Update frontend project plan progress

- Mark completed tasks in Phase F4
- Track live gameplay implementation progress

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

frontend/PROJECT_PLAN_FRONTEND.json

@@ -2,13 +2,13 @@
   "meta": {
     "version": "1.1.0",
     "created": "2026-01-30",
-    "lastUpdated": "2026-01-31",
+    "lastUpdated": "2026-02-01",
     "planType": "master",
     "projectName": "Mantimon TCG - Frontend",
     "description": "Vue 3 + Phaser 3 frontend for pocket.manticorum.com - real-time multiplayer TCG with campaign mode",
     "totalPhases": 8,
-    "completedPhases": 4,
-    "status": "Phase F3 COMPLETE - Ready for Phase F4 (Live Gameplay)"
+    "completedPhases": 5,
+    "status": "Phase F4 COMPLETE - Ready for Polish & UX (F5)"
   },
 
   "techStack": {
@@ -568,7 +568,8 @@
     {
       "id": "PHASE_F4",
       "name": "Live Gameplay",
-      "status": "NOT_STARTED",
+      "status": "COMPLETE",
+      "completedDate": "2026-02-01",
       "description": "WebSocket integration, game state sync, action handling, complete game flow",
       "estimatedDays": "10-14",
       "dependencies": ["PHASE_F3"],
@@ -723,6 +724,32 @@
       "estimatedDays": "5-7",
       "dependencies": ["PHASE_F4"],
       "backendDependencies": ["PHASE_4"],
+      "technicalDebt": [
+        {
+          "id": "F5-DEBT-001",
+          "description": "Replace 'as any' with proper type validation in useGameSocket",
+          "files": ["src/composables/useGameSocket.ts:258", "src/composables/useGameSocket.ts:316"],
+          "recommendation": "Use Zod schema validation for WebSocket messages",
+          "priority": "medium",
+          "source": "Code audit 2026-01-31"
+        },
+        {
+          "id": "F5-DEBT-002",
+          "description": "Add .catch() to fire-and-forget promises",
+          "files": ["src/composables/useGames.ts:173"],
+          "recommendation": "Add error handler to background fetchActiveGames call",
+          "priority": "low",
+          "source": "Code audit 2026-01-31"
+        },
+        {
+          "id": "F5-DEBT-003",
+          "description": "Audit Phaser scene imports for direct store usage",
+          "files": ["src/game/scenes/"],
+          "recommendation": "Verify all Phaser files use event bridge instead of direct store imports",
+          "priority": "low",
+          "source": "Code audit 2026-01-31"
+        }
+      ],
       "deliverables": [
         "Reconnection with state recovery",
         "Turn timer display",