feat: add CLI settings export/import functionality

- Implemented exportSettings and importSettings APIs for CLI settings.
- Added hooks useExportSettings and useImportSettings for managing export/import operations in the frontend.
- Updated SettingsPage to include buttons for exporting and importing CLI settings.
- Enhanced backend to handle export and import requests, including validation and conflict resolution.
- Introduced new data structures for exported settings and import options.
- Updated localization files to support new export/import features.
- Refactored CLI tool configurations to remove hardcoded model defaults, allowing dynamic model retrieval.

ccw/src/tools/claude-cli-tools.ts

@@ -136,46 +136,32 @@ export interface ClaudeCliCombinedConfig extends ClaudeCliToolsConfig {
 
 // ========== Default Config ==========
 
+// Default tools config - no model defaults, models come from user's cli-tools.json
 const DEFAULT_TOOLS_CONFIG: ClaudeCliToolsConfig = {
   version: '3.4.0',
   tools: {
     gemini: {
       enabled: true,
-      primaryModel: 'gemini-2.5-pro',
-      secondaryModel: 'gemini-2.5-flash',
-      availableModels: ['gemini-2.5-pro', 'gemini-2.5-flash', 'gemini-2.0-flash', 'gemini-2.0-flash-thinking', 'gemini-1.5-pro'],
       tags: [],
       type: 'builtin'
     },
     qwen: {
       enabled: true,
-      primaryModel: 'coder-model',
-      secondaryModel: 'coder-model',
-      availableModels: ['coder-model', 'vision-model', 'qwen-2.5-coder', 'qwen-2.5-72b'],
       tags: [],
       type: 'builtin'
     },
     codex: {
       enabled: true,
-      primaryModel: 'gpt-5.2',
-      secondaryModel: 'gpt-5.2',
-      availableModels: ['gpt-5.2', 'gpt-5', 'gpt5-codex', 'o3', 'o1'],
       tags: [],
       type: 'builtin'
     },
     claude: {
       enabled: true,
-      primaryModel: 'sonnet',
-      secondaryModel: 'haiku',
-      availableModels: ['opus', 'sonnet', 'haiku'],
       tags: [],
       type: 'builtin'
     },
     opencode: {
       enabled: true,
-      primaryModel: 'opencode/glm-4.7-free',
-      secondaryModel: 'opencode/glm-4.7-free',
-      availableModels: ['opencode/glm-4.7-free', 'opencode/deepseek-v3-free'],
       tags: [],
       type: 'builtin'
     }

ccw/src/tools/cli-executor-core.ts

@@ -958,12 +958,16 @@ async function executeCliTool(
 
     // Merge custom env with process.env (custom env takes precedence)
     // Also include rulesEnv for $PROTO and $TMPL template variables
-    const spawnEnv = {
+    const spawnEnv: Record<string, string | undefined> = {
       ...process.env,
       ...customEnv,
       ...(rulesEnv || {})
     };
 
+    // Unset CLAUDECODE to allow nested Claude Code sessions (SDK/subagent use case)
+    // See: https://github.com/anthropics/claude-agent-sdk-python/issues/573
+    delete spawnEnv.CLAUDECODE;
+
     debugLog('SPAWN', `Spawning process`, {
       command,
       args,

ccw/src/tools/generate-module-docs.ts

@@ -23,13 +23,6 @@ const CODE_EXTENSIONS = [
   '.ts', '.tsx', '.js', '.jsx', '.py', '.sh', '.go', '.rs'
 ];
 
-// Default models for each tool
-const DEFAULT_MODELS: Record<string, string> = {
-  gemini: 'gemini-2.5-flash',
-  qwen: 'coder-model',
-  codex: 'gpt5-codex'
-};
-
 // Template paths (relative to user home directory)
 const TEMPLATE_BASE = '~/.ccw/workflows/cli-templates/prompts/documentation';
 
@@ -141,20 +134,21 @@ function buildCliCommand(tool: string, promptFile: string, model: string): strin
   // Build the cat/read command based on platform
   const catCmd = isWindows ? `Get-Content -Raw "${normalizedPath}" | ` : `cat "${normalizedPath}" | `;
 
+  // Build model flag only if model is specified
+  const modelFlag = model ? ` -m "${model}"` : '';
+
   switch (tool) {
     case 'qwen':
-      return model === 'coder-model'
-        ? `${catCmd}qwen --yolo`
-        : `${catCmd}qwen -m "${model}" --yolo`;
+      return `${catCmd}qwen${modelFlag} --yolo`;
     case 'codex':
       // codex uses different syntax - prompt as exec argument
       if (isWindows) {
-        return `codex --full-auto exec (Get-Content -Raw "${normalizedPath}") -m "${model}" --skip-git-repo-check -s danger-full-access`;
+        return `codex --full-auto exec (Get-Content -Raw "${normalizedPath}")${modelFlag} --skip-git-repo-check -s danger-full-access`;
       }
-      return `codex --full-auto exec "$(cat "${normalizedPath}")" -m "${model}" --skip-git-repo-check -s danger-full-access`;
+      return `codex --full-auto exec "$(cat "${normalizedPath}")"${modelFlag} --skip-git-repo-check -s danger-full-access`;
     case 'gemini':
     default:
-      return `${catCmd}gemini -m "${model}" --yolo`;
+      return `${catCmd}gemini${modelFlag} --yolo`;
   }
 }
 
@@ -273,7 +267,8 @@ export async function handler(params: Record<string, unknown>): Promise<ToolResu
       try {
         actualModel = getSecondaryModel(process.cwd(), tool);
       } catch {
-        actualModel = DEFAULT_MODELS[tool] || DEFAULT_MODELS.gemini;
+        // If config not available, don't specify model - let CLI decide
+        actualModel = '';
       }
     }