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>

.claude/agents/extract-steps-1.md

@@ -0,0 +1,6 @@
+---
+name: extract-steps-1
+description: 从文档中提取开发步骤
+model: sonnet
+---
+从步骤文档中提取并列出所有开发步骤。对于每个步骤，识别任务描述、要求和验收标准。以编号列表格式输出步骤。