canonrs-server 0.1.0

CanonRS server-side rendering support
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id: tree
label: Tree
family: family-b-selection
category: Display
intent: Display hierarchical data
description: Tree view component
composable: true
capabilities: Selected
required_parts: ["TreeItem"]
optional_parts: ["TreeGroup"]
tags: ["tree", "hierarchy", "nodes", "structure", "explorer"]
keywords: 
pain: Tree structures lose selection, expansion and focus consistency
promise: Hierarchy state fully governed via structured attributes
why: |
  TreePrimitive and TreeItemPrimitive encode selection, focus and expansion via data attributes. ARIA roles are enforced. This guarantees accessible hierarchical navigation.
rules: ["CR-001", "CR-004"]
use_cases: ["file explorers", "nested navigation"]
related: ["table", "data_table", "virtual_list", "empty_table", "list_item"]
file: tree_ui.css
tokens: tree-*, space-*, size-*, radius-*, font-*, motion-*
foundation: spacing, size, radius, motion, typography
states: ["expanded", "collapsed", "selected", "disabled", "active"]
island: tree_boundary.rs
pillar: data
badges: ["SSR Safe", "Hydration Safe", "Token Driven", "Deterministic API", "Zero Drift", "Island Architecture"]
before: |
  // ❌ Typical
  view! {
    <ul>
      <li>"Item"</li>
    </ul>
  }
after: |
  // ✅ CanonRS
  view! {
    <Tree>
      <TreeItem has_children=true>"Item"</TreeItem>
    </Tree>
  }
boundary_type: interaction
ix_group: ix_selection
block: []
blocks_primitives: [stack]