fix: Enhance Kol Variable Rendering and Management

- Updated the regex for placeholder matching to support more flexible key formats.
- Refactored variable storage to allow both ID and key lookups in rendering.
- Improved schema validation to check for duplicate keys and enforce non-empty keys.
- Added new utility functions for variable value lookup and display name generation.
- Enhanced tests to cover new key-based variable scenarios.
- Refactored KolPrompt repository to simplify prompt storage and management, including the removal of obsolete revision handling.
- Introduced new API endpoints for saving, activating, and archiving prompts.
- Added new utility functions for handling Kol placeholders and platform options in the admin web.
- Implemented database migrations to simplify prompt storage structure and ensure data integrity.

server/internal/tenant/transport/router.go

@@ -70,8 +70,10 @@ func RegisterRoutes(app *bootstrap.App) {
 	kolManage.GET("/prompts/:id", kolManageHandler.GetPromptLatest)
 	kolManage.PUT("/prompts/:id", kolManageHandler.UpdatePromptMetadata)
 	kolManage.DELETE("/prompts/:id", kolManageHandler.DeletePrompt)
-	kolManage.POST("/prompts/:id/draft", kolManageHandler.SaveDraft)
+	kolManage.POST("/prompts/:id/save", kolManageHandler.SavePrompt)
 	kolManage.POST("/prompts/:id/publish", kolManageHandler.PublishPrompt)
+	kolManage.PUT("/prompts/:id/activate", kolManageHandler.ActivatePrompt)
+	kolManage.PUT("/prompts/:id/archive", kolManageHandler.ArchivePrompt)
 	kolManage.POST("/assist", kolManageHandler.AssistSubmit)
 	kolManage.GET("/assist/:id", kolManageHandler.AssistGet)