", "sev:warning", "radio", "aria-checked");

    var services = Object.create(null);
    findings.forEach(function (f) { services[f.service] = true; });
    Object.keys(services).sort().forEach(function (s) {
      appendChip(serviceGroup, s, "svc:" + s, "button", "aria-pressed");
    });

    syncFilterChips();
  }
  function onFilterClick(key) {
    if (key === "all") {
      filterState.severity = null;
      filterState.service = null;
    } else if (key.startsWith("sev:")) {
      var sv = key.slice(4);
      filterState.severity = filterState.severity === sv ? null : sv;
    } else if (key.startsWith("svc:")) {
      var svc = key.slice(4);
      filterState.service = filterState.service === svc ? null : svc;
    }
    syncFilterChips();
    resetShownCount();
    renderFindingsList();
    scheduleHashWrite();
  }
  function syncFilterChips() {
    var anyActive = !!(filterState.severity || filterState.service);
    document.querySelectorAll("#findings-filters .ps-chip").forEach(function (chip) {
      var key = chip.dataset.key;
      var active = false;
      if (key === "all") active = !anyActive;
      else if (key === "sev:" + filterState.severity) active = true;
      else if (key === "svc:" + filterState.service) active = true;
      chip.classList.toggle("active", active);
      // Severity chips and "All" are radio-role, service chips are
      // toggle buttons. Pick the right ARIA state attribute per chip.
      var role = chip.getAttribute("role");
      var stateAttr = role === "radio" ? "aria-checked" : "aria-pressed";
      setAttr(chip, stateAttr, active ? "true" : "false");
    });
  }

  // -------- findings list --------
  // Cap the initial render at LIST_CAP rows to keep the DOM small.
  // Additional rows are revealed LIST_CAP at a time via the
  // `findings-show-more` button, tracked by `shownCount`. Every filter,
  // search or hash apply resets `shownCount` to LIST_CAP so the user
  // never ends up paginated into rows that no longer match.
  var LIST_CAP = 500;
  var visibleFindings = [];
  var selectedIndex = -1;
  var shownCount = LIST_CAP;

  function applyFilters() {
    return findings.filter(function (f) {
      if (filterState.severity && f.severity !== filterState.severity) return false;
      if (filterState.service && f.service !== filterState.service) return false;
      return true;
    });
  }

  function renderFindingsList() {
    var root = document.getElementById("findings-list");
    var empty = document.getElementById("findings-empty");
    root.textContent = "";
    var filtered = applyFilters();
    visibleFindings = filtered.slice(0, shownCount);
    selectedIndex = visibleFindings.length > 0 ? 0 : -1;

    if (visibleFindings.length === 0) {
      empty.style.display = "";
      syncShowMore(filtered.length);
      return;
    }
    empty.style.display = "none";

    visibleFindings.forEach(function (f, idx) {
      root.appendChild(buildFindingRow(f, idx));
    });
    syncSelection();
    syncShowMore(filtered.length);
  }

  function syncShowMore(totalMatching) {
    var btn = document.getElementById("findings-show-more");
    if (!btn) return;
    if (visibleFindings.length >= totalMatching) {
      btn.style.display = "none";
      return;
    }
    var remaining = totalMatching - visibleFindings.length;
    var next = Math.min(LIST_CAP, remaining);
    btn.style.display = "";
    btn.textContent = "Show " + next + " more findings (" + remaining + " remaining)";
  }

  function resetShownCount() { shownCount = LIST_CAP; }

  function buildFindingRow(f, idx) {
    var row = el("div", "ps-row");
    setAttr(row, "data-idx", idx);
    // Exposed for the live-mode JS so click handlers on the per-row
    // Ack/Revoke buttons can resolve the signature via DOM lookup. The
    // attribute is harmless in static mode (the buttons stay hidden).
    if (f.signature) setAttr(row, "data-sig", f.signature);

    var sev = el("div", SEV_CLASS[f.severity] || "ps-sev-info", SEV_LABEL[f.severity] || "INFO");
    row.appendChild(sev);

    var main = el("div", "ps-fin-main");
    var typeRow = el("div", "ps-fin-type");
    typeRow.appendChild(document.createTextNode(typeLabel(f.type || f.finding_type)));
    var svc = el("span", "ps-fin-service", " in " + (f.service || "-"));
    typeRow.appendChild(svc);
    main.appendChild(typeRow);

    var tpl = (f.pattern && f.pattern.template) || "";
    main.appendChild(el("div", "ps-fin-detail", tpl));
    row.appendChild(main);

    var right = el("div", "ps-fin-right");
    var occ = (f.pattern && f.pattern.occurrences) || 0;
    right.appendChild(document.createTextNode(occ + " occ"));
    right.appendChild(document.createElement("br"));
    right.appendChild(el("span", "ps-fin-right-sub", truncate(f.source_endpoint || "-", 48)));
    row.appendChild(right);

    // Live-mode action container. Always rendered, hidden by CSS in
    // static mode (`.ps-fin-actions { display: none }`). The
    // `body.ps-live` class flipped at boot reveals it.
    var actions = el("div", "ps-fin-actions");
    var btn = el("button", "ps-fin-action-btn", "Ack");
    btn.type = "button";
    setAttr(btn, "data-action", "ack");
    setAttr(btn, "aria-label", "Acknowledge this finding");
    actions.appendChild(btn);
    row.appendChild(actions);

    row.addEventListener("click", function (event) {
      var t = event.target;
      // Bail when the click landed on the live-mode action button so
      // its own handler runs without ALSO opening the Explain tab.
      if (t && (t.classList.contains("ps-fin-action-btn") || t.closest && t.closest(".ps-fin-actions"))) {
        return;
      }
      selectedIndex = idx;
      syncSelection();
      openExplain(f);
    });
    return row;
  }

  function syncSelection() {
    document.querySelectorAll("#findings-list .ps-row").forEach(function (row, idx) {
      row.classList.toggle("selected", idx === selectedIndex);
    });
  }

  // -------- explain tree --------
  // Shared empty state for cap-reached, resolved-diff, and
  // Correlations clickthroughs whose trace is not in embedded_traces.
  function renderExplainEmpty(message) {
    document.getElementById("explain-empty").style.display = "none";
    var content = document.getElementById("explain-content");
    var notEmbedded = document.getElementById("explain-not-embedded");
    content.style.display = "none";
    notEmbedded.style.display = "";
    notEmbedded.textContent = message;
    switchTab("explain");
  }

  function openExplain(f) {
    document.getElementById("explain-empty").style.display = "none";
    var content = document.getElementById("explain-content");
    var notEmbedded = document.getElementById("explain-not-embedded");
    notEmbedded.style.display = "none";
    notEmbedded.textContent = "";

    var trace = tracesById[f.trace_id];
    if (!trace) {
      // Happens when the finding's trace was dropped by the size cap.
      renderExplainEmpty(
        "Trace not embedded (cap reached). Rerun with --max-traces-embedded <higher> to include it."
      );
      return;
    }

    content.style.display = "";
    var breadcrumb = document.getElementById("explain-breadcrumb");
    var shortTraceId = (f.trace_id || "").slice(0, 12);
    breadcrumb.textContent =
      "trace_id = " + shortTraceId + " . " + (f.service || "-") + " . " + (f.source_endpoint || "-");

    var treeRoot = document.getElementById("explain-tree");
    treeRoot.textContent = "";
    renderTree(treeRoot, trace, f);

    var fix = document.getElementById("explain-fix");
    fix.textContent = "";
    if (f.suggested_fix) {
      fix.style.display = "";
      renderSuggestedFix(fix, f.suggested_fix);
    } else {
      fix.style.display = "none";
    }

    switchTab("explain");
  }

  /// Build the parent -> children adjacency for a span list plus the
  /// roots array. Extracted from `renderTree` to keep its cognitive
  /// complexity under Sonar's 15-point threshold.
  function buildSpanTree(spans) {
    // Null-prototype maps for all user-controlled keys (span_id,
    // parent_span_id) so hostile identifiers like "__proto__" cannot
    // corrupt the lookup chain. Mirrors the indexTracesById fix.
    var byId = Object.create(null);
    spans.forEach(function (s) { byId[s.span_id] = s; });
    var childrenByParent = Object.create(null);
    var roots = [];
    spans.forEach(function (s, idx) {
      var parent = s.parent_span_id;
      if (parent && byId[parent]) {
        if (!childrenByParent[parent]) childrenByParent[parent] = [];
        childrenByParent[parent].push(idx);
      } else {
        roots.push(idx);
      }
    });
    return { roots: roots, childrenByParent: childrenByParent };
  }

  /// Iterative DFS walker that appends one row per span. Depth is
  /// capped at 64 to cut cycles if any, the total row count is capped
  /// at 2000 to bound worst-case DOM size.
  function emitSpanTreeRows(root, spans, tree, targetTpl) {
    var stack = [];
    for (var r = tree.roots.length - 1; r >= 0; r--) {
      stack.push({ idx: tree.roots[r], depth: 0 });
    }
    var emitted = 0;
    var HARD_SPAN_CAP = 2000;
    var MAX_DEPTH = 64;
    while (stack.length > 0 && emitted < HARD_SPAN_CAP) {
      var frame = stack.pop();
      if (frame.depth > MAX_DEPTH) continue;
      var span = spans[frame.idx];
      root.appendChild(buildSpanRow(span, frame.depth, targetTpl));
      emitted += 1;
      var kids = tree.childrenByParent[span.span_id] || [];
      for (var k = kids.length - 1; k >= 0; k--) {
        stack.push({ idx: kids[k], depth: frame.depth + 1 });
      }
    }
  }

  function renderTree(root, trace, finding) {
    var spans = trace.spans || [];
    if (spans.length === 0) {
      root.appendChild(el("div", "ps-span dim", "(empty trace)"));
      return;
    }
    var tree = buildSpanTree(spans);
    var targetTpl = (finding.pattern && finding.pattern.template) || null;
    emitSpanTreeRows(root, spans, tree, targetTpl);
  }

  function buildSpanRow(span, depth, targetTpl) {
    var row = el("div", "ps-span");
    var isFinding = targetTpl && span.template === targetTpl;
    if (isFinding) row.classList.add("hilite");
    else row.classList.add("dim");
    row.style.paddingLeft = (depth * 20) + "px";

