Update Keira3 to use Docker Hub image with web API support

Replaces local build with uprightbass360/keira3:latest image that includes:
- Frontend Angular app served by nginx
- Backend Node.js API service for database operations
- Proper web browser compatibility via HTTP API bridge
- Resolves database connection issues in containerized web deployment

acore-unified.yml

@@ -348,11 +348,7 @@ services:
 
   # Keira3 Database Editor (Production Ready)
   ac-keira3:
-    build:
-      context: /home/upb/src/Keira3
-      dockerfile: Dockerfile
-      target: production
-    image: keira3:latest
+    image: uprightbass360/keira3:latest
     container_name: ac-keira3
     restart: unless-stopped
     depends_on: