feat: add knowledge directory management for documents and FAQs

- Implemented directory validation in Create and Update knowledge document services.
- Added directory selection in document and FAQ edit dialogs with a new KnowledgeDirectoryPanel component.
- Enhanced API to support fetching, creating, updating, and deleting knowledge directories.
- Updated data models to include directory information for knowledge documents and FAQs.
- Added translations for directory-related messages in English and Chinese.

internal/bootstrap/routes.go

@@ -253,6 +253,14 @@ func registerDashboardKnowledgeBaseRoutes(group *gin.RouterGroup) {
 	group.POST("/update_sort", dashboard.KnowledgeBasePostUpdate_sort)
 }
 
+func registerDashboardKnowledgeDirectoryRoutes(group *gin.RouterGroup) {
+	group.GET("/list_all", dashboard.KnowledgeDirectoryGetList_all)
+	group.POST("/create", dashboard.KnowledgeDirectoryPostCreate)
+	group.POST("/delete", dashboard.KnowledgeDirectoryPostDelete)
+	group.POST("/update", dashboard.KnowledgeDirectoryPostUpdate)
+	group.POST("/update_sort", dashboard.KnowledgeDirectoryPostUpdate_sort)
+}
+
 func registerDashboardKnowledgeDocumentRoutes(group *gin.RouterGroup) {
 	group.GET("/:id", dashboard.KnowledgeDocumentGetBy)
 	group.POST("/create", dashboard.KnowledgeDocumentPostCreate)

internal/bootstrap/server.go

@@ -187,6 +187,7 @@ func addRouter(app *gin.Engine) {
 	registerDashboardAIConfigRoutes(dashboardGroup.Group("/ai-config"))
 	registerDashboardAssetRoutes(dashboardGroup.Group("/asset"))
 	registerDashboardKnowledgeBaseRoutes(dashboardGroup.Group("/knowledge-base"))
+	registerDashboardKnowledgeDirectoryRoutes(dashboardGroup.Group("/knowledge-directory"))
 	registerDashboardKnowledgeDocumentRoutes(dashboardGroup.Group("/knowledge-document"))
 	registerDashboardKnowledgeFAQRoutes(dashboardGroup.Group("/knowledge-faq"))
 	registerDashboardKnowledgeRetrieveRoutes(dashboardGroup.Group("/knowledge-retrieve"))