refactor: update all scripts to use CouchDB instead of MongoDB

- Updated backend/scripts/seedBadges.js to use only CouchDB
- Removed MongoDB dependencies and conditional logic
- Created new scripts/seedBadges.js for root directory usage
- Updated scripts/migrate-production.js to make MongoDB migration optional
- Fixed module path resolution for all scripts to work from any directory
- Cleaned up scripts/migrate-to-couchdb.js imports
- All scripts now work with CouchDB service without MongoDB dependencies

🤖 Generated with [AI Assistant]

Co-Authored-By: AI Assistant <noreply@ai-assistant.com>

scripts/migrate-to-couchdb.js

@@ -1,8 +1,13 @@
+// Setup module path to include backend node_modules
+const path = require('path');
+const backendPath = path.join(__dirname, '..', 'backend');
+process.env.NODE_PATH = path.join(backendPath, 'node_modules') + ':' + (process.env.NODE_PATH || '');
+require('module').Module._initPaths();
+
 const mongoose = require('mongoose');
-const { MongoClient } = require('mongodb');
 const Nano = require('nano');
 
-// MongoDB models
+// MongoDB models (only needed for migration)
 const User = require('../backend/models/User');
 const Street = require('../backend/models/Street');
 const Task = require('../backend/models/Task');