    // Cross-nav to pg_stat: a SQL span whose normalized template matches
    // a row in pg_stat becomes clickable. The click switches to the
    // pg_stat tab with the matching row highlighted and the filter
    // banner shown.
    var pgStatMatch =
      hasPgStat && span.event_type === "sql" && pgStatByTemplate[span.template]
        ? span.template
        : null;
    if (pgStatMatch) {
      row.classList.add("ps-span-pgstat-link");
      row.addEventListener("click", function () {
        switchTab("pgstat");
        showPgStatDrill(pgStatMatch);
      });
    }

    var text = el("span", "ps-span-text");
    if (isFinding) text.classList.add("ps-span-find");
    text.textContent = describeSpan(span);
    row.appendChild(text);

    row.appendChild(el("span", "ps-span-dur", formatDurationUs(span.duration_us)));
    return row;
  }

  function describeSpan(span) {
    if (span.event_type === "sql") {
      return span.template || span.target || span.operation || "(sql)";
    }
    if (span.event_type === "http_out") {
      var op = (span.operation || "GET").toUpperCase();
      return op + " " + (span.template || span.target || "");
    }
    return span.operation || span.target || "(span)";
  }

  function renderSuggestedFix(root, fix) {
    var label = el("div", "ps-drill-label", "Suggested fix . " + (fix.framework || "-"));
    root.appendChild(label);
    root.appendChild(document.createTextNode(fix.recommendation || ""));
    var href = safeHttpsHref(fix.reference_url);
    if (href) {
      root.appendChild(document.createTextNode(" "));
      var a = el("a", "ps-drill-link", "See documentation");
      setAttr(a, "href", href);
      setAttr(a, "target", "_blank");
      setAttr(a, "rel", "noopener noreferrer");
      root.appendChild(a);
    }
  }

  // -------- green panel --------
  function renderGreenPanel() {
    if (!hasGreen) return;
    var co2 = greenSummary.co2;

    var metrics = document.getElementById("green-metrics");
    metrics.appendChild(metricCard(
      "Operational CO2",
      formatGco2(co2.operational_gco2),
      "low " + formatGco2(co2.total.low) + " . high " + formatGco2(co2.total.high)
    ));
    metrics.appendChild(metricCard(
      "Embodied CO2",
      formatGco2(co2.embodied_gco2),
      "SCI v1.0 M term"
    ));
    var avoidMid = co2.avoidable.mid;
    var ratio = percent(avoidMid, co2.operational_gco2);
    metrics.appendChild(metricCard(
      "Avoidable",
      formatGco2(avoidMid),
      ratio + " of operational"
    ));

    renderScoringConfigBandeau(greenSummary.scoring_config);

    var regions = greenSummary.regions || [];
    var header = document.getElementById("green-regions-header");
    header.textContent = "Regions (" + regions.length + ")";
    if (regions.length === 0) {
      document.getElementById("green-regions-empty").style.display = "";
      return;
    }
    document.getElementById("green-regions-table").style.display = "";
    var tbody = document.getElementById("green-regions-body");
    regions.forEach(function (r) {
      var tr = document.createElement("tr");
      tr.appendChild(el("td", null, r.region || "-"));
      tr.appendChild(el("td", null, (r.grid_intensity_gco2_kwh || 0).toFixed(0)));
      tr.appendChild(el("td", null, String(r.io_ops || 0)));
      tr.appendChild(el("td", null, formatGco2(r.co2_gco2 || 0)));
      tr.appendChild(el("td", null, r.intensity_source || "-"));
      tr.appendChild(buildEstimatedCell(r));
      tbody.appendChild(tr);
    });
  }

  // Renders three chips above the green-regions table: API version,
  // emission factor type, temporal granularity. Hidden when the
  // payload carries no scoring_config (Electricity Maps not configured).
  // The 3 fields are bounded enums on the Rust side, no escaping needed.
  function renderScoringConfigBandeau(cfg) {
    var bandeau = document.getElementById("green-scoring-config");
    if (!bandeau) return;
    if (!cfg) {
      bandeau.style.display = "none";
      return;
    }
    bandeau.replaceChildren(
      el("span", "ps-scoring-label", "Carbon scoring:"),
      buildApiVersionChip(cfg.api_version),
      buildEmissionFactorChip(cfg.emission_factor_type),
      buildTemporalGranularityChip(cfg.temporal_granularity)
    );
    bandeau.style.display = "";
  }

  function buildScoringChip(label, modifier, tooltip) {
    var chip = el("span", "ps-scoring-chip ps-scoring-chip-" + modifier, label);
    chip.setAttribute("title", tooltip);
    return chip;
  }

  // The three chip builders below pattern-match on the known wire
  // values and fall through to a verbatim-text neutral chip on
  // anything else. This keeps a forward-rolled enum variant (a
  // future EmissionFactorType added in a later perf-sentinel
  // release) from silently masquerading as the default chip when an
  // older dashboard renders a newer baseline. The bounded-input
  // invariant on the Rust side (typed enum, no #[serde(other)])
  // keeps the textContent path safe for in-version rendering.
  function buildApiVersionChip(version) {
    if (version === "v3") {
      return buildScoringChip(
        "Electricity Maps v3",
        "warning",
        "v3 is in legacy mode. Migrate to v4 to silence the deprecation warning."
      );
    }
    if (version === "v4") {
      return buildScoringChip(
        "Electricity Maps v4",
        "neutral",
        "API v4 is the current default."
      );
    }
    if (version === "custom") {
      return buildScoringChip(
        "Electricity Maps custom",
        "neutral",
        "Custom endpoint without /vN suffix (proxy or mock)."
      );
    }
    return buildScoringChip(
      "Electricity Maps " + String(version),
      "neutral",
      "Unrecognized API version, displayed verbatim."
    );
  }

  function buildEmissionFactorChip(factor) {
    if (factor === "direct") {
      return buildScoringChip(
        "direct",
        "accent",
        "Direct emissions only. Used by some Scope 2 frameworks."
      );
    }
    if (factor === "lifecycle") {
      return buildScoringChip(
        "lifecycle",
        "neutral",
        "Default. Includes upstream emissions (manufacturing, transport)."
      );
    }
    return buildScoringChip(
      String(factor),
      "neutral",
      "Unrecognized emission factor type, displayed verbatim."
    );
  }

  function buildTemporalGranularityChip(granularity) {
    if (granularity === "5_minutes" || granularity === "15_minutes") {
      return buildScoringChip(
        granularity,
        "accent",
        "Sub-hour granularity. Requires a paid Electricity Maps plan."
      );
    }
    if (granularity === "hourly") {
      return buildScoringChip(
        "hourly",
        "neutral",
        "Default. Hourly average carbon intensity."
      );
    }
    return buildScoringChip(
      String(granularity),
      "neutral",
      "Unrecognized temporal granularity, displayed verbatim."
    );
  }

  function buildEstimatedCell(r) {
    var td = document.createElement("td");
    if (r.intensity_estimated === true) {
      var badge = el("span", "ps-badge-estimated", "Estimated");
      var tip = r.intensity_estimation_method
        ? "Method: " + r.intensity_estimation_method +
          ". Estimated by Electricity Maps using their internal model. " +
          "Less precise than measured data but reliable for trend analysis."
        : "Estimated by Electricity Maps. Less precise than measured data " +
          "but reliable for trend analysis.";
      badge.setAttribute("title", tip);
      td.appendChild(badge);
    } else if (r.intensity_estimated === false) {
      var measured = el("span", "ps-badge-measured", "Measured");
      measured.setAttribute("title", "Source data measured directly from the grid operator.");
      td.appendChild(measured);
    } else {
      td.textContent = "-";
    }
    return td;
  }

  // -------- pg_stat / diff / correlations state --------
  var pgStat = payload.pg_stat || null;
  // Cross-nav lookup indexed across every ranking's entries so the
  // Explain-to-pg_stat hotlink fires regardless of which ranking the
  // user switches to.
  var pgStatByTemplate = Object.create(null);
  if (pgStat && Array.isArray(pgStat.rankings)) {
    pgStat.rankings.forEach(function (r) {
      (r.entries || []).forEach(function (entry) {
        pgStatByTemplate[entry.normalized_template] = entry;
      });
    });
  }
  var hasPgStat = Object.keys(pgStatByTemplate).length > 0;

  var diffData = payload.diff || null;
  var hasDiff = !!diffData;

  // Correlations are populated only in daemon-produced reports. The batch
  // pipeline does not emit them. This branch lights up automatically
  // when a future daemon report is fed into
  // `perf-sentinel report --input <daemon.json>`.
  var correlations =
    report.correlations && report.correlations.length > 0 ? report.correlations : [];
  var hasCorrelations = correlations.length > 0;

  // -------- pg_stat panel --------
  // Rankings stay in the stable order `rank_pg_stat` emits:
  // [by_total_time, by_calls, by_mean_time, by_io_blocks]. The
  // sub-switcher chips are built from `pgStatRankings` so new rankings
  // appended server-side surface automatically without any JS change.
  var pgStatRankings =
    pgStat && Array.isArray(pgStat.rankings) ? pgStat.rankings : [];
  var activeRankingIndex = 0;
  // Template currently highlighted by the drill banner, if any. Used
  // to decide whether to re-apply the hilite after a ranking switch.
  var pgStatHiliteTemplate = null;

