Clean up whitespace in CouchDB factory and add coverage directory to gitignore

.gitignore

@@ -37,3 +37,6 @@ couchdb-data/
 test-results/
 playwright-report/
 playwright/.cache/
+
+# Test coverage reports
+coverage/

services/couchdb.factory.ts

@@ -21,7 +21,6 @@ const createDbService = () => {
   if (isProduction()) {
     try {
       // Use dynamic require to avoid TypeScript resolution issues
-
       const {
         CouchDBService: RealCouchDBService,
       } = require('./couchdb.production');