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/combatSystem.js

@@ -143,22 +143,27 @@ export function calculateEP(defender, stance = 'balance', environment = 'normal'
  *
  * @param {Number} ap - 攻击点数
  * @param {Number} ep - 闪避点数
+ * @param {Boolean} isPlayer - 是否是玩家攻击（玩家享受最低命中率加成）
  * @returns {Number} 命中概率 (0-1)
  */
-export function calculateHitRate(ap, ep) {
+export function calculateHitRate(ap, ep, isPlayer = false) {
   const ratio = ap / (ep + 1)
 
   // 非线性命中概率表
-  if (ratio >= 5) return 0.98
-  if (ratio >= 3) return 0.90
-  if (ratio >= 2) return 0.80
-  if (ratio >= 1.5) return 0.65
-  if (ratio >= 1) return 0.50
-  if (ratio >= 0.75) return 0.38
-  if (ratio >= 0.5) return 0.24
-  if (ratio >= 0.33) return 0.15
-  if (ratio >= 0.2) return 0.08
-  return 0.05
+  let hitRate = 0.05
+  if (ratio >= 5) hitRate = 0.98
+  else if (ratio >= 3) hitRate = 0.90
+  else if (ratio >= 2) hitRate = 0.80
+  else if (ratio >= 1.5) hitRate = 0.65
+  else if (ratio >= 1) hitRate = 0.50
+  else if (ratio >= 0.75) hitRate = 0.38
+  else if (ratio >= 0.5) hitRate = 0.24
+  else if (ratio >= 0.33) hitRate = 0.15
+  else if (ratio >= 0.2) hitRate = 0.08
+
+  // 最低命中率：敌人攻击玩家时至少40%命中率，玩家攻击敌人时至少15%
+  const minHitRate = isPlayer ? 0.15 : 0.40
+  return Math.max(minHitRate, hitRate)
 }
 
 /**
@@ -202,13 +207,13 @@ export function calculateCritMultiplier(attacker) {
  * @param {Object} defenderBonuses - 防御者加成
  * @returns {Object} { hit: boolean, damage: number, crit: boolean, evaded: boolean, shieldAbsorbed: number }
  */
-export function processAttack(attacker, defender, stance = 'balance', environment = 'normal', attackerBonuses = {}, defenderBonuses = {}) {
+export function processAttack(attacker, defender, stance = 'balance', environment = 'normal', attackerBonuses = {}, defenderBonuses = {}, isPlayerAttacker = false) {
   // 计算AP和EP
   const ap = calculateAP(attacker, stance, 1, environment, attackerBonuses)
   const ep = calculateEP(defender, 'balance', environment, defenderBonuses)
 
-  // 计算命中概率
-  const hitRate = calculateHitRate(ap, ep)
+  // 计算命中概率（玩家攻击时isPlayerAttacker=true，敌人攻击时isPlayerAttacker=false）
+  const hitRate = calculateHitRate(ap, ep, isPlayerAttacker)
 
   // 第一步：闪避判定
   const roll = Math.random()
@@ -391,7 +396,8 @@ export function combatTick(gameStore, playerStore, combatState) {
     stance,
     environment,
     playerBonuses,
-    {}
+    {},
+    true  // 玩家攻击
   )
 
   if (playerAttack.hit) {
@@ -441,7 +447,8 @@ export function combatTick(gameStore, playerStore, combatState) {
     'balance',
     environment,
     {},
-    playerBonuses
+    playerBonuses,
+    false  // 敌人攻击
   )
 
   if (enemyAttack.hit) {
@@ -516,9 +523,10 @@ export function getStaminaCost(stance) {
  * @param {String} enemyId - 敌人ID
  * @param {Object} enemyConfig - 敌人配置
  * @param {String} environment - 环境类型
+ * @param {String} preferredStance - 玩家偏好的战斗姿态
  * @returns {Object} 战斗状态
  */
-export function initCombat(enemyId, enemyConfig, environment = 'normal') {
+export function initCombat(enemyId, enemyConfig, environment = 'normal', preferredStance = 'balance') {
   return {
     enemyId,
     enemy: {
@@ -530,9 +538,10 @@ export function initCombat(enemyId, enemyConfig, environment = 'normal') {
       defense: enemyConfig.baseStats.defense,
       baseStats: enemyConfig.baseStats,
       expReward: enemyConfig.expReward,
+      skillExpReward: enemyConfig.skillExpReward || 0,
       drops: enemyConfig.drops || []
     },
-    stance: 'balance',
+    stance: preferredStance,  // 使用玩家偏好的战斗姿态
     environment,
     startTime: Date.now(),
     ticks: 0