chore: Update Docker configuration and documentation

### Summary of Changes
- Enhanced `docker-compose` files to include BuildKit compatibility settings for improved caching during builds.
- Updated service definitions to use pre-built images from the specified Docker registry, ensuring consistency across environments.
- Added Docker registry configuration to the `.env` example file for clarity on deployment settings.
- Revised the `README.md` to include instructions for using pre-built images and local development setups, along with Docker compatibility troubleshooting steps.
- Introduced health checks in the `Dockerfile` for the API Docs service to ensure container readiness.

### Expected Results
- Improved build performance and deployment clarity, facilitating easier setup for new developers and enhancing overall project maintainability.

docker-compose.yml

@@ -3,7 +3,7 @@ version: '3.8'
 services:
   # Database
   postgres:
-    image: postgres:latest
+    image: postgres:14
     environment:
       POSTGRES_DB: labfusion
       POSTGRES_USER: labfusion
@@ -27,9 +27,7 @@ services:
 
   # Java Spring Boot API Gateway
   api-gateway:
-    build:
-      context: ./services/api-gateway
-      dockerfile: Dockerfile
+    image: gittea.kammenstraatha.duckdns.org/admin/api-gateway:main
     ports:
       - "8080:8080"
     environment:
@@ -38,6 +36,7 @@ services:
       - SPRING_DATASOURCE_PASSWORD=labfusion_password
       - REDIS_HOST=redis
       - REDIS_PORT=6379
+      - SPRING_PROFILES_ACTIVE=prod
     depends_on:
       - postgres
       - redis
@@ -46,9 +45,7 @@ services:
 
   # Python FastAPI