canonrs-server 0.1.0

CanonRS server-side rendering support
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id: button_group
label: Button Group
family: family-c-forms
category: Action
intent: Group related action buttons together
description: Group of action buttons
composable: false
capabilities: 
required_parts: []
optional_parts: []
tags: ["button-group", "buttons", "group", "actions", "multiple"]
keywords: 
pain: Grouped buttons lose semantic grouping and accessibility context
promise: Group semantics and attachment enforced via component contract
why: |
  ButtonGroupPrimitive defines role="group" and controlled attachment state via ToggleState. This ensures grouped actions are treated as a single logical unit. The contract guarantees consistent accessibility and visual cohesion.
rules: ["CR-001", "CR-004"]
use_cases: ["toolbar actions", "segmented controls"]
related: ["button", "icon_button", "copy_button", "link"]
file: button_group_ui.css
tokens: button-group-*, button-*, space-*, radius-*, border-*, state-*, focus-ring-*
foundation: spacing, radius, border, interaction
states: ["first", "last"]
island: button_group_boundary.rs
pillar: action
badges: ["SSR Safe", "Hydration Safe", "Token Driven", "Deterministic API", "Zero Drift", "Island Architecture"]
before: |
  // ❌ Typical
  view! {
    <div class="btn-group">
      <button>"Left"</button>
      <button>"Right"</button>
    </div>
  }
after: |
  // ✅ CanonRS
  view! {
    <ButtonGroup>
      <Button>"Left"</Button>
      <Button>"Right"</Button>
    </ButtonGroup>
  }
boundary_type: passthrough
block: []
blocks_primitives: [flex, stack]