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.

apps/admin-web/src/lib/kol-platform-options.ts

@@ -0,0 +1,15 @@
+export interface KolPlatformOption {
+  label: string;
+  value: string;
+}
+
+export function buildKolPlatformOptions(defaultLabel: string): KolPlatformOption[] {
+  return [
+    { label: defaultLabel, value: "通用" },
+    { label: "小红书", value: "xiaohongshu" },
+    { label: "微信", value: "wechat" },
+    { label: "豆包", value: "doubao" },
+    { label: "DeepSeek", value: "deepseek" },
+    { label: "ChatGPT", value: "chatgpt" },
+  ];
+}