chore: remove all node_modules directories from repo

.pm-checkpoint.json

@@ -1,20 +1,20 @@
 {
-  "lastRun": "2026-03-01T20:42:00+01:00",
-  "status": "completed",
+  "lastRun": "2026-03-02T03:55:00Z",
+  "status": "blocked",
   "phase": "04-workout-modification",
-  "activeTask": "04-05-reset-to-original",
-  "tasksCompleted": ["01-input-ux", "02-flexible-sets", "03-design-polish", "04-01-schema-migration", "04-02-backend-api", "04-03-frontend-workout-edit", "04-04-visual-distinction", "04-05-reset-to-original"],
-  "nextTask": "04-06-persistence-improvements",
-  "agentSession": "local-exec",
-  "agentType": "gravl-pm-cron",
-  "spawnTime": "2026-03-01T20:42:00+01:00",
-  "result": "Phase 04-05 complete. Reset to Original feature fully implemented. Changes: 1) Added refresh button to custom workout cards (visible only on 'Anpassad' workouts). 2) Implemented handleResetClick + handleConfirmReset flow with confirmation dialog ('Är du säker? Dina ändringar kommer att försvinna...'). 3) DELETE /api/custom-workouts/:id endpoint verified (exists in backend). 4) Added CSS styling: .reset-btn (orange icon button with hover effects), .success-message (green slide-down animation), .modal-overlay/.modal-dialog/.modal-btn (reusable confirmation dialog). 5) Added refresh icon to Icons.jsx SVG library. Frontend build successful with no errors.",
-  "notes": "Task 04-05 complete. Custom workouts can now be reset to original program versions. User gets confirmation dialog before deletion. UI updates show badge change from 'Anpassad' to 'Program' after reset. Next: 04-06 (persistence improvements or advanced features like workout export/backup).",
-  "filesModified": [
-    "frontend/src/pages/WorkoutSelectPage.jsx",
-    "frontend/src/App.css",
-    "frontend/src/components/Icons.jsx"
+  "milestone": "PHASE_04_COMPLETE",
+  "completedTasks": [
+    "04-01-database-schema",
+    "04-02-backend-api",
+    "04-03-frontend-edit-mode",
+    "04-04-visual-distinction",
+    "04-05-reset-option",
+    "04-06-01-draft-persistence",
+    "04-06-02-error-recovery",
+    "04-06-03-sync-status-ui"
   ],
-  "buildStatus": "success",
-  "buildTime": "3.59s"
+  "result": "Phase 04 (Workout Modification) complete. Users can now fork and customize program workouts with persistent, error-resistant, real-time sync feedback. Next phase awaits definition.",
+  "blockReason": "No 04-06-04 spec or 05-* phase defined. Awaiting human direction for next feature.",
+  "recommendation": "Options: (1) Define and execute 04-06-04 performance optimization, (2) Start phase 05 (new feature), (3) User reviews completeness and prioritizes next work",
+  "nextAction": "Await phase definition in workspace planning docs or manual prompt"
 }