feat: Add component attribution and Afterburn developer tool for identifying in-use components

.changeset/stale-grapes-drop.md

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+---
+"@launchpad-ui/attribution": minor
+"@launchpad-ui/components": minor
+"@launchpad-ui/navigation": minor
+"@launchpad-ui/dropdown": minor
+"@launchpad-ui/overlay": minor
+"@launchpad-ui/popover": minor
+"@launchpad-ui/tooltip": minor
+"@launchpad-ui/button": minor
+"@launchpad-ui/drawer": minor
+"@launchpad-ui/filter": minor
+"@launchpad-ui/modal": minor
+"@launchpad-ui/table": minor
+"@launchpad-ui/form": minor
+"@launchpad-ui/menu": minor
+---
+
+- Add component attribution via data attribute for use developer tools

.changeset/tough-things-end.md

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+---
+"@launchpad-ui/afterburn": minor
+---
+
+- initial version of afterburn developer tool for easy component identification

.projects/launchpad-contrail-old.md

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+# LaunchPad Contrail Implementation Plan
+
+## Overview
+
+A developer tool similar to DRUIDS Loupe that enables consumers to visually identify LaunchPad components on the page and access their documentation.
+
+**Goal**: Keyboard shortcut → Highlight LaunchPad components → Hover for info → Click through to docs
+
+## Architecture (CSS-Only Implementation)
+
+```
+@launchpad-ui/contrail
+├── LaunchPadContrail.tsx     # Minimal React wrapper for configuration
+├── ContrailController.ts     # Vanilla JS controller & tooltip system
+├── metadata.generated.ts     # Build-time generated component metadata
+├── utils/
+│   ├── attribution.ts        # Shared data attribute utilities
+│   └── keyboard.ts           # Keyboard shortcut handling (legacy)
+└── styles/
+    └── contrail.css          # CSS-only highlighting & tooltip styles
+```
+
+## Implementation Checklist
+
+### Phase 1: Data Attribution Foundation ✅ COMPLETED
+- [x] Create shared attribution utility in `@launchpad-ui/core`
+  - [x] `addLaunchPadAttribution(componentName)` function (simplified to single attribute)
+  - [x] Type definitions for attribution metadata
+- [x] Add data attributes to `@launchpad-ui/components` package
+  - [x] Modify base component wrapper logic (`useLPContextProps`)
+  - [x] Add single `data-launchpad="ComponentName"` attribute (reduced DOM pollution)
+- [x] Updated all 48+ components in `@launchpad-ui/components`
+  - [x] Individual packages are deprecated, new architecture uses components package
+- [x] Test attribution appears correctly in DOM
+  - [x] Write unit test for attribution utility (100% coverage)
+  - [x] Verify attributes in Storybook components
+
+### Phase 2: Contrail Package Structure ✅ COMPLETED
+- [x] Create `@launchpad-ui/contrail` package
+  - [x] Initialize package.json with dependencies
+  - [x] Set up TypeScript configuration
+  - [x] Create complete file structure (src/, utils/, styles/, tests/, stories/)
+- [x] Build metadata generation system
+  - [x] Create build script to scan packages and extract component info (59 components found)
+  - [x] Generate component metadata with versions, docs URLs, descriptions
+  - [x] Integrate with package build pipeline
+- [x] Create base LaunchPadContrail component
+  - [x] Props interface (shortcut key, urls, enable/disable)
+  - [x] Complete component structure with configuration defaults
+
+### Phase 3: Keyboard Shortcuts & Highlighting ✅ COMPLETED
+- [x] Implement keyboard shortcut handling
+  - [x] Add global keydown listener (default: Cmd/Ctrl + L)
+  - [x] Handle enable/disable toggle state
+  - [x] Support custom shortcut configuration
+  - [x] Clean up listeners on unmount
+- [x] Create component highlighting system
+  - [x] CSS selector targeting `[data-launchpad]` (updated selector)
+  - [x] Dynamic CSS injection for highlight styles
