Initial commit: Text Adventure Game

Features:
- Combat system with AP/EP hit calculation and three-layer defense
- Auto-combat/farming mode
- Item system with stacking support
- Skill system with levels, milestones, and parent skill sync
- Shop system with dynamic pricing
- Inventory management with bulk selling
- Event system
- Game loop with offline earnings
- Save/Load system

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

package.json

@@ -0,0 +1,16 @@
+{
+  "type": "module",
+  "dependencies": {
+    "pinia": "^3.0.4"
+  },
+  "devDependencies": {
+    "@playwright/test": "^1.57.0",
+    "jest": "^30.2.0",
+    "vite": "^7.3.1"
+  },
+  "scripts": {
+    "test": "jest",
+    "test:watch": "jest --watch",
+    "test:coverage": "jest --coverage"
+  }
+}