feat: add support for Trae AI assistant (#69)

* feat(trae): add support for Trae AI assistant

Add Trae as a new supported AI assistant with version bump to 1.7.0. Includes:
- New .trae folder for skill files
- Updated CLI to detect and copy Trae skill files
- Added Trae to AIType enum and documentation
- Implemented search functionality for Trae-specific queries
- Added Trae skill data and scripts

* feat: update trae skill documentation and readme example

- Refactor SKILL.md to improve clarity and organization
- Add explicit usage instructions and prerequisites
- Update README.md example to clarify frontend-only scope

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Co-authored-by: Alex Le <alex.le@bytedance.com>

cli/src/utils/extract.ts

@@ -39,7 +39,7 @@ export async function copyFolders(
   const copiedFolders: string[] = [];
 
   const foldersToCopy = aiType === 'all'
-    ? ['.claude', '.cursor', '.windsurf', '.agent', '.github', '.kiro', '.roo','.codex', '.gemini', '.shared']
+    ? ['.claude', '.cursor', '.windsurf', '.agent', '.github', '.kiro', '.roo','.codex', '.gemini', '.trae', '.shared']
     : AI_FOLDERS[aiType];
 
   // Deduplicate folders (e.g., .shared might be listed multiple times)