  // Human-friendly chip labels for the four known rankings. Unknown
  // labels fall through to the raw server-side string so an older or
  // customized PgStatReport still renders something sensible.
  var PGSTAT_LABELS = {
    "top by total_exec_time": "Total time",
    "top by calls": "Calls",
    "top by mean_exec_time": "Mean time",
    "top by shared_blks_total": "I/O blocks"
  };

  function activePgStatEntries() {
    if (pgStatRankings.length === 0) return [];
    var idx = Math.min(activeRankingIndex, pgStatRankings.length - 1);
    return pgStatRankings[idx].entries || [];
  }

  function renderPgStatPanel() {
    if (!hasPgStat) {
      document.getElementById("pgstat-empty").style.display = "";
      return;
    }
    renderPgStatRankings();
    renderPgStatTable();
  }

  function renderPgStatRankings() {
    var root = document.getElementById("pgstat-rankings");
    root.textContent = "";
    if (pgStatRankings.length <= 1) {
      // Hide the chip row when there is nothing to switch between.
      root.style.display = "none";
      return;
    }
    root.style.display = "";
    // Mutually-exclusive chip group. ARIA radiogroup pattern: the
    // container carries role="radiogroup", each chip is role="radio"
    // with aria-checked rewritten on every selection.
    setAttr(root, "role", "radiogroup");
    setAttr(root, "aria-label", "pg_stat ranking");
    pgStatRankings.forEach(function (r, idx) {
      var label = PGSTAT_LABELS[r.label] || r.label || ("Ranking " + (idx + 1));
      var btn = el("button", "ps-chip", label);
      btn.type = "button";
      setAttr(btn, "role", "radio");
      setAttr(btn, "data-ranking-index", String(idx));
      var isActive = idx === activeRankingIndex;
      setAttr(btn, "aria-checked", isActive ? "true" : "false");
      if (isActive) btn.classList.add("active");
      btn.addEventListener("click", function () {
        selectPgStatRanking(idx);
      });
      root.appendChild(btn);
    });
  }

  function selectPgStatRanking(idx) {
    // Persist the choice even when idx already matches activeRankingIndex.
    // This covers the deep-link restore path where the hash carries the
    // current ranking but sessionStorage was empty, so we still honor
    // the user's implicit intent to remember this ranking.
    sessionSet(STORAGE_KEYS.pgstatRanking, rankingSlugForIndex(idx));
    if (idx === activeRankingIndex) return;
    activeRankingIndex = idx;
    var chips = document.querySelectorAll("#pgstat-rankings .ps-chip");
    for (var i = 0; i < chips.length; i++) {
      var isActive = i === idx;
      chips[i].classList.toggle("active", isActive);
      setAttr(chips[i], "aria-checked", isActive ? "true" : "false");
    }
    renderPgStatTable();
    scheduleHashWrite();
    // Preserve the hilite when the previously-hilited template exists
    // in the new ranking; else silently clear the drill + hilite.
    if (pgStatHiliteTemplate) {
      var stillPresent = activePgStatEntries().some(function (entry) {
        return entry.normalized_template === pgStatHiliteTemplate;
      });
      if (stillPresent) {
        highlightPgStatRow(pgStatHiliteTemplate);
      } else {
        clearPgStatDrill();
      }
    }
    // Re-apply the search filter against the new rowset. Null-guard
    // covers the boot path where the filter init has not run yet.
    if (SEARCHABLE_TABS && SEARCHABLE_TABS.pgstat) {
      applySearchFilter(SEARCHABLE_TABS.pgstat);
    }
  }

  function renderPgStatTable() {
    var body = document.getElementById("pgstat-body");
    body.textContent = "";
    activePgStatEntries().forEach(function (entry) {
      var tr = document.createElement("tr");
      setAttr(tr, "data-template", entry.normalized_template);
      tr.appendChild(el("td", null, entry.normalized_template));
      tr.appendChild(el("td", null, String(entry.calls || 0)));
      tr.appendChild(el("td", null, (entry.total_exec_time_ms || 0).toFixed(1)));
      tr.appendChild(el("td", null, (entry.mean_exec_time_ms || 0).toFixed(2)));
      body.appendChild(tr);
    });
  }

  function showPgStatDrill(template) {
    var drill = document.getElementById("pgstat-drill");
    var txt = document.getElementById("pgstat-drill-text");
    drill.style.display = "";
    txt.textContent = template;
    pgStatHiliteTemplate = template;
    highlightPgStatRow(template);
  }
  function clearPgStatDrill() {
    document.getElementById("pgstat-drill").style.display = "none";
    pgStatHiliteTemplate = null;
    document.querySelectorAll("#pgstat-body tr").forEach(function (row) {
      row.classList.remove("hilite");
    });
  }
  function highlightPgStatRow(template) {
    var matched = null;
    document.querySelectorAll("#pgstat-body tr").forEach(function (row) {
      if (row.dataset.template === template) {
        row.classList.add("hilite");
        matched = row;
      } else {
        row.classList.remove("hilite");
      }
    });
    if (matched) matched.scrollIntoView({ block: "nearest" });
  }

  // -------- diff panel --------
  function renderDiffPanel() {
    if (!hasDiff) return;
    renderDiffFindingsList(
      "diff-new-list",
      "diff-new-header",
      "New findings",
      diffData.new_findings || [],
      true
    );
    renderDiffFindingsList(
      "diff-resolved-list",
      "diff-resolved-header",
      "Resolved findings",
      diffData.resolved_findings || [],
      "resolved"
    );
    renderDiffSevTable(diffData.severity_changes || []);
    renderDiffEndpTable(diffData.endpoint_metric_deltas || []);
  }
  function renderDiffFindingsList(listId, headerId, label, items, kind) {
    var list = document.getElementById(listId);
    var hdr = document.getElementById(headerId);
    hdr.textContent = label + " (" + items.length + ")";
    list.textContent = "";
    items.forEach(function (f) {
      list.appendChild(buildDiffFindingRow(f, kind));
    });
  }
  function buildDiffFindingRow(f, kind) {
    var row = el("div", "ps-row");
    row.appendChild(
      el("div", SEV_CLASS[f.severity] || "ps-sev-info", SEV_LABEL[f.severity] || "INFO")
    );
    var main = el("div", "ps-fin-main");
    var typeRow = el("div", "ps-fin-type");
    typeRow.appendChild(document.createTextNode(typeLabel(f.type || f.finding_type)));
    typeRow.appendChild(el("span", "ps-fin-service", " in " + (f.service || "-")));
    main.appendChild(typeRow);
    main.appendChild(el("div", "ps-fin-detail", (f.pattern && f.pattern.template) || ""));
    row.appendChild(main);
    var right = el("div", "ps-fin-right");
    right.appendChild(document.createTextNode(((f.pattern && f.pattern.occurrences) || 0) + " occ"));
    right.appendChild(document.createElement("br"));
    right.appendChild(el("span", "ps-fin-right-sub", truncate(f.source_endpoint || "-", 48)));
    row.appendChild(right);
    if (kind === "resolved") {
      // Resolved findings have no trace in the current run. Route the
      // click through the shared empty-state helper so the user ends
      // up on Explain with a clear explanation rather than on an
      // empty panel.
      row.addEventListener("click", function () {
        renderExplainEmpty(
          "This finding was resolved. Its trace lives in the baseline report, not in the current run. Open the baseline report separately to explore its traces."
        );
      });
    } else if (kind === true || kind === "new") {
      row.addEventListener("click", function () {
        openExplain(f);
      });
    } else {
      row.style.cursor = "default";
    }
    return row;
  }
  function renderDiffSevTable(items) {
    var hdr = document.getElementById("diff-sev-header");
    var tbl = document.getElementById("diff-sev-table");
    var body = document.getElementById("diff-sev-body");
    hdr.textContent = "Severity changes (" + items.length + ")";
    body.textContent = "";
    if (items.length === 0) {
      tbl.style.display = "none";
      return;
    }
    tbl.style.display = "";
    items.forEach(function (c) {
      var f = c.finding || {};
      var tr = document.createElement("tr");
      tr.appendChild(el("td", null, typeLabel(f.type || f.finding_type)));
      tr.appendChild(el("td", null, f.service || "-"));
      tr.appendChild(el("td", null, f.source_endpoint || "-"));
      tr.appendChild(el("td", null, SEV_LABEL[c.before_severity] || String(c.before_severity)));
      tr.appendChild(el("td", null, SEV_LABEL[c.after_severity] || String(c.after_severity)));
      body.appendChild(tr);
    });
  }
  function renderDiffEndpTable(items) {
    var hdr = document.getElementById("diff-endp-header");
    var tbl = document.getElementById("diff-endp-table");
    var body = document.getElementById("diff-endp-body");
    hdr.textContent = "Endpoint metric deltas (" + items.length + ")";
    body.textContent = "";
    if (items.length === 0) {
      tbl.style.display = "none";
      return;
    }
    tbl.style.display = "";
    items.forEach(function (d) {
      var tr = document.createElement("tr");
      tr.appendChild(el("td", null, d.service || "-"));
      tr.appendChild(el("td", null, d.endpoint || "-"));
      tr.appendChild(el("td", null, String(d.before_io_ops || 0)));
      tr.appendChild(el("td", null, String(d.after_io_ops || 0)));
      var delta = d.delta || 0;
      tr.appendChild(el("td", null, (delta > 0 ? "+" : "") + String(delta)));
      body.appendChild(tr);
    });
  }

  // -------- correlations panel --------
  // Renders `CrossTraceCorrelation` entries emitted by the daemon,
  // matching the Rust struct shape: `source` and `target` are
  // `CorrelationEndpoint { finding_type, service, template }`,
  // timing is `median_lag_ms` and `co_occurrence_count`.
  function renderCorrelationsPanel() {
    if (!hasCorrelations) return;
    var list = document.getElementById("correlations-list");
    list.textContent = "";
    correlations.forEach(function (c) {
      var src = c.source || {};
      var tgt = c.target || {};
      var row = el("div", "ps-row ps-correlation-row");
      var leftLabel =
        (src.service || "?") + ":" + typeLabel(src.finding_type || "?");
      var rightLabel =
        (tgt.service || "?") + ":" + typeLabel(tgt.finding_type || "?");
      var main = el("div", "ps-fin-main");
      main.appendChild(el("div", "ps-fin-type", leftLabel + " -> " + rightLabel));
      var conf = Math.round((c.confidence || 0) * 100);
      var lag = (c.median_lag_ms || 0).toFixed(0);
      main.appendChild(
        el(
          "div",
          "ps-fin-detail",
          "confidence " + conf + "% . median lag " + lag + " ms"
        )
      );
      row.appendChild(el("div", "ps-sev-info", "CORR"));
      row.appendChild(main);
      row.appendChild(
        el("div", "ps-fin-right", String(c.co_occurrence_count || 0) + "x")
      );
      // Daemon-produced correlations carry sample_trace_id. When set,
      // clicking jumps to Explain. openExplain falls back to the
      // shared empty state when the trace is not embedded.
      if (c.sample_trace_id) {
        row.classList.add("ps-correlation-clickable");
        row.addEventListener("click", function () {
          openExplain(syntheticFindingFromCorrelation(c));
        });
      } else {
        row.style.cursor = "default";
      }
      list.appendChild(row);
    });
  }

  function syntheticFindingFromCorrelation(c) {
    // Minimum shape openExplain reads: trace_id plus the fields used
    // by the breadcrumb.
    var tgt = c.target || {};
    return {
      trace_id: c.sample_trace_id,
      service: tgt.service || "-",
      source_endpoint: "-",
      pattern: { template: tgt.template || "" }
    };
  }

