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

🤖 Generated with [AI Assistant]

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

node_modules/mongoose/lib/helpers/omitUndefined.js

@@ -0,0 +1,20 @@
+'use strict';
+
+module.exports = function omitUndefined(val) {
+  if (val == null || typeof val !== 'object') {
+    return val;
+  }
+  if (Array.isArray(val)) {
+    for (let i = val.length - 1; i >= 0; --i) {
+      if (val[i] === undefined) {
+        val.splice(i, 1);
+      }
+    }
+  }
+  for (const key of Object.keys(val)) {
+    if (val[key] === void 0) {
+      delete val[key];
+    }
+  }
+  return val;
+};