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>

utils/prostheticSystem.js

@@ -0,0 +1,142 @@
+/**
+ * 义体系统 - 安装、卸下、义体适应性
+ */
+
+/**
+ * 安装义体
+ * @param {Object} playerStore - 玩家Store
+ * @param {Object} gameStore - 游戏Store
+ * @param {Object} prostheticItem - 义体物品
+ * @returns {Object} { success: boolean, message: string }
+ */
+export function installProsthetic(playerStore, gameStore, prostheticItem) {
+  // 检查是否已有义体
+  if (playerStore.equipment.prosthetic) {
+    return {
+      success: false,
+      message: '你已经装备了义体，需要先卸下当前的义体。'
+    }
+  }
+
+  // 检查义体类型
+  if (prostheticItem.type !== 'prosthetic') {
+    return {
+      success: false,
+      message: '这不是义体装备。'
+    }
+  }
+
+  // 装备义体
+  playerStore.equipment.prosthetic = { ...prostheticItem }
+
+  // 解锁义体适应性技能
+  if (!playerStore.skills['prosthetic_adaptation']) {
+    playerStore.skills['prosthetic_adaptation'] = { level: 0, exp: 0 }
+  }
+
+  gameStore.addLog(`安装了 ${prostheticItem.name}`, 'reward')
+  gameStore.addLog(`获得了被动技能: 义体适应性`, 'info')
+
+  // 检查成就
+  gameStore.checkAchievements('equip_prosthetic', { prostheticCount: 1 })
+
+  return {
+    success: true,
+    message: `成功安装 ${prostheticItem.name}`
+  }
+}
+
+/**
+ * 卸下义体
+ * @param {Object} playerStore - 玩家Store
+ * @param {Object} gameStore - 游戏Store
+ * @returns {Object} { success: boolean, message: string, removedItem: Object }
+ */
+export function removeProsthetic(playerStore, gameStore) {
+  const currentProsthetic = playerStore.equipment.prosthetic
+
+  if (!currentProsthetic) {
+    return {
+      success: false,
+      message: '你没有装备任何义体。'
+    }
+  }
+
+  // 将义体放回背包
+  playerStore.inventory.push({ ...currentProsthetic })
+
+  // 卸下义体
+  playerStore.equipment.prosthetic = null
+
+  gameStore.addLog(`卸下了 ${currentProsthetic.name}`, 'info')
+
+  return {
+    success: true,
+    message: `成功卸下 ${currentProsthetic.name}`,
+    removedItem: currentProsthetic
+  }
+}
+
+/**
+ * 获取义体提供的属性加成
+ * @param {Object} prosthetic - 义体装备
+ * @returns {Object} 属性加成
+ */
+export function getProstheticBonus(prosthetic) {
+  if (!prosthetic) return null
+
+  return {
+    stats: prosthetic.stats || {},
+    skill: prosthetic.skill || null
+  }
+}
+
+/**
+ * 检查义体技能是否可用
+ * @param {Object} playerStore - 玩家Store
+ * @param {String} skillId - 技能ID
+ * @returns {Boolean} 是否可用
+ */
+export function isProstheticSkillAvailable(playerStore, skillId) {
+  const prosthetic = playerStore.equipment.prosthetic
+  if (!prosthetic) return false
+
+  // 检查义体是否提供该技能
+  return prosthetic.skill === skillId || prosthetic.grantedSkills?.includes(skillId)
+}
+
+/**
+ * 增加义体适应性经验
+ * @param {Object} playerStore - 玩家Store
+ * @param {Object} gameStore - 游戏Store
+ * @param {Number} exp - 经验值
+ */
+export function addProstheticExp(playerStore, gameStore, exp) {
+  const skill = playerStore.skills['prosthetic_adaptation']
+  if (!skill) return
+
+  const { SKILL_CONFIG } = require('@/config/skills.js')
+  const skillConfig = SKILL_CONFIG['prosthetic_adaptation']
+  const maxLevel = skillConfig.maxLevel
+
+  if (skill.level >= maxLevel) return
+
+  skill.exp += exp
+  const expNeeded = skillConfig.expPerLevel(skill.level)
+
+  while (skill.exp >= expNeeded && skill.level < maxLevel) {
+    skill.exp -= expNeeded
+    skill.level++
+    gameStore.addLog(`义体适应性提升到 Lv.${skill.level}!`, 'reward')
+
+    // 检查里程碑奖励
+    if (skillConfig.milestones[skill.level]) {
+      const milestone = skillConfig.milestones[skill.level]
+      gameStore.addLog(`解锁效果: ${milestone.desc}`, 'info')
+    }
+
+    if (skill.level < maxLevel) {
+      expNeeded = skillConfig.expPerLevel(skill.level)
+    }
+  }
+}