docs: 完善项目文档和README，修复字符显示问题

- 修复README.md中的emoji字符显示问题
- 移除文档质量评级系统
- 添加贡献者致谢部分，创建详细的CONTRIBUTORS.md
- 创建核心系统文件EventNames.gd和ProjectPaths.gd
- 更新项目配置文件project.godot，添加输入映射
- 完善各模块文档，修正路径引用问题
- 创建文档更新日志CHANGELOG.md
- 优化文档结构和导航系统

_Core/EventNames.gd

@@ -0,0 +1,58 @@
+# ============================================================================
+# 事件名称定义 - EventNames.gd
+# 
+# 定义项目中所有事件的名称常量，确保事件名称的一致性和可维护性
+# 
+# 使用方式:
+#   EventSystem.emit_event(EventNames.PLAYER_MOVED, data)
+#   EventSystem.connect_event(EventNames.INTERACT_PRESSED, callback)
+# ============================================================================
+
+class_name EventNames
+
+# ============================================================================
+# 玩家相关事件
+# ============================================================================
+const PLAYER_MOVED = "player_moved"
+const PLAYER_SPAWNED = "player_spawned"
+const PLAYER_HEALTH_CHANGED = "player_health_changed"
+const PLAYER_DIED = "player_died"
+const PLAYER_RESPAWNED = "player_respawned"
+const PLAYER_ATTACK = "player_attack"
+
+# ============================================================================
+# 交互事件
+# ============================================================================
+const INTERACT_PRESSED = "interact_pressed"
+const NPC_TALKED = "npc_talked"
+const ITEM_COLLECTED = "item_collected"
+const OBJECT_INTERACTED = "object_interacted"
+
+# ============================================================================
+# UI事件
+# ============================================================================
+const UI_BUTTON_CLICKED = "ui_button_clicked"
+const DIALOG_OPENED = "dialog_opened"
+const DIALOG_CLOSED = "dialog_closed"
+const MENU_OPENED = "menu_opened"
+const MENU_CLOSED = "menu_closed"
+
+# ============================================================================
+# 游戏状态事件
+# ============================================================================
+const GAME_PAUSED = "game_paused"
+const GAME_RESUMED = "game_resumed"
+const SCENE_CHANGED = "scene_changed"
+const SCENE_DATA_TRANSFER = "scene_data_transfer"
+
+# ============================================================================
+# 系统事件
+# ============================================================================
+const TILEMAP_READY = "tilemap_ready"
+const COMPONENT_MESSAGE = "component_message"
+const POSITION_UPDATE = "position_update"
+
+# ============================================================================
+# 测试事件
+# ============================================================================
+const TEST_EVENT = "test_event"