  // -------- search --------
  // Filter state is cleared on tab switch. The current panel's search
  // input stays empty and hidden on activation, so switching away and
  // back resets the filter implicitly. Simple, no cross-tab carryover.
  function matchRowByText(row, q) {
    return (row.textContent || "").toLowerCase().includes(q);
  }
  var SEARCHABLE_TABS = {
    findings: {
      inputId: "findings-search",
      rowsSelector: "#findings-list .ps-row"
    },
    pgstat: {
      inputId: "pgstat-search",
      rowsSelector: "#pgstat-body tr"
    },
    diff: {
      inputId: "diff-search",
      // Filter only the two findings lists; the severity_changes and
      // endpoint_metric_deltas tables stay unfiltered (short lists).
      rowsSelector: "#diff-new-list .ps-row, #diff-resolved-list .ps-row"
    },
    correlations: {
      inputId: "correlations-search",
      rowsSelector: "#correlations-list .ps-row"
    }
  };
  function initSearchInputs() {
    Object.keys(SEARCHABLE_TABS).forEach(function (tabKey) {
      var cfg = SEARCHABLE_TABS[tabKey];
      var input = document.getElementById(cfg.inputId);
      if (!input) return;
      input.addEventListener("input", function () {
        applySearchFilter(cfg);
        scheduleHashWrite();
      });
    });
  }
  function applySearchFilter(cfg) {
    var input = document.getElementById(cfg.inputId);
    var q = (input.value || "").toLowerCase();
    document.querySelectorAll(cfg.rowsSelector).forEach(function (row) {
      row.style.display = !q || matchRowByText(row, q) ? "" : "none";
    });
  }
  function openSearchForActiveTab() {
    var cfg = SEARCHABLE_TABS[currentTab];
    if (!cfg) return;
    var input = document.getElementById(cfg.inputId);
    if (!input) return;
    input.style.display = "block";
    input.focus();
    input.select();
  }
  function closeSearch(input) {
    input.value = "";
    applySearchFilter(SEARCHABLE_TABS[currentTab]);
    input.style.display = "none";
    input.blur();
  }
  function clearAllSearchFilters() {
    Object.keys(SEARCHABLE_TABS).forEach(function (tabKey) {
      var cfg = SEARCHABLE_TABS[tabKey];
      var input = document.getElementById(cfg.inputId);
      if (!input) return;
      if (input.value) {
        input.value = "";
        applySearchFilter(cfg);
      }
      input.style.display = "none";
    });
  }

  // -------- trim banner --------
  function renderTrimBanner() {
    var t = payload.trimmed_traces;
    var f = payload.trimmed_findings;
    if (!t && !f) return;
    var parts = [];
    if (f) {
      parts.push("Showing " + f.kept + " of " + f.total +
        " findings (trimmed for file size, critical first; the JSON report keeps the full set).");
    }
    if (t) {
      parts.push("Showing " + t.kept + " of " + t.total +
        " traces (trimmed for file size). Rerun with --max-traces-embedded <higher> to see more.");
    }
    var b = document.getElementById("trim-banner");
    b.style.display = "";
    b.textContent = parts.join(" ");
  }

  // -------- theme toggle --------
  // Click cycles through auto -> dark -> light -> auto. The actual
  // data-theme attribute and button label are handled by applyTheme,
  // defined above alongside the initial boot-time resolution.
  document.getElementById("theme-toggle").addEventListener("click", function () {
    var idx = THEME_MODES.indexOf(currentThemeMode());
    var next = THEME_MODES[(idx + 1) % THEME_MODES.length];
    sessionSet(STORAGE_KEYS.theme, next);
    applyTheme(next);
  });

  // -------- CSV export --------
  // Rows are assembled as arrays of cell values, then each cell is
  // RFC 4180 escaped and the joined line is written to a Blob. No DOM
  // injection involved, so this bypasses the innerHTML hazard entirely.
  function csvEscape(value) {
    if (value === null || value === undefined) return "";
    var s = String(value);
    // Formula-injection guard (OWASP CSV Injection). Excel, LibreOffice
    // and Google Sheets all interpret a cell that starts with =, +, -,
    // @ or a tab as a formula. A hostile SQL template or service name
    // that begins with one of those characters would execute on open.
    // The apostrophe prefix neutralizes the formula without losing the
    // original text: spreadsheets display the cell as-is and drop the
    // leading apostrophe, consumers that parse the CSV literally keep
    // it. Strict first-byte check: do not strip leading whitespace
    // (a leading tab is itself a formula trigger on some clients).
    if (s.length > 0 && "=+-@\t".includes(s.charAt(0))) {
      s = "'" + s;
    }
    if (s.includes(",") || s.includes("\"") ||
        s.includes("\n") || s.includes("\r")) {
      return "\"" + s.replaceAll("\"", "\"\"") + "\"";
    }
    return s;
  }
  function csvLine(cells) {
    return cells.map(csvEscape).join(",");
  }
  // Note on numeric cells: producers pass JS numbers straight through
  // csvEscape, which calls String(n). That drops trailing zeros
  // (`840.0` -> `"840"`) because V8 Number.toString() normalizes the
  // decimal representation. Excel and every major CSV consumer handle
  // this correctly, so we keep the cheap path rather than forcing
  // `.toFixed(n)` per column.
  function buildCsv(header, rows) {
    var lines = [csvLine(header)];
    rows.forEach(function (r) { lines.push(csvLine(r)); });
    return lines.join("\r\n") + "\r\n";
  }
  function sanitizeLabelForFilename(s) {
    if (!s) return "";
    var cleaned = String(s).replaceAll(/[^A-Za-z0-9]+/g, "-");
    cleaned = cleaned.replaceAll(/-+/g, "-").replaceAll(/^-|-$/g, "");
    return cleaned;
  }
  function pad2(n) { return n < 10 ? "0" + n : String(n); }
  function timestampForFilename() {
    var d = new Date();
    return d.getFullYear() +
      pad2(d.getMonth() + 1) +
      pad2(d.getDate()) + "-" +
      pad2(d.getHours()) +
      pad2(d.getMinutes()) +
      pad2(d.getSeconds());
  }
  function buildCsvFilename(tabName) {
    var label = sanitizeLabelForFilename(payload.input_label || "");
    var prefix = label ? "perf-sentinel-" + label : "perf-sentinel";
    return prefix + "-" + tabName + "-" + timestampForFilename() + ".csv";
  }
  function downloadCsv(tabName, csvText) {
    var blob = new Blob([csvText], { type: "text/csv;charset=utf-8" });
    var url = URL.createObjectURL(blob);
    var a = document.createElement("a");
    a.href = url;
    a.download = buildCsvFilename(tabName);
    document.body.appendChild(a);
    a.click();
    a.remove();
    // Delay the revoke so the browser has the URL in hand when it
    // kicks off the download. Immediate revoke breaks the download on
    // some browsers. 0ms is enough to escape the current task.
    setTimeout(function () { URL.revokeObjectURL(url); }, 0);
  }

  function searchTermFor(tabKey) {
    var cfg = SEARCHABLE_TABS && SEARCHABLE_TABS[tabKey];
    if (!cfg) return "";
    var input = document.getElementById(cfg.inputId);
    if (!input) return "";
    return (input.value || "").toLowerCase();
  }
  function matchesSearch(haystack, term) {
    if (!term) return true;
    return String(haystack || "").toLowerCase().includes(term);
  }

  function exportFindingsCsv() {
    var term = searchTermFor("findings");
    var header = [
      "severity", "type", "service", "endpoint", "template",
      "occurrences", "first_timestamp", "last_timestamp",
      "code_function", "code_filepath", "code_lineno",
      "suggested_fix_framework", "suggested_fix_recommendation",
      "confidence"
    ];
    var rows = applyFilters().filter(function (f) {
      var blob = [
        f.severity, f.type || f.finding_type, f.service, f.source_endpoint,
        f.pattern && f.pattern.template
      ].join(" ");
      return matchesSearch(blob, term);
    }).map(function (f) {
      var p = f.pattern || {};
      var loc = f.code_location || {};
      var fix = f.suggested_fix || {};
      return [
        f.severity || "",
        f.type || f.finding_type || "",
        f.service || "",
        f.source_endpoint || "",
        p.template || "",
        p.occurrences ?? "",
        f.first_timestamp || "",
        f.last_timestamp || "",
        loc.function || "",
        loc.filepath || "",
        loc.lineno ?? "",
        fix.framework || "",
        fix.recommendation || "",
        f.confidence ?? ""
      ];
    });
    downloadCsv("findings", buildCsv(header, rows));
  }

  function exportPgStatCsv() {
    var term = searchTermFor("pgstat");
    var header = [
      "template", "calls", "total_exec_time_ms", "mean_exec_time_ms",
      "rows", "shared_blks_hit", "shared_blks_read", "seen_in_traces"
    ];
    var rows = activePgStatEntries().filter(function (e) {
      return matchesSearch(e.normalized_template, term);
    }).map(function (e) {
      return [
        e.normalized_template || "",
        e.calls ?? "",
        e.total_exec_time_ms ?? "",
        e.mean_exec_time_ms ?? "",
        e.rows ?? "",
        e.shared_blks_hit ?? "",
        e.shared_blks_read ?? "",
        e.seen_in_traces ? "true" : "false"
      ];
    });
    downloadCsv("pgstat", buildCsv(header, rows));
  }

