fix(firebase): Fix ESM import of firebase-functions/logger

Replace default import with namespace import to work correctly when loaded
as ESM via Node.js 20.19+ require(esm) compatibility layer. The logger
subpath only exports named exports, causing a SyntaxError with default import.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: leomp12

packages/firebase/src/config.ts

@@ -4,7 +4,7 @@ import { existsSync, readFileSync } from 'node:fs';
 import { AsyncLocalStorage } from 'node:async_hooks';
 import * as dotenv from 'dotenv';
 import _config, { BaseConfig } from '@cloudcommerce/config';
-import _logger from 'firebase-functions/logger';
+import * as _logger from 'firebase-functions/logger';
 
 if (
   !process.env.DEPLOY_REGION