fix(websearch): install hook for settings profiles

- ensure profile hook injection installs the transformer binary before writing the command

- keep migration marker cleanup in the installer to avoid a circular import

- add a regression test for isolated CCS_HOME settings profiles

src/utils/websearch/hook-installer.ts

@@ -10,9 +10,8 @@ import * as fs from 'fs';
 import * as path from 'path';
 import { info, warn } from '../ui';
 import { getWebSearchConfig } from '../../config/unified-config-loader';
-import { getCcsHooksDir } from '../config-manager';
+import { getCcsDir, getCcsHooksDir } from '../config-manager';
 import { getHookPath } from './hook-config';
-import { removeMigrationMarker } from './profile-hook-injector';
 
 // Re-export from hook-config for backward compatibility
 export { getHookPath, getWebSearchHookConfig } from './hook-config';
@@ -20,6 +19,23 @@ export { getHookPath, getWebSearchHookConfig } from './hook-config';
 // Hook file name
 const WEBSEARCH_HOOK = 'websearch-transformer.cjs';
 
+function getMigrationMarkerPath(): string {
+  return path.join(getCcsDir(), '.hook-migrated');
+}
+
+export function removeMigrationMarker(): void {
+  try {
+    const markerPath = getMigrationMarkerPath();
+    if (fs.existsSync(markerPath)) {
+      fs.unlinkSync(markerPath);
+    }
+  } catch (error) {
+    if (process.env.CCS_DEBUG) {
+      console.error(warn(`removeMigrationMarker failed: ${(error as Error).message}`));
+    }
+  }
+}
+
 /**
  * Check if WebSearch hook is installed
  */

src/utils/websearch/profile-hook-injector.ts

@@ -15,6 +15,7 @@ import { getWebSearchConfig } from '../../config/unified-config-loader';
 import { removeHookConfig } from './hook-config';
 import { getCcsDir } from '../config-manager';
 import { isCcsWebSearchHook, deduplicateCcsHooks } from './hook-utils';
+import { installWebSearchHook } from './hook-installer';
 
 // Valid profile name pattern (alphanumeric, dash, underscore only)
 const VALID_PROFILE_NAME = /^[a-zA-Z0-9_-]+$/;
@@ -100,6 +101,14 @@ export function ensureProfileHooks(profileName: string): boolean {
       fs.mkdirSync(ccsDir, { recursive: true, mode: 0o700 });
     }
 
+    // Keep the injected command target valid for all profile types, not just CLIProxy.
+    if (!installWebSearchHook() && !fs.existsSync(getHookPath())) {
+      if (process.env.CCS_DEBUG) {
+        console.error(warn('WebSearch hook binary is missing and could not be installed'));
+      }
+      return false;
+    }
+
     const settingsPath = path.join(ccsDir, `${profileName}.settings.json`);
 
     // Read existing settings or create empty