  function diffFindingMatchBlob(f) {
    return [
      f.severity, f.type || f.finding_type, f.service, f.source_endpoint,
      f.pattern && f.pattern.template
    ].join(" ");
  }
  function exportDiffCsv() {
    if (!hasDiff) return;
    var term = searchTermFor("diff");
    var header = [
      "section", "severity", "type", "service", "endpoint", "template",
      "occurrences", "before_severity", "after_severity",
      "before_io_ops", "after_io_ops", "delta"
    ];
    var rows = [];
    (diffData.new_findings || []).forEach(function (f) {
      if (!matchesSearch(diffFindingMatchBlob(f), term)) return;
      var p = f.pattern || {};
      rows.push([
        "new", f.severity || "", f.type || f.finding_type || "",
        f.service || "", f.source_endpoint || "", p.template || "",
        p.occurrences ?? "",
        "", "", "", "", ""
      ]);
    });
    (diffData.resolved_findings || []).forEach(function (f) {
      if (!matchesSearch(diffFindingMatchBlob(f), term)) return;
      var p = f.pattern || {};
      rows.push([
        "resolved", f.severity || "", f.type || f.finding_type || "",
        f.service || "", f.source_endpoint || "", p.template || "",
        p.occurrences ?? "",
        "", "", "", "", ""
      ]);
    });
    (diffData.severity_changes || []).forEach(function (c) {
      var f = c.finding || {};
      if (!matchesSearch(diffFindingMatchBlob(f), term)) return;
      var p = f.pattern || {};
      rows.push([
        "severity_change", "", f.type || f.finding_type || "",
        f.service || "", f.source_endpoint || "", p.template || "",
        p.occurrences ?? "",
        c.before_severity || "", c.after_severity || "",
        "", "", ""
      ]);
    });
    (diffData.endpoint_metric_deltas || []).forEach(function (d) {
      var blob = [d.service, d.endpoint].join(" ");
      if (!matchesSearch(blob, term)) return;
      rows.push([
        "endpoint_delta", "", "",
        d.service || "", d.endpoint || "", "",
        "", "", "",
        d.before_io_ops ?? "",
        d.after_io_ops ?? "",
        d.delta ?? ""
      ]);
    });
    downloadCsv("diff", buildCsv(header, rows));
  }

  function exportCorrelationsCsv() {
    var term = searchTermFor("correlations");
    var header = [
      "service_a", "type_a", "template_a",
      "service_b", "type_b", "template_b",
      "confidence", "co_occurrence_count",
      "source_total_occurrences", "median_lag_ms",
      "first_seen", "last_seen"
    ];
    var rows = correlations.filter(function (c) {
      var src = c.source || {};
      var tgt = c.target || {};
      var blob = [
        src.service, src.finding_type, tgt.service, tgt.finding_type
      ].join(" ");
      return matchesSearch(blob, term);
    }).map(function (c) {
      var s = c.source || {};
      var t = c.target || {};
      return [
        s.service || "", s.finding_type || "", s.template || "",
        t.service || "", t.finding_type || "", t.template || "",
        c.confidence ?? "",
        c.co_occurrence_count ?? "",
        c.source_total_occurrences ?? "",
        c.median_lag_ms ?? "",
        c.first_seen || "", c.last_seen || ""
      ];
    });
    downloadCsv("correlations", buildCsv(header, rows));
  }

  // -------- deep-link hash --------
  // Shape: `#<tab>[&k=v[&k=v...]]`. Medium-scope: tab, search term,
  // pg_stat ranking slug, findings severity chip, findings service chip.
  // Writes replace history entries (no back/forward pollution).
  var RANKING_SLUGS = ["total_time", "calls", "mean_time", "io_blocks"];
  function rankingSlugForIndex(idx) {
    return RANKING_SLUGS[idx] || String(idx);
  }
  function rankingIndexForSlug(slug) {
    if (RANKING_SLUGS.includes(slug)) return RANKING_SLUGS.indexOf(slug);
    var n = Number.parseInt(slug, 10);
    return Number.isFinite(n) ? n : -1;
  }

  // Keys accepted from the URL fragment. Anything outside this set is
  // ignored so a malformed or malicious hash cannot override the tab
  // via a later `tab=` pair, inject arbitrary properties onto `state`,
  // or confuse `applyHash`. The tab itself is positional (first
  // token), not a key=value pair. Stored as a Set so existence checks
  // are O(1) regardless of how many keys land here in the future.
  var HASH_KEYS = new Set(["search", "ranking", "severity", "service"]);
  function readHash() {
    var raw = (location.hash || "").replace(/^#/, "");
    if (!raw) return null;
    var parts = raw.split("&");
    var state = { tab: parts.shift() || null };
    parts.forEach(function (p) {
      if (!p) return;
      var eq = p.indexOf("=");
      if (eq < 0) return;
      var k = p.slice(0, eq);
      if (!HASH_KEYS.has(k)) return;
      var v = p.slice(eq + 1);
      try {
        v = decodeURIComponent(v);
      } catch {
        // Malformed percent-encoding in a shared URL, keep the raw
        // value so downstream string compares still work.
        return;
      }
      state[k] = v;
    });
    return state;
  }

  function currentStateForHash() {
    var state = { tab: currentTab };
    if (currentTab && SEARCHABLE_TABS[currentTab]) {
      var term = searchTermFor(currentTab);
      if (term) state.search = term;
    }
    if (currentTab === "findings") {
      if (filterState.severity) state.severity = filterState.severity;
      if (filterState.service) state.service = filterState.service;
    }
    if (currentTab === "pgstat") {
      state.ranking = rankingSlugForIndex(activeRankingIndex);
    }
    return state;
  }

  function encodeHashFromState(state) {
    if (!state || !state.tab) return "";
    var parts = [state.tab];
    ["search", "ranking", "severity", "service"].forEach(function (k) {
      var v = state[k];
      if (v !== null && v !== undefined && v !== "") {
        parts.push(k + "=" + encodeURIComponent(String(v)));
      }
    });
    return parts.join("&");
  }

  // Guards against applyHash / writeHash ping-pong. The hashchange
  // listener compares this against location.hash to tell user-driven
  // changes from our own writeHash calls.
  var _lastWrittenHash = null;

  function writeHash(state) {
    var hashStr = encodeHashFromState(state);
    var full = hashStr ? "#" + hashStr : "";
    try {
      history.replaceState(null, "", full || location.pathname + location.search);
      _lastWrittenHash = hashStr;
    } catch {
      // Old browsers without history.replaceState: fall back to a
      // direct hash assignment. Pushes one history entry per change,
      // the lesser of two evils.
      location.hash = hashStr;
      _lastWrittenHash = hashStr;
    }
  }

  // Debounce writeHash to smooth keystrokes in search inputs and bursty
  // chip clicks; 200ms is barely perceptible and keeps history quiet.
  var hashWriteTimer = null;
  function scheduleHashWrite() {
    if (hashWriteTimer) clearTimeout(hashWriteTimer);
    hashWriteTimer = setTimeout(function () {
      hashWriteTimer = null;
      writeHash(currentStateForHash());
    }, 200);
  }

  function applyHash(state) {
    if (!state || !state.tab) return false;
    if (!tabIsRegistered(state.tab)) return false;
    // Apply filter state before switching so the target tab already
    // shows the correct view. Severity / service chips modify
    // filterState and re-render the findings list.
    if (state.tab === "findings") {
      filterState.severity = null;
      filterState.service = null;
      if (state.severity === "critical" || state.severity === "warning") {
        filterState.severity = state.severity;
      }
      if (state.service) filterState.service = state.service;
      syncFilterChips();
      resetShownCount();
      renderFindingsList();
    }
    if (state.tab === "pgstat") {
      var idx = rankingIndexForSlug(state.ranking || "");
      if (idx >= 0 && idx < pgStatRankings.length) {
        // Single source of truth: selectPgStatRanking handles both the
        // sessionStorage write and the early-return when idx already
        // matches activeRankingIndex.
        selectPgStatRanking(idx);
      }
    }
    switchTab(state.tab);
    // Restore the search input for the target tab after tab switch,
    // which runs `clearAllSearchFilters`. Reapply the filter so rows
    // match the decoded search term.
    if (state.search && SEARCHABLE_TABS[state.tab]) {
      var cfg = SEARCHABLE_TABS[state.tab];
      var input = document.getElementById(cfg.inputId);
      if (input) {
        input.style.display = "block";
        input.value = state.search;
        applySearchFilter(cfg);
      }
    }
    return true;
  }

  // -------- cheatsheet modal --------
  var CHEATSHEET_ROWS = [
    ["j", "Move finding selection down"],
    ["k", "Move finding selection up"],
    ["Enter", "Open selected finding in Explain"],
    ["Esc", "Close help, close search, clear filters, back from Explain"],
    ["/", "Open filter search for active tab"],
    ["g f", "Go to Findings"],
    ["g e", "Go to Explain (if available)"],
    ["g p", "Go to pg_stat (if available)"],
    ["g d", "Go to Diff (if available)"],
    ["g c", "Go to Correlations (if available)"],
    ["g r", "Go to GreenOps (if available)"],
    ["?", "Show this cheatsheet"]
  ];
  function populateCheatsheet() {
    var body = document.getElementById("cheatsheet-body");
    if (!body) return;
    body.textContent = "";
    CHEATSHEET_ROWS.forEach(function (row) {
      var tr = document.createElement("tr");
      var tdK = document.createElement("td");
      var kbd = el("span", "ps-kbd", row[0]);
      tdK.appendChild(kbd);
      tr.appendChild(tdK);
      tr.appendChild(el("td", null, row[1]));
      body.appendChild(tr);
    });
  }
  // Native <dialog> element: the browser manages the backdrop, the
  // focus trap, and the Esc-to-close behavior. We only layer focus
  // restoration and backdrop-click-to-close on top.
  function isCheatsheetOpen() {
    var dlg = document.getElementById("cheatsheet");
    return !!(dlg && dlg.open);
  }
  // Stash the element that owned focus when the cheatsheet opened so
  // closing restores the j/k cursor position in the Findings list (or
  // wherever the user came from). Cleared on close.
  var cheatsheetPriorFocus = null;
  function openCheatsheet() {
    var dlg = document.getElementById("cheatsheet");
    if (!dlg || dlg.open) return;
    cheatsheetPriorFocus = document.activeElement;
    dlg.showModal();
    var closeBtn = document.getElementById("cheatsheet-close");
    if (closeBtn) closeBtn.focus();
  }
  function closeCheatsheet() {
    var dlg = document.getElementById("cheatsheet");
    if (dlg && dlg.open) dlg.close();
  }
  function toggleCheatsheet() {
    if (isCheatsheetOpen()) closeCheatsheet();
    else openCheatsheet();
  }

  function anyFilterChipActive() {
    return !!(filterState.severity || filterState.service);
  }
  function clearFilterChips() {
    filterState.severity = null;
    filterState.service = null;
    syncFilterChips();
    resetShownCount();
    renderFindingsList();
  }

