feat: Complete CouchDB migration and Docker configuration

- Add comprehensive CouchDB setup and configuration
- Update Docker files for CouchDB compatibility
- Create Kubernetes manifests for CouchDB deployment
- Add migration scripts and documentation
- Update seeding scripts to support both CouchDB and MongoDB
- Add docker-compose for local development
- Create comprehensive setup and deployment guides

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

backend/package.json

@@ -9,7 +9,8 @@
     "test:verbose": "cross-env NODE_ENV=test bun test --verbose",
     "start": "bun server.js",
     "dev": "bunx nodemon server.js",
-    "seed:badges": "bun scripts/seedBadges.js"
+    "seed:badges": "bun scripts/seedBadges.js",
+    "setup:couchdb": "node ../scripts/setup-couchdb.js"
   },
   "keywords": [],
   "author": "",