feat: add token-based API access (v0.6.0)

- Add Token GORM model with UserID/Name/Token/LastUsedAt/ExpiresAt fields
- Add TokenManager controller: List/Create/Delete/Verify operations
- Add token HTTP handlers: list, create, revoke
- Update AuthVerify to support Bearer token auth; API tokens use "ust_" prefix to distinguish from session tokens
- Add one-step file upload endpoint: PUT /api/v1/upload/:filename (returns {"status":200,"data":{"code":"..."}})
- Add token management routes: GET/POST/DELETE /api/token
- Add /self page: personal center with account info, token management table, and curl usage guide
- Add "个人中心 / API Token" nav link for users with token_manage permission

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internal/api/api.go

@@ -50,6 +50,17 @@ func Start(ctx context.Context) <-chan struct{} {
 		api.Get("/roles", handler.AuthVerify(), handler.AuthPermission(model.PermUserManage), handler.AdminListRoles())
 	}
 
+	// Token management
+	{
+		api := app.Group("/api/token")
+		api.Get("", handler.AuthVerify(), handler.AuthPermission(model.PermTokenManage), handler.TokenList())
+		api.Post("", handler.AuthVerify(), handler.AuthPermission(model.PermTokenManage), handler.TokenCreate())
+		api.Delete("", handler.AuthVerify(), handler.AuthPermission(model.PermTokenManage), handler.TokenDelete())
+	}
+
+	// API v1 - token-authenticated file upload
+	app.Put("/api/v1/upload/:filename", handler.AuthVerify(), handler.AuthPermission(model.PermUpload), handler.ShareAPIUpload())
+
 	// Frontend static files
 	app.Use(handler.ServeFrontendMiddleware())