  // -------- keyboard --------
  function isSearchInputFocused() {
    var active = document.activeElement;
    return !!(active && active.tagName === "INPUT" && active.classList.contains("ps-search"));
  }
  function isTextInputFocused() {
    var a = document.activeElement;
    if (!a) return false;
    var tag = a.tagName;
    if (tag === "INPUT" || tag === "TEXTAREA") return true;
    return a.isContentEditable === true;
  }
  /// Escape ladder: close cheatsheet, close search, leave Explain,
  /// clear filter chips. Each tier returns as soon as it acts.
  function handleEscape(ev) {
    if (isCheatsheetOpen()) {
      closeCheatsheet();
      ev.preventDefault();
      return;
    }
    if (isSearchInputFocused()) {
      closeSearch(document.activeElement);
      ev.preventDefault();
      return;
    }
    if (currentTab === "explain") {
      switchTab("findings");
      return;
    }
    if (currentTab === "findings" && anyFilterChipActive()) {
      clearFilterChips();
      scheduleHashWrite();
      ev.preventDefault();
    }
  }
  /// Slash handling: open the active tab's search input.
  function handleSlash(ev) {
    if (isSearchInputFocused() || !SEARCHABLE_TABS[currentTab]) return;
    openSearchForActiveTab();
    ev.preventDefault();
  }
  /// j / k / enter navigation on the Findings list.
  function handleFindingsNav(ev) {
    if (visibleFindings.length === 0) return;
    if (ev.key === "j") {
      selectedIndex = (selectedIndex + 1) % visibleFindings.length;
      syncSelection();
      scrollSelectedIntoView();
    } else if (ev.key === "k") {
      selectedIndex = (selectedIndex - 1 + visibleFindings.length) % visibleFindings.length;
      syncSelection();
      scrollSelectedIntoView();
    } else if (ev.key === "Enter" && selectedIndex >= 0) {
      openExplain(visibleFindings[selectedIndex]);
    }
    ev.preventDefault();
  }
  // g-prefixed tab shortcuts. `g` alone arms a 1000ms window; the next
  // key consumes it regardless of whether it matches a tab. Hidden tabs
  // are a silent no-op (no feedback, no flash).
  var pendingGTimer = null;
  var G_MAPPING = {
    f: "findings", e: "explain", p: "pgstat",
    d: "diff", c: "correlations", r: "green"
  };
  function clearPendingG() {
    if (pendingGTimer) {
      clearTimeout(pendingGTimer);
      pendingGTimer = null;
    }
  }
  function handleGPrefix(ev) {
    // Ignore OS-level key autorepeat: holding `g` must not rearm the
    // prefix, and holding the second letter must not fire the tab
    // switch twice. The dispatcher continues past this handler so
    // autorepeat on j/k/Enter still drives Findings navigation.
    if (ev.repeat) return false;
    if (ev.key === "g" && pendingGTimer === null) {
      pendingGTimer = setTimeout(function () { pendingGTimer = null; }, 1000);
      return true;
    }
    if (pendingGTimer !== null) {
      clearPendingG();
      var target = G_MAPPING[ev.key];
      if (target && tabIsRegistered(target)) {
        switchTab(target);
        ev.preventDefault();
      }
      return true;
    }
    return false;
  }
  document.addEventListener("keydown", function (ev) {
    if (ev.key === "Escape") { handleEscape(ev); return; }
    // `?` opens the cheatsheet unless a text input is consuming it.
    if (ev.key === "?" && !isTextInputFocused()) {
      toggleCheatsheet();
      ev.preventDefault();
      return;
    }
    if (isCheatsheetOpen()) return;
    if (ev.key === "/") { handleSlash(ev); return; }
    if (isSearchInputFocused()) return;
    if (isTextInputFocused()) return;
    if (handleGPrefix(ev)) return;
    if (currentTab !== "findings") return;
    if (ev.key === "j" || ev.key === "k" || ev.key === "Enter") {
      handleFindingsNav(ev);
    }
  });
  function scrollSelectedIntoView() {
    var rows = document.querySelectorAll("#findings-list .ps-row");
    if (selectedIndex >= 0 && selectedIndex < rows.length) {
      rows[selectedIndex].scrollIntoView({ block: "nearest" });
    }
  }

  document.getElementById("pgstat-drill-clear").addEventListener("click", clearPgStatDrill);

  // -------- boot helpers --------
  // Each helper owns one slice of boot work so the IIFE body stays
  // linear and cognitive complexity stays bounded. Sonar flags the
  // IIFE itself when too many branches accumulate at this level.

  function registerAllTabs() {
    registerTab("findings", "Findings", function () { return findings.length; });
    registerTab("explain", "Explain", null);
    if (hasPgStat) {
      registerTab("pgstat", "pg_stat", function () {
        // Badge shows the currently-active ranking's entry count. Every
        // ranking contains the same top-N entries, just reordered, so
        // the number is identical across rankings (see rank_pg_stat).
        return activePgStatEntries().length;
      });
    }
    if (hasDiff) {
      registerTab("diff", "Diff", function () {
        return (
          (diffData.new_findings || []).length + (diffData.resolved_findings || []).length
        );
      });
    }
    if (hasCorrelations) {
      registerTab("correlations", "Correlations", function () {
        return correlations.length;
      });
    }
    if (hasGreen) registerTab("green", "GreenOps", null);
    if (payload.daemon && payload.daemon.url) {
      registerTab("acknowledgments", "Acks", function () {
        return liveAcksCount();
      });
    }
    renderTabs();
  }

  function restorePersistedPgStatRanking() {
    // Restore the persisted ranking before the first render so the
    // initial table already reflects the user's last choice. A hash
    // with a ranking slug overrides this, inside `applyHash`.
    if (!hasPgStat) return;
    var storedRanking = sessionGet(STORAGE_KEYS.pgstatRanking);
    if (!storedRanking) return;
    var storedIdx = rankingIndexForSlug(storedRanking);
    if (storedIdx >= 0 && storedIdx < pgStatRankings.length) {
      activeRankingIndex = storedIdx;
    }
  }

  function renderAllPanels() {
    renderTrimBanner();
    renderFindingsMetrics();
    renderQualityGateRules();
    renderFilterChips();
    restorePersistedPgStatRanking();
    renderFindingsList();
    if (hasPgStat) renderPgStatPanel();
    if (hasDiff) renderDiffPanel();
    if (hasCorrelations) renderCorrelationsPanel();
    if (hasGreen) renderGreenPanel();
  }

  function wireCheatsheetDialog() {
    var closeBtn = document.getElementById("cheatsheet-close");
    if (closeBtn) closeBtn.addEventListener("click", closeCheatsheet);
    var dlg = document.getElementById("cheatsheet");
    if (!dlg) return;
    // Native <dialog> manages Esc-to-close and the focus trap for us.
    // We only restore focus to wherever it was before the dialog
    // opened, on the close event (covers both our manual close and
    // the native Esc path).
    dlg.addEventListener("close", restorePriorFocus);
    // Click outside the dialog's content area closes it. With
    // showModal(), clicks on the backdrop hit the dialog itself,
    // clicks on any descendant hit that descendant.
    dlg.addEventListener("click", function (ev) {
      if (ev.target === dlg) closeCheatsheet();
    });
  }

  function restorePriorFocus() {
    var prior = cheatsheetPriorFocus;
    cheatsheetPriorFocus = null;
    if (!prior || typeof prior.focus !== "function") return;
    try {
      prior.focus();
    } catch {
      // Prior element was removed while the dialog was open (most
      // likely a re-render). Silent fallback: the browser picks a
      // sensible default.
      return;
    }
  }

  function wireShowMoreButton() {
    var btn = document.getElementById("findings-show-more");
    if (!btn) return;
    btn.addEventListener("click", function () {
      shownCount += LIST_CAP;
      renderFindingsList();
    });
  }

  function wireExportButtons() {
    var exportHandlers = {
      findings: exportFindingsCsv,
      pgstat: exportPgStatCsv,
      diff: exportDiffCsv,
      correlations: exportCorrelationsCsv
    };
    Object.keys(exportHandlers).forEach(function (tabKey) {
      var btn = document.getElementById(tabKey + "-export");
      if (btn) btn.addEventListener("click", exportHandlers[tabKey]);
    });
  }

  // -------- copy-link buttons --------
  function copyCurrentLink(btn) {
    // Capture the label once so repeat clicks inside the flash window
    // do not end up restoring "Copied" as the baseline.
    if (!btn.dataset.baseLabel) btn.dataset.baseLabel = btn.textContent;
    var baseLabel = btn.dataset.baseLabel;
    var href = location.href;

    function flashCopied() {
      btn.textContent = "Copied";
      if (btn._copyFlashTimer) clearTimeout(btn._copyFlashTimer);
      btn._copyFlashTimer = setTimeout(function () {
        btn._copyFlashTimer = null;
        btn.textContent = baseLabel;
      }, 1500);
    }

    // file:// origins and older browsers reject navigator.clipboard,
    // so fall back to a throwaway textarea + execCommand.
    function fallbackCopy() {
      try {
        var ta = document.createElement("textarea");
        ta.value = href;
        ta.setAttribute("readonly", "");
        ta.style.position = "absolute";
        ta.style.left = "-9999px";
        document.body.appendChild(ta);
        ta.select();
        var ok = document.execCommand("copy");
        ta.remove();
        if (ok) {
          flashCopied();
        } else {
          console.error("copyCurrentLink: execCommand('copy') returned false");
        }
      } catch (err) {
        console.error("copyCurrentLink fallback failed", err);
      }
    }

    if (navigator.clipboard && typeof navigator.clipboard.writeText === "function") {
      navigator.clipboard.writeText(href).then(flashCopied, function (err) {
        console.error("navigator.clipboard.writeText rejected", err);
        fallbackCopy();
      });
    } else {
      fallbackCopy();
    }
  }

  function wireCopyLinkButtons() {
    ["findings", "pgstat", "diff", "correlations"].forEach(function (tabKey) {
      var btn = document.getElementById(tabKey + "-copy-link");
      if (!btn) return;
      btn.addEventListener("click", function () {
        copyCurrentLink(btn);
      });
    });
  }

  function applyInitialHashOrWrite() {
    // Apply the deep-link hash last so it can override the initial
    // ranking / filter chips / tab selection derived above. Falls
    // through silently when the hash is missing, malformed, or points
    // to a tab that is not registered in this report.
    var initialHash = readHash();
    if (applyHash(initialHash)) return;
    // No hash: emit the current state so sharing the URL immediately
    // after load produces a self-describing link.
    writeHash(currentStateForHash());
  }

  function wireHashChangeListener() {
    // Skip events triggered by our own writeHash replaceState, apply
    // only real user-driven changes.
    globalThis.addEventListener("hashchange", function () {
      var raw = (location.hash || "").replace(/^#/, "");
      if (raw === _lastWrittenHash) return;
      applyHash(readHash());
    });
  }