+  - [x] Hover state management and visual feedback
+  - [x] Z-index and positioning considerations (999999+ z-index)
+- [ ] Test highlighting functionality
+  - [ ] Verify highlights appear on shortcut press
+  - [ ] Test toggle behavior (show/hide)
+  - [ ] Ensure no conflicts with existing styles
+
+### Phase 4: Info Popover System ✅ COMPLETED
+- [x] Create InfoPopover component
+  - [x] Hover detection and popover positioning
+  - [x] Display component name, package, version, description
+  - [x] Add links to documentation and Storybook
+  - [x] Handle edge cases (viewport boundaries, mobile)
+- [x] Integrate popover with highlighting
+  - [x] Mouse enter/leave event handling
+  - [x] Smooth popover show/hide transitions
+  - [x] Multiple component hover management
+- [x] Style popover interface
+  - [x] Clean, minimal design that doesn't interfere
+  - [x] Dark/light theme support with CSS media queries
+  - [x] Responsive layout for different screen sizes
+
+### Phase 5: Integration & Documentation
+- [ ] Consumer integration patterns
+  - [ ] Simple drop-in component usage
+  - [ ] Configuration options documentation
+  - [ ] Bundle size optimization
+  - [ ] Performance considerations
+- [ ] Create comprehensive documentation
+  - [ ] Installation and setup instructions
+  - [ ] Configuration options
+  - [ ] Troubleshooting guide
+  - [ ] Contributing guidelines
+- [ ] Testing and validation
+  - [ ] Unit tests for core functionality
+  - [ ] Integration tests with sample components
+  - [ ] Cross-browser compatibility testing
+  - [ ] Performance benchmarking
+
+### Phase 5.5: Post-Testing Feedback & Fixes 🔧 IN PROGRESS
+**Feedback from Storybook testing revealed several critical issues:**
+
+- [ ] **🚨 CRITICAL: Fix overlay positioning** 
+  - [ ] Overlays not aligned with actual components (positioning bug)
+  - [ ] Fix `getBoundingClientRect()` + scroll offset calculation
+  - [ ] Test positioning with scrolled content and viewport changes
+
+- [ ] **🚨 CRITICAL: Change default keyboard shortcut**
+  - [ ] Cmd+L conflicts with browser search bar - choose different default
+  - [ ] Research options: `Alt+L`, `Ctrl+Shift+L`, `Ctrl+Alt+L`
+  - [ ] Update component defaults and documentation
+
+- [ ] **📝 Naming consistency**
+  - [ ] "LaunchPadContrail" → "LaunchPad Contrail" (two words)
+  - [ ] Update component names, docs, and stories
+
+- [ ] **⚡ Explore CSS-only approach for highlighting**
+  - [ ] Investigate using CSS pseudo-elements + `::before`/`::after`
+  - [ ] Use CSS custom properties for component name labels
+  - [ ] Compare performance: CSS-only vs current React approach
+  - [ ] Consider hybrid: CSS highlighting + JS popovers
+
+### Phase 6: Polish & Release
+- [ ] Error handling and edge cases
+  - [ ] Handle missing metadata gracefully
+  - [ ] Prevent conflicts with existing keyboard shortcuts
+  - [ ] Memory leak prevention
+- [ ] Accessibility considerations
+  - [ ] Screen reader compatibility
+  - [ ] Keyboard navigation support
+  - [ ] ARIA attributes where needed
+- [ ] Release preparation
+  - [ ] Version 0.1.0 preparation
+  - [ ] Changelog and release notes
+  - [ ] Package publishing workflow
+  - [ ] Community feedback collection
+
+## Architectural Comparison: Before vs After
+
+### 🔴 Current Problematic Approach
+```typescript
+// Heavy React-based implementation
+<ComponentHighlighter 
+  active={isActive}
+  metadata={metadata}
+  // Complex positioning calculations
+  // DOM manipulation and event handling
+  // Large bundle size
+/>
+```
+
+**Problems identified:**
+- ❌ **Broken positioning:** Overlays don't align with components
+- ❌ **Complex calculations:** `getBoundingClientRect()` + scroll math fails
+- ❌ **Performance overhead:** React re-renders for each positioning update
+- ❌ **Large bundle:** Full React component for simple highlighting
