Phase 06 Tier 1: Complete Backend Implementation - Recovery Tracking & Swap System

COMPLETED TASKS:
✅ 06-01: Workout Swap System
   - Added swapped_from_id to workout_logs
   - Created workout_swaps table for history
   - POST /api/workouts/:id/swap endpoint
   - GET /api/workouts/available endpoint
   - Reversible swaps with audit trail

✅ 06-02: Muscle Group Recovery Tracking
   - Created muscle_group_recovery table
   - Implemented calculateRecoveryScore() function
   - GET /api/recovery/muscle-groups endpoint
   - GET /api/recovery/most-recovered endpoint
   - Auto-tracking on workout log completion

✅ 06-03: Smart Workout Recommendations
   - GET /api/recommendations/smart-workout endpoint
   - 7-day workout analysis algorithm
   - Recovery-based filtering (>30% threshold)
   - Top 3 recommendations with context
   - Context-aware reasoning messages

DATABASE CHANGES:
- Added 4 new tables: muscle_group_recovery, workout_swaps, custom_workouts, custom_workout_exercises
- Extended workout_logs with: swapped_from_id, source_type, custom_workout_id, custom_workout_exercise_id
- Created 7 new indexes for performance

IMPLEMENTATION:
- Recovery service with 4 core functions
- 2 new route handlers (recovery, smartRecommendations)
- Updated workouts router with swap endpoints
- Integrated recovery tracking into POST /api/logs
- Full error handling and logging

TESTING:
- Test file created: /backend/test/phase-06-tests.js
- Ready for E2E and staging validation

STATUS: Ready for frontend integration and production review
Branch: feature/06-phase-06

.claude/commands/hooks/session-end.md

@@ -0,0 +1,118 @@
+# hook session-end
+
+Cleanup and persist session state before ending work.
+
+## Usage
+
+```bash
+npx claude-flow hook session-end [options]
+```
+
+## Options
+
+- `--session-id, -s <id>` - Session identifier to end
+- `--save-state` - Save current session state (default: true)
+- `--export-metrics` - Export session metrics
+- `--generate-summary` - Create session summary
+- `--cleanup-temp` - Remove temporary files
+
+## Examples
+
+### Basic session end
+
+```bash
+npx claude-flow hook session-end --session-id "dev-session-2024"
+```
+
+### With full export
+
+```bash
+npx claude-flow hook session-end -s "feature-auth" --export-metrics --generate-summary
+```
+
+### Quick close
+
+```bash
+npx claude-flow hook session-end -s "quick-fix" --save-state false --cleanup-temp
+```
+
+### Complete persistence
+
+```bash
+npx claude-flow hook session-end -s "major-refactor" --save-state --export-metrics --generate-summary
+```
+
+## Features
+
+### State Persistence
+
+- Saves current context
+- Stores open files
+- Preserves task progress
+- Maintains decisions
+
+### Metric Export
+
+- Session duration
+- Commands executed
+- Files modified
+- Tokens consumed
+- Performance data
+
+### Summary Generation
+
+- Work accomplished
+- Key decisions made
+- Problems solved
+- Next steps identified
+
+### Cleanup Operations
+
+- Removes temp files
+- Clears caches
+- Frees resources
+- Optimizes storage
+
+## Integration
+
+This hook is automatically called by Claude Code when:
+
+- Ending a conversation
+- Closing work session
+- Before shutdown
+- Switching contexts
+
+Manual usage in agents:
+
+```bash
+# At session end
+npx claude-flow hook session-end --session-id "your-session" --generate-summary
+```
+
+## Output
+
+Returns JSON with:
+
+```json
+{
+  "sessionId": "dev-session-2024",
+  "duration": 7200000,
+  "saved": true,
+  "metrics": {
+    "commandsRun": 145,
+    "filesModified": 23,
+    "tokensUsed": 85000,
+    "tasksCompleted": 8
+  },
+  "summaryPath": "/sessions/dev-session-2024-summary.md",
+  "cleanedUp": true,
+  "nextSession": "dev-session-2025"
+}
+```
+
+## See Also
+
+- `hook session-start` - Session initialization
+- `hook session-restore` - Session restoration
+- `performance report` - Detailed metrics
+- `memory backup` - State backup