feat: implement user authentication system

- Add SessionManager for managing user sessions (singleton pattern)
- Add BIPUsersDAO for database authentication
- Add LoginDialog component for username/password login
- Add UserSelectionDialog component for admin user selection
- Support silent login by computer name
- Implement main page with navigation to Extractor and Cleaner

Database:
- Table: dbo_BIPUsers
- Fields: UserName, Password, UserType, ComputerNmae

UI Flow:
1. Silent login on startup via computer name
2. Show login dialog if silent login fails
3. Display main page with user info and navigation
4. Support logout and re-login

src/preload/index.ts

@@ -4,6 +4,8 @@ import type { MySqlConfig, SqlServerConfig } from '../main/types/ipc-api.types'
 import type { ExtractorInput } from '../main/types/extractor.types'
 import type { CleanerInput } from '../main/types/cleaner.types'
 import type { ResolverInput } from '../main/ipc/resolver-handler'
+import type { LoginRequest } from '../main/ipc/auth-handler'
+import type { UserInfo } from '../main/types/user.types'
 
 // Custom APIs for renderer
 const api = {
@@ -32,6 +34,18 @@ const api = {
     validateFormat: (inputs: string[]) => ipcRenderer.invoke('resolver:validateFormat', inputs)
   },
 
+  // Authentication service
+  auth: {
+    getComputerName: () => ipcRenderer.invoke('auth:getComputerName'),
+    silentLogin: () => ipcRenderer.invoke('auth:silentLogin'),
+    login: (request: LoginRequest) => ipcRenderer.invoke('auth:login', request),
+    logout: () => ipcRenderer.invoke('auth:logout'),
+    getCurrentUser: () => ipcRenderer.invoke('auth:getCurrentUser'),
+    getAllUsers: () => ipcRenderer.invoke('auth:getAllUsers'),
+    switchUser: (userInfo: UserInfo) => ipcRenderer.invoke('auth:switchUser', userInfo),
+    isAdmin: () => ipcRenderer.invoke('auth:isAdmin')
+  },
+
   // Database service
   database: {
     connectMySql: (config: MySqlConfig) => ipcRenderer.invoke('database:mysql:connect', config),