  // -------- live mode (since 0.5.23) --------
  // The whole live-mode block stays inside the existing IIFE so it
  // shares scope with `payload`, `findings`, `renderTabs`,
  // `renderFindingsList` and the `el`/`setAttr` helpers. Running
  // outside would re-parse the `<script id="report-data">` block, a
  // pure overhead.
  //
  // Activation: only when the embedded payload carries
  // `payload.daemon.url`. Static reports (the 0.5.22 default) never
  // touch this code path.
  //
  // Security:
  // - The X-API-Key sits in `liveState.apiKey` and `sessionStorage`.
  //   It is never copied into the DOM as text, never logged, never
  //   shipped in a `data-*` attribute.
  // - All user-facing rendering is `textContent`, never `innerHTML`.
  // - `connect-src` in the CSP whitelists only the daemon URL the
  //   operator passed to `--daemon-url`, validated by the CLI.
  var DAEMON_API_KEY_STORAGE = "perf-sentinel.daemon.api-key";
  var DAEMON_ACKS_CAP = 1000;
  var DAEMON_FETCH_TIMEOUT_MS = 10000;

  var liveState = {
    enabled: false,
    daemonUrl: null,
    apiKey: null,
    acks: [],
    acksBySig: Object.create(null),
    pendingAuthRetry: null,
    activeFindingsAbort: null
  };

  function liveAcksCount() {
    return liveState.acks.length;
  }

  function isLiveEnabled() {
    return liveState.enabled;
  }

  function setApiKey(value) {
    // Guard against an empty / whitespace-only value reaching live
    // state. `submitAuthModal` already trims and rejects empty
    // before getting here, but keep this helper safe to call from
    // anywhere; an accidental empty write would put liveState and
    // sessionStorage into an asymmetric state where one side reads
    // truthy and the other falsy.
    if (typeof value !== "string" || value.trim() === "") {
      clearApiKey();
      return;
    }
    liveState.apiKey = value;
    sessionSet(DAEMON_API_KEY_STORAGE, value);
  }

  function clearApiKey() {
    liveState.apiKey = null;
    // Use removeItem rather than `sessionSet(KEY, "")` so a debugger
    // inspecting sessionStorage does not see a stale empty entry that
    // could mistake for "key was set, then someone null'd it".
    try {
      globalThis.sessionStorage.removeItem(DAEMON_API_KEY_STORAGE);
    } catch {
      // sessionStorage can throw on some hardened browsers (Safari
      // Private Browsing pre-15, embedded WebViews). Fall back to the
      // sessionSet pattern so the in-memory state stays consistent.
      sessionSet(DAEMON_API_KEY_STORAGE, "");
    }
  }

  function liveDaemonBase() {
    return liveState.daemonUrl || "";
  }

  function fetchWithAuth(path, opts) {
    var options = opts || {};
    var headers = {};
    if (options.headers) {
      Object.keys(options.headers).forEach(function (k) {
        headers[k] = options.headers[k];
      });
    }
    headers["Accept"] = "application/json";
    if (liveState.apiKey) {
      headers["X-API-Key"] = liveState.apiKey;
    }
    // Bound every request with an AbortController so a hung daemon
    // does not leave a request pending until the browser's default
    // network timeout (which is multi-minute in Chrome).
    var ctrl = (typeof AbortController === "function") ? new AbortController() : null;
    var init = {
      method: options.method || "GET",
      headers: headers,
      credentials: "omit",
      mode: "cors"
    };
    if (options.body !== undefined && options.body !== null) {
      init.body = options.body;
    }
    if (ctrl) {
      init.signal = ctrl.signal;
    } else if (options.signal) {
      init.signal = options.signal;
    }
    var timer = ctrl ? setTimeout(function () { ctrl.abort(); }, DAEMON_FETCH_TIMEOUT_MS) : null;
    return fetch(liveDaemonBase() + path, init).finally(function () {
      if (timer) clearTimeout(timer);
    });
  }

  function setDaemonStatus(state, label) {
    var dot = document.getElementById("ps-daemon-dot");
    var text = document.getElementById("ps-daemon-status-text");
    if (dot) {
      dot.classList.remove("connected", "disconnected", "unauthorized");
      dot.classList.add(state);
    }
    if (text) text.textContent = label;
  }

  function showToast(kind, message) {
    var existing = document.getElementById("ps-toast");
    if (existing) existing.remove();
    var t = el("div", "ps-toast " + (kind || ""), message);
    setAttr(t, "id", "ps-toast");
    setAttr(t, "role", kind === "error" ? "alert" : "status");
    document.body.appendChild(t);
    setTimeout(function () {
      t.remove();
    }, 5000);
  }

  function pingStatus() {
    return fetchWithAuth("/api/status").then(function (r) {
      if (r.status === 200) {
        setDaemonStatus("connected", "Connected");
        return true;
      }
      if (r.status === 401) {
        // Stale key: a daemon-side rotation invalidated whatever we
        // stored. Drop the cached value so the next write call opens
        // the auth modal cleanly instead of retrying with the bad
        // key.
        if (liveState.apiKey) {
          clearApiKey();
          syncLogoutButtonVisibility();
        }
        setDaemonStatus("unauthorized", "Authentication required");
        return false;
      }
      setDaemonStatus("disconnected", "HTTP " + r.status);
      return false;
    }).catch(function () {
      setDaemonStatus("disconnected", "Unreachable");
      return false;
    });
  }

  function clearAcksState() {
    liveState.acks = [];
    liveState.acksBySig = Object.create(null);
  }

  function applyAcksPayload(data) {
    var arr = Array.isArray(data) ? data : [];
    liveState.acks = arr;
    liveState.acksBySig = Object.create(null);
    for (var a of arr) {
      if (a && a.signature) liveState.acksBySig[a.signature] = a;
    }
  }

  function handleAcksResponse(r) {
    if (!r.ok) {
      if (r.status === 401) {
        setDaemonStatus("unauthorized", "Authentication required");
      }
      clearAcksState();
      return null;
    }
    return r.json().then(applyAcksPayload);
  }

  function fetchAcks() {
    return fetchWithAuth("/api/acks").then(handleAcksResponse).catch(clearAcksState);
  }

  function renderAcksPanel() {
    var body = document.getElementById("acks-body");
    var empty = document.getElementById("acks-empty");
    var footer = document.getElementById("acks-footer");
    if (!body) return;
    body.textContent = "";
    if (liveState.acks.length === 0) {
      if (empty) empty.style.display = "";
      if (footer) footer.textContent = "";
      return;
    }
    if (empty) empty.style.display = "none";
    liveState.acks.forEach(function (a) {
      body.appendChild(buildAckRow(a));
    });
    if (footer) {
      var note = liveState.acks.length + " active";
      if (liveState.acks.length >= DAEMON_ACKS_CAP) {
        note += " (showing up to " + DAEMON_ACKS_CAP + ", consult the daemon for the full list)";
      }
      note += ". TOML CI acks are not listed here, see .perf-sentinel-acknowledgments.toml.";
      footer.textContent = note;
    }
  }

  function buildAckRow(ack) {
    var tr = document.createElement("tr");
    var sig = document.createElement("td");
    sig.textContent = ack.signature || "-";
    tr.appendChild(sig);
    var by = document.createElement("td");
    by.textContent = ack.by || "-";
    tr.appendChild(by);
    var reason = document.createElement("td");
    reason.textContent = ack.reason || "";
    tr.appendChild(reason);
    var expires = document.createElement("td");
    expires.textContent = ack.expires_at ? ack.expires_at : "never";
    tr.appendChild(expires);
    var act = document.createElement("td");
    var btn = el("button", "ps-fin-action-btn revoke", "Revoke");
    btn.type = "button";
    setAttr(btn, "data-sig", ack.signature || "");
    btn.addEventListener("click", function () {
      revokeAck(ack.signature);
    });
    act.appendChild(btn);
    tr.appendChild(act);
    return tr;
  }

  function syncFindingActionButtons() {
    if (!isLiveEnabled()) return;
    var rows = document.querySelectorAll("#findings-list .ps-row[data-sig]");
    rows.forEach(function (row) {
      var sig = row.dataset.sig || "";
      if (!sig) return;
      var btn = row.querySelector(".ps-fin-action-btn");
      if (!btn) return;
      var isAcked = !!liveState.acksBySig[sig];
      btn.textContent = isAcked ? "Revoke" : "Ack";
      setAttr(btn, "data-action", isAcked ? "revoke" : "ack");
      btn.classList.toggle("revoke", isAcked);
      // Replace the listener on each render. Cheaper than a single
      // event-delegation handler that has to walk back up to find the
      // signature, given we only have at most a few hundred rows in
      // the visible window.
      btn.onclick = function (event) {
        event.stopPropagation();
        if (isAcked) revokeAck(sig);
        else openAckModal(sig);
      };
    });
    // Re-honor the `Show acknowledged` toggle once the action buttons
    // (and therefore the latest `acksBySig` mapping) are settled. The
    // boot path otherwise renders acked findings visible until the
    // user toggles the checkbox.
    applyAckedFilter();
  }

  function openAckModal(sig) {
    var dlg = document.getElementById("ack-modal");
    var sigInput = document.getElementById("ack-modal-sig");
    var reasonInput = document.getElementById("ack-modal-reason");
    var byInput = document.getElementById("ack-modal-by");
    var err = document.getElementById("ack-modal-error");
    if (!dlg || !sigInput || !reasonInput) return;
    sigInput.value = sig;
    reasonInput.value = "";
    if (byInput) byInput.value = "";
    if (err) { err.style.display = "none"; err.textContent = ""; }
    if (typeof dlg.showModal === "function") dlg.showModal();
  }