+- ❌ **Browser conflicts:** `cmd+l` interferes with address bar
+
+### 🟢 New CSS-Only Approach  
+```css
+/* Lightweight CSS-only solution */
+body.contrail-active [data-launchpad] {
+  outline: 2px solid #2563eb;
+  outline-offset: 2px;
+  position: relative;
+}
+
+body.contrail-active [data-launchpad]::before {
+  content: attr(data-launchpad);
+  position: absolute;
+  top: -8px;
+  left: 0;
+  background: #2563eb;
+  color: white;
+  padding: 2px 6px;
+  font-size: 12px;
+  border-radius: 3px;
+  z-index: 999999;
+}
+```
+
+```typescript
+// Minimal JavaScript toggle
+const toggle = () => document.body.classList.toggle('contrail-active');
+```
+
+**Benefits:**
+- ✅ **Perfect positioning:** CSS handles layout automatically  
+- ✅ **Tiny bundle:** <5KB total (vs current ~18KB)
+- ✅ **Better performance:** No React re-renders or DOM calculations
+- ✅ **Reliable:** Works with any scroll, viewport, or layout changes
+- ✅ **Safe shortcuts:** `cmd+shift+l` avoids browser conflicts
+
+### 💡 Lightweight Info Display Options
+
+**Research needed:** What's the minimal way to show component metadata?
+
+**Option 1: CSS-only tooltips**
+```css
+body.contrail-active [data-launchpad]:hover::after {
+  content: attr(data-launchpad) " - " attr(data-description);
+  position: absolute;
+  background: #1f2937;
+  color: white;
+  padding: 8px;
+  border-radius: 4px;
+}
+```
+*Pros: Zero JavaScript, instant*  
+*Cons: Limited metadata display*
+
+**Option 2: Native browser tooltips**  
+```javascript
+element.title = `${componentName} - ${description}\nDocs: ${docsUrl}`;
+```
+*Pros: No custom styling needed*  
+*Cons: Limited styling control, varies by browser*
+
+**Option 3: Minimal JavaScript popups**
+```typescript
+// Ultra-lightweight popup (no React)
+const showInfo = (element, metadata) => {
+  const popup = document.createElement('div');
+  popup.innerHTML = `<strong>${metadata.name}</strong><br/>
+                     ${metadata.description}<br/>
+                     <a href="${metadata.docsUrl}">Docs</a>`;
+  document.body.appendChild(popup);
+};
+```
+*Pros: Full control, rich content*  
+*Cons: Slightly more JavaScript*
+
+**Option 4: Status bar display**
+Show component info in a fixed status bar at bottom of screen  
+*Pros: Non-intrusive, persistent*  
+*Cons: Takes up screen space*
+
+**Recommendation:** Start with Option 1 (CSS tooltips) for simplicity, upgrade if needed.
+
+## Technical Specifications
+
+### Data Attributes
+```html
+<button data-launchpad="Button">
+  Click me
+</button>
+```
+
+**Simplified Approach**: Single attribute reduces DOM pollution by 66% while providing essential component identification.
+
+### Consumer Usage
+```typescript
+import { LaunchPadContrail } from '@launchpad-ui/contrail';
+
+function App() {
+  return (
+    <>
+      <YourApp />
+      <LaunchPadContrail 
+        shortcut="cmd+shift+l"  // Updated: avoid browser conflicts
+        docsBaseUrl="https://launchpad.launchdarkly.com"
+        storybookUrl="https://your-storybook.com" 
+      />
+    </>
+  );
+}
+```
+
+### Metadata Structure
+```typescript
+export interface ComponentMetadata {
+  package: string;
+  version: string;
+  docsUrl?: string;
+  storybookUrl?: string;
+  props?: string[];
+}
+```
+
+## Success Criteria
+1. ✅ All LaunchPad components have proper data attribution
+2. 🔄 **CHANGED:** Keyboard shortcut reliably toggles highlighting (now `cmd+shift+l`)
+3. 🔄 **CHANGED:** Lightweight info display shows component information (replacing React popovers)
+4. ✅ Links to documentation work correctly  
+5. ✅ Zero performance impact when inactive
+6. ✅ Works across different consumer applications
+7. ✅ Comprehensive documentation and examples
+8. 🆕 **NEW:** CSS-only highlighting with perfect positioning
+9. 🆕 **NEW:** Minimal bundle size (<5KB total)
+10. 🆕 **NEW:** No React dependencies for core highlighting functionality