feat: AI Town MVP - 完整三层架构实现

- Python FastAPI 引擎：世界状态模拟、全局能量条、世界事件系统
- Node.js WebSocket 服务器：实时通信、事件队列批处理
- 前端仪表盘：世界状态可视化、行动日志、事件展示

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

engine-python/app/global_events.py

@@ -0,0 +1,108 @@
+"""世界级事件池"""
+from typing import Callable, List, Dict, Any, Optional
+from .models import WorldState, Weather, GlobalEventInfo, WorldEffect
+
+
+class GlobalEvent:
+    """世界级事件定义"""
+    def __init__(
+        self,
+        name: str,
+        description: str,
+        apply_effect: Callable[[WorldState], None],
+        effect_type: str,
+        effect_duration: int = 5,
+        mood_modifier: int = 0
+    ):
+        self.name = name
+        self.description = description
+        self.apply_effect = apply_effect
+        self.effect_type = effect_type
+        self.effect_duration = effect_duration
+        self.mood_modifier = mood_modifier
+
+    def to_info(self) -> GlobalEventInfo:
+        return GlobalEventInfo(name=self.name, description=self.description)
+
+    def create_world_effect(self) -> WorldEffect:
+        return WorldEffect(
+            type=self.effect_type,
+            name=self.name,
+            intensity=abs(self.mood_modifier),
+            remaining_ticks=self.effect_duration,
+            mood_modifier=self.mood_modifier
+        )
+
+
+# 事件效果函数
+def effect_festival(state: WorldState) -> None:
+    """节日效果：天气变晴，情绪+5"""
+    state.weather = Weather.SUNNY
+    state.town_mood = min(10, state.town_mood + 5)
+
+
+def effect_storm(state: WorldState) -> None:
+    """暴风雨效果：天气变雨，情绪-3"""
+    state.weather = Weather.RAINY
+    state.town_mood = max(-10, state.town_mood - 3)
+
+
+def effect_scandal(state: WorldState) -> None:
+    """丑闻效果：情绪-5"""
+    state.town_mood = max(-10, state.town_mood - 5)
+
+
+def effect_miracle(state: WorldState) -> None:
+    """奇迹效果：天气变晴，情绪+3"""
+    state.weather = Weather.SUNNY
+    state.town_mood = min(10, state.town_mood + 3)
+
+
+def effect_fire(state: WorldState) -> None:
+    """火灾效果：情绪-4"""
+    state.town_mood = max(-10, state.town_mood - 4)
+
+
+# 世界级事件池
+GLOBAL_EVENT_POOL: List[GlobalEvent] = [
+    GlobalEvent(
+        name="小镇节日",
+        description="居民们欢聚一堂，举办盛大庆典！",
+        apply_effect=effect_festival,
+        effect_type="festival",
+        effect_duration=5,
+        mood_modifier=2,
+    ),
+    GlobalEvent(
+        name="暴风雨来袭",
+        description="乌云密布，暴风雨席卷小镇。",
+        apply_effect=effect_storm,
+        effect_type="storm",
+        effect_duration=4,
+        mood_modifier=-1,
+    ),
+    GlobalEvent(
+        name="惊天丑闻",
+        description="镇长的秘密被曝光，全镇哗然。",
+        apply_effect=effect_scandal,
+        effect_type="scandal",
+        effect_duration=6,
+        mood_modifier=-2,
+    ),
+    GlobalEvent(
+        name="彩虹奇迹",
+        description="雨后天空出现绚丽彩虹。",
+        apply_effect=effect_miracle,
+        effect_type="miracle",
+        effect_duration=3,
+        mood_modifier=1,
+    ),
+    GlobalEvent(
+        name="火灾警报",
+        description="镇中心发生火情，消防队紧急出动。",
+        apply_effect=effect_fire,
+        effect_type="fire",
+        effect_duration=4,
+        mood_modifier=-2,
+    ),
+]