  function closeAckModal() {
    var dlg = document.getElementById("ack-modal");
    if (dlg && typeof dlg.close === "function") dlg.close();
  }

  function expiresIsoFromShortcut(value) {
    if (!value) return null;
    var now = new Date();
    var hours = 0;
    if (value === "24h") hours = 24;
    else if (value === "7d") hours = 24 * 7;
    else if (value === "30d") hours = 24 * 30;
    else return null;
    var dt = new Date(now.getTime() + hours * 3600 * 1000);
    return dt.toISOString();
  }

  function submitAckModal(event) {
    event.preventDefault();
    var sig = (document.getElementById("ack-modal-sig") || {}).value || "";
    var reason = ((document.getElementById("ack-modal-reason") || {}).value || "").trim();
    var expiresValue = (document.getElementById("ack-modal-expires") || {}).value || "";
    var by = ((document.getElementById("ack-modal-by") || {}).value || "").trim();
    var err = document.getElementById("ack-modal-error");
    if (!sig) return;
    if (!reason) {
      if (err) { err.textContent = "Reason is required."; err.style.display = "block"; }
      return;
    }
    var body = { reason: reason };
    if (by) body.by = by;
    var expiresIso = expiresIsoFromShortcut(expiresValue);
    if (expiresIso) body.expires_at = expiresIso;
    postAck(sig, body, err);
  }

  function postAck(sig, body, errEl) {
    var path = "/api/findings/" + encodeURIComponent(sig) + "/ack";
    fetchWithAuth(path, {
      method: "POST",
      headers: { "Content-Type": "application/json" },
      body: JSON.stringify(body)
    }).then(function (r) {
      if (r.status === 201) {
        closeAckModal();
        showToast("success", "Acknowledged.");
        return refreshLiveState();
      }
      return handleAuthRetry(r, function () { postAck(sig, body, errEl); }, errEl, "create");
    }).catch(function () {
      if (errEl) { errEl.textContent = "Network error reaching the daemon."; errEl.style.display = "block"; }
    });
  }

  function revokeAck(sig) {
    if (!sig) return;
    if (!globalThis.confirm || !globalThis.confirm("Revoke acknowledgment for " + sig + "?")) return;
    var path = "/api/findings/" + encodeURIComponent(sig) + "/ack";
    fetchWithAuth(path, { method: "DELETE" }).then(function (r) {
      if (r.status === 204) {
        showToast("success", "Acknowledgment revoked.");
        return refreshLiveState();
      }
      return handleAuthRetry(r, function () { revokeAck(sig); }, null, "revoke");
    }).catch(function () {
      showToast("error", "Network error reaching the daemon.");
    });
  }

  function handleAuthRetry(response, retry, errEl, opLabel) {
    if (response.status === 401) {
      liveState.pendingAuthRetry = retry;
      // Tell apart the first 401 (no key cached) from a retry-after-
      // wrong-key 401 so the user gets feedback on the second attempt.
      // Drop the bad key on the way so the next request goes out
      // unauthenticated and the auth flow restarts cleanly.
      var hadKey = liveState.apiKey !== null && liveState.apiKey !== "";
      if (hadKey) {
        clearApiKey();
        syncLogoutButtonVisibility();
      }
      openAuthModal(hadKey ? "Invalid API key, please try again." : null);
      return;
    }
    var msg = "HTTP " + response.status + " on " + opLabel;
    if (errEl) { errEl.textContent = msg; errEl.style.display = "block"; }
    else showToast("error", msg);
  }

  function openAuthModal(errorMessage) {
    var dlg = document.getElementById("auth-modal");
    var keyInput = document.getElementById("auth-modal-key");
    var err = document.getElementById("auth-modal-error");
    if (!dlg) return;
    if (keyInput) keyInput.value = "";
    if (err) {
      if (errorMessage) {
        err.textContent = errorMessage;
        err.style.display = "block";
      } else {
        err.style.display = "none";
        err.textContent = "";
      }
    }
    if (typeof dlg.showModal === "function") dlg.showModal();
    if (keyInput) {
      // Defer focus until after the dialog has actually opened.
      setTimeout(function () { keyInput.focus(); }, 0);
    }
  }

  function closeAuthModal() {
    var dlg = document.getElementById("auth-modal");
    if (dlg && typeof dlg.close === "function") dlg.close();
  }

  function submitAuthModal(event) {
    event.preventDefault();
    var keyInput = document.getElementById("auth-modal-key");
    var err = document.getElementById("auth-modal-error");
    var k = ((keyInput || {}).value || "").trim();
    if (!k) {
      if (err) { err.textContent = "API key is required."; err.style.display = "block"; }
      return;
    }
    setApiKey(k);
    syncLogoutButtonVisibility();
    closeAuthModal();
    var retry = liveState.pendingAuthRetry;
    liveState.pendingAuthRetry = null;
    pingStatus();
    if (typeof retry === "function") retry();
  }

  function refreshLiveState() {
    return Promise.all([pingStatus(), fetchAcks()]).then(function () {
      renderAcksPanel();
      syncFindingActionButtons();
      syncAcksTabBadge();
    });
  }

  function syncAcksTabBadge() {
    // The tab badge is rendered once at boot via `renderTabs` from the
    // `countFn` we registered for "acknowledgments". After an
    // ack/revoke that changed `liveState.acks.length`, the badge is
    // stale until the user switches tabs (which would re-trigger
    // nothing since `renderTabs` is not re-run). Patch the DOM
    // directly: the cheapest correct refresh path. Recreate the
    // badge span when missing so a deferred-fetch boot path (badge
    // not created because countFn returned null) still surfaces the
    // count once acks load.
    var btn = document.getElementById("tab-acknowledgments");
    if (!btn) return;
    var count = liveAcksCount();
    if (count === null || count === undefined) return;
    var badge = btn.querySelector(".ps-badge");
    if (badge) {
      badge.textContent = String(count);
    } else {
      btn.appendChild(document.createTextNode(" "));
      btn.appendChild(el("span", "ps-badge", String(count)));
    }
  }

  function wireRefreshButton() {
    var btn = document.getElementById("ps-refresh-btn");
    if (!btn) return;
    btn.addEventListener("click", function () {
      btn.disabled = true;
      refreshLiveState().then(function () { btn.disabled = false; });
    });
  }

  function syncLogoutButtonVisibility() {
    var btn = document.getElementById("ps-logout-btn");
    if (!btn) return;
    if (liveState.apiKey) btn.hidden = false;
    else btn.hidden = true;
  }

  function wireLogoutButton() {
    var btn = document.getElementById("ps-logout-btn");
    if (!btn) return;
    btn.addEventListener("click", function () {
      clearApiKey();
      syncLogoutButtonVisibility();
      showToast("success", "API key cleared from this tab.");
      pingStatus();
    });
  }

  function applyAckedFilter() {
    // Hide acked findings when the toggle is unchecked. Idempotent
    // and called both from the change handler AND from
    // `syncFindingActionButtons` so the initial state is honored at
    // boot (otherwise the user sees acked findings until they click
    // the toggle, even though "Show acknowledged" is unchecked).
    var input = document.getElementById("findings-include-acked");
    if (!input) return;
    var hideAcked = !input.checked;
    var rows = document.querySelectorAll("#findings-list .ps-row[data-sig]");
    rows.forEach(function (row) {
      var sig = row.dataset.sig || "";
      var isAcked = !!liveState.acksBySig[sig];
      if (hideAcked && isAcked) row.style.display = "none";
      else row.style.display = "";
    });
  }

  function wireIncludeAckedToggle() {
    var input = document.getElementById("findings-include-acked");
    if (!input) return;
    input.addEventListener("change", applyAckedFilter);
  }

  function wireAuthModal() {
    var form = document.getElementById("auth-modal-form");
    var cancel = document.getElementById("auth-modal-cancel");
    var close = document.getElementById("auth-modal-close");
    if (form) form.addEventListener("submit", submitAuthModal);
    if (cancel) cancel.addEventListener("click", function () {
      closeAuthModal();
      liveState.pendingAuthRetry = null;
      setDaemonStatus("unauthorized", "Authentication required");
    });
    if (close) close.addEventListener("click", function () {
      closeAuthModal();
      liveState.pendingAuthRetry = null;
    });
  }

  function wireAckModal() {
    var form = document.getElementById("ack-modal-form");
    var cancel = document.getElementById("ack-modal-cancel");
    var close = document.getElementById("ack-modal-close");
    if (form) form.addEventListener("submit", submitAckModal);
    if (cancel) cancel.addEventListener("click", closeAckModal);
    if (close) close.addEventListener("click", closeAckModal);
  }

  function stripTrailingSlashes(s) {
    // Linear scan from the end. The Rust CLI already trims trailing
    // slashes via `validate_url` before embedding the URL in the
    // payload, so this is defense-in-depth against a corrupted
    // artifact, not the primary normalization path. Avoids the regex
    // engine's backtracking surface that SonarCloud flags as ReDoS-
    // adjacent on `/\/+$/`. `codePointAt` is the Unicode-correct
    // counterpart of `charCodeAt` (47 is U+002F SOLIDUS in both).
    var end = s.length;
    while (end > 0 && s.codePointAt(end - 1) === 47) end--;
    return s.substring(0, end);
  }

  function bootLiveMode() {
    if (!payload.daemon || !payload.daemon.url) return;
    liveState.enabled = true;
    liveState.daemonUrl = stripTrailingSlashes(String(payload.daemon.url));
    var stored = sessionGet(DAEMON_API_KEY_STORAGE);
    if (stored) liveState.apiKey = stored;
    document.body.classList.add("ps-live");

    wireRefreshButton();
    wireLogoutButton();
    wireIncludeAckedToggle();
    wireAuthModal();
    wireAckModal();
    syncLogoutButtonVisibility();

    setDaemonStatus("disconnected", "Connecting...");
    refreshLiveState();
  }

  // -------- boot --------
  renderTopbar();
  registerAllTabs();
  renderAllPanels();
  initSearchInputs();
  populateCheatsheet();
  wireCheatsheetDialog();
  wireShowMoreButton();
  wireExportButtons();
  wireCopyLinkButtons();
  applyInitialHashOrWrite();
  wireHashChangeListener();
  bootLiveMode();
})();
</script>
</body>
</html>