feat: 新增 PATH 智能分析功能 — 冲突检测 + 工具清单

- scan_conflicts: 检测不同目录中的同名可执行文件（遮蔽冲突）
- scan_tools: 扫描各目录提供的可执行文件，支持关键词搜索
- Rust scanner.rs 后端，前端 AnalyzeDialog 弹窗
- 工具栏新增「分析」按钮

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/i18n/locales/en.json

@@ -21,6 +21,7 @@
     "save": "OK",
     "cancel": "Cancel",
     "help": "Help",
+    "analyze": "Analyze",
     "undo": "Undo",
     "redo": "Redo",
     "darkMode": "Dark Mode",
@@ -70,6 +71,18 @@
     "cancel": "Cancel",
     "search": "Search paths..."
   },
+  "analyze": {
+    "title": "PATH Analysis",
+    "conflicts": "Conflicts",
+    "tools": "Tools",
+    "scanning": "Scanning...",
+    "noConflicts": "No executable conflicts found",
+    "noTools": "No matching executables found",
+    "priority": "Prioritized",
+    "shadowed": "Shadowed",
+    "searchPlaceholder": "Search executable name...",
+    "conflictCount": "{{count}} file conflict(s) found"
+  },
   "help": {
     "content": "PathEditor v4.0 — Windows System Environment Variable (PATH) Editor\n\nFeatures:\n• Create/Edit/Delete path entries\n• Move Up/Down to adjust priority\n• One-click cleanup of invalid & duplicate paths\n• Import/Export JSON, CSV, TXT formats\n• Full Undo/Redo support\n\nShortcuts:\n• Ctrl+N New\n• Ctrl+S Save\n• Ctrl+Z Undo\n• Ctrl+Y Redo\n• Ctrl+F Search\n• Delete Delete selected\n• F1 Help\n\nAuthor: 刘航宇\nGitHub: https://github.com/LHY0125/PathEditor"
   }

src/i18n/locales/zh-CN.json

@@ -21,6 +21,7 @@
     "save": "确定",
     "cancel": "取消",
     "help": "帮助",
+    "analyze": "分析",
     "undo": "撤销",
     "redo": "重做",
     "darkMode": "深色模式",
@@ -70,6 +71,18 @@
     "cancel": "取消",
     "search": "搜索路径..."
   },
+  "analyze": {
+    "title": "PATH 分析",
+    "conflicts": "冲突检测",
+    "tools": "工具清单",
+    "scanning": "正在扫描...",
+    "noConflicts": "未发现可执行文件冲突",
+    "noTools": "未找到匹配的可执行文件",
+    "priority": "优先执行",
+    "shadowed": "被遮蔽",
+    "searchPlaceholder": "搜索可执行文件名...",
+    "conflictCount": "发现 {{count}} 个文件冲突"
+  },
   "help": {
     "content": "PathEditor v4.0 — Windows 系统环境变量 (PATH) 编辑器\n\n功能:\n• 新建/编辑/删除路径条目\n• 上移/下移调整优先级\n• 一键清理无效和重复路径\n• 导入/导出 JSON、CSV、TXT 格式\n• 完整撤销/重做支持\n\n快捷键:\n• Ctrl+N 新建\n• Ctrl+S 保存\n• Ctrl+Z 撤销\n• Ctrl+Y 重做\n• Ctrl+F 搜索\n• Delete 删除选中\n• F1 帮助\n\n作者: 刘航宇\nGitHub: https://github.com/LHY0125/PathEditor"
   }