refactor: 迁移至 electron-vite 官方推荐目录结构

- electron/* -> src/main/* (主进程)
- electron/preload.ts -> src/preload/index.ts (预加载)
- src/electron-api.d.ts -> src/preload/index.d.ts (类型声明)
- src/* -> src/renderer/src/* (渲染进程)
- src/index.html -> src/renderer/index.html
- electron.vite.config.ts 简化为自动入口检测 (零配置)
- tsconfig.app.json -> tsconfig.web.json, 更新 includes/paths
- 构建产物 dist-electron/ -> out/ (修复 main/preload 输出覆盖 bug)
- 更新 package.json main 字段 + electron-builder files
- 更新 .gitignore + eslint ignores
- 更新 AGENTS.md 架构文档

src/main/store.ts

@@ -0,0 +1,60 @@
+import Store from 'electron-store'
+
+interface ConnectionConfig {
+  id: string
+  name: string
+  host: string
+  port: number
+  auth: string
+  username: string
+  tls: boolean
+  tlsCaPath: string
+  tlsCertPath: string
+  tlsKeyPath: string
+  tlsRejectUnauthorized: boolean
+  sshEnabled: boolean
+  sshHost: string
+  sshPort: number
+  sshUsername: string
+  sshPassword: string
+  sshPrivateKeyPath: string
+  sshPassphrase: string
+  cluster: boolean
+  sentinelEnabled: boolean
+  sentinelHost: string
+  sentinelPort: number
+  sentinelMasterName: string
+  sentinelNodePassword: string
+  separator: string
+  order: number
+  createdAt: number
+  color?: string
+}
+
+interface AppSettings {
+  theme: 'system' | 'dark' | 'light'
+  locale: string
+  fontSize: number
+  scanCount: number
+}
+
+interface AppStorage {
+  connections: ConnectionConfig[]
+  settings: AppSettings
+}
+
+const store = new Store<AppStorage>({
+  name: 'jrdm-config',
+  defaults: {
+    connections: [],
+    settings: {
+      theme: 'system',
+      locale: 'en',
+      fontSize: 13,
+      scanCount: 500,
+    },
+  },
+})
+
+export default store
+export type { ConnectionConfig, AppSettings }