refactor(websearch): address PR review recommendations

- Add comment in postuninstall.js explaining intentional os.homedir()
- Fix comment in install-command.ts (doesn't touch global settings.json)
- Consolidate duplicate getCcsHooksDir() - export from hook-config.ts
- Add debug logging to silent catch blocks in profile-hook-injector.ts

scripts/postuninstall.js

@@ -12,6 +12,8 @@ const fs = require('fs');
 const path = require('path');
 const os = require('os');
 
+// Note: Uses os.homedir() directly because this script runs during npm uninstall,
+// not in test context. CCS_HOME isolation is for src/ code only.
 const CCS_DIR = path.join(os.homedir(), '.ccs');
 const HOOKS_DIR = path.join(CCS_DIR, 'hooks');
 const MIGRATION_MARKER = path.join(CCS_DIR, '.hook-migrated');

src/commands/install-command.ts

@@ -35,7 +35,7 @@ export async function handleUninstallCommand(): Promise<void> {
 
   let removed = 0;
 
-  // 1. Remove WebSearch hook (file + settings.json)
+  // 1. Remove WebSearch hook file + migration marker (does NOT touch global settings.json)
   const hookRemoved = uninstallWebSearchHook();
   if (hookRemoved) {
     console.log(ok('Removed WebSearch hook'));

src/utils/websearch/hook-config.ts

@@ -22,7 +22,7 @@ const WEBSEARCH_HOOK = 'websearch-transformer.cjs';
 /**
  * Get CCS hooks directory (respects CCS_HOME for test isolation)
  */
-function getCcsHooksDir(): string {
+export function getCcsHooksDir(): string {
   return path.join(getCcsDir(), 'hooks');
 }
 

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 { getHookPath, ensureHookConfig } from './hook-config';
+import { getHookPath, ensureHookConfig, getCcsHooksDir } from './hook-config';
 import { removeMigrationMarker } from './profile-hook-injector';
-import { getCcsDir } from '../config-manager';
 
 // Re-export from hook-config for backward compatibility
 export { getHookPath, getWebSearchHookConfig } from './hook-config';
@@ -20,13 +19,6 @@ export { getHookPath, getWebSearchHookConfig } from './hook-config';
 // Hook file name
 const WEBSEARCH_HOOK = 'websearch-transformer.cjs';
 
-/**
- * Get CCS hooks directory (respects CCS_HOME for test isolation)
- */
-function getCcsHooksDir(): string {
-  return path.join(getCcsDir(), 'hooks');
-}
-
 /**
  * Check if WebSearch hook is installed
  */

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

@@ -209,7 +209,10 @@ function updateHookTimeoutIfNeeded(
     }
 
     return true;
-  } catch {
+  } catch (error) {
+    if (process.env.CCS_DEBUG) {
+      console.error(warn(`updateHookTimeoutIfNeeded failed: ${(error as Error).message}`));
+    }
     return false;
   }
 }
@@ -223,7 +226,9 @@ export function removeMigrationMarker(): void {
     if (fs.existsSync(markerPath)) {
       fs.unlinkSync(markerPath);
     }
-  } catch {
-    // Ignore errors
+  } catch (error) {
+    if (process.env.CCS_DEBUG) {
+      console.error(warn(`removeMigrationMarker failed: ${(error as Error).message}`));
+    }
   }
 }