fix(cli): support OpenCode ai type (#84)

cli/src/utils/detect.ts

@@ -43,7 +43,9 @@ export function detectAIType(cwd: string = process.cwd()): DetectionResult {
   if (existsSync(join(cwd, '.trae'))) {
     detected.push('trae');
   }
-
+  if (existsSync(join(cwd, '.opencode'))) {
+    detected.push('opencode');
+  }
 
   // Suggest based on what's detected
   let suggested: AIType | null = null;
@@ -80,6 +82,8 @@ export function getAITypeDescription(aiType: AIType): string {
       return 'Gemini CLI (.gemini/skills/ + .shared/)';
     case 'trae':
       return 'Trae (.trae/skills/ + .shared/)';
+    case 'opencode':
+      return 'OpenCode (.opencode/skills/ + .shared/)';
     case 'all':
       return 'All AI assistants';
   }

cli/src/utils/extract.ts

@@ -40,7 +40,7 @@ export async function copyFolders(
   const copiedFolders: string[] = [];
 
   const foldersToCopy = aiType === 'all'
-    ? ['.claude', '.cursor', '.windsurf', '.agent', '.github', '.kiro', '.roo','.codex', '.gemini', '.trae', '.shared']
+    ? Object.values(AI_FOLDERS).flat()
     : AI_FOLDERS[aiType];
 
   // Deduplicate folders (e.g., .shared might be listed multiple times)