fix: 修复武器经验获取并完善义体系统

- 修复战斗胜利后未获得武器技能经验的问题 (initCombat未传递skillExpReward)
- 每级武器技能提供5%武器伤害加成（已实现，无需修改）
- 实现义体安装/卸载功能，支持NPC对话交互
- StatusPanel添加义体装备槽显示
- MapPanel修复NPC对话import问题
- 新增成就系统框架
- 添加项目文档CLAUDE.md

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

components/panels/MapPanel.vue

@@ -124,7 +124,7 @@ import { NPC_CONFIG } from '@/config/npcs.js'
 import { ENEMY_CONFIG, getRandomEnemyForLocation } from '@/config/enemies.js'
 import { getShopConfig } from '@/config/shop.js'
 import { initCombat, getEnvironmentType } from '@/utils/combatSystem.js'
-import { triggerExploreEvent, tryFlee } from '@/utils/eventSystem.js'
+import { triggerExploreEvent, tryFlee, startNPCDialogue } from '@/utils/eventSystem.js'
 import TextButton from '@/components/common/TextButton.vue'
 import ProgressBar from '@/components/common/ProgressBar.vue'
 import FilterTabs from '@/components/common/FilterTabs.vue'
@@ -252,16 +252,8 @@ const availableNPCs = computed(() => {
 function talkToNPC(npc) {
   game.addLog(`与 ${npc.name} 开始对话...`, 'info')
 
-  // 打开 NPC 对话
-  if (npc.dialogue && npc.dialogue.first) {
-    game.drawerState.event = true
-    game.currentEvent = {
-      type: 'npc_dialogue',
-      npcId: npc.id,
-      dialogue: npc.dialogue.first,
-      choices: npc.dialogue.first.choices || []
-    }
-  }
+  // 使用 eventSystem 的 startNPCDialogue 来处理对话
+  startNPCDialogue(game, npc.id, 'first', player)
 }
 
 function openInventory() {
@@ -360,14 +352,15 @@ function startCombat() {
   // 获取环境类型
   const environment = getEnvironmentType(player.currentLocation)
 
-  // 使用 initCombat 初始化战斗
-  game.combatState = initCombat(enemyConfig.id, enemyConfig, environment)
+  // 使用 initCombat 初始化战斗，传入偏好的战斗姿态
+  game.combatState = initCombat(enemyConfig.id, enemyConfig, environment, game.preferredStance)
   game.inCombat = true
 }
 
 function changeStance(stance) {
   if (game.combatState) {
     game.combatState.stance = stance
+    game.preferredStance = stance  // 记住玩家选择的姿态
     game.addLog(`切换到${stanceTabs.find(t => t.id === stance)?.label}姿态`, 'combat')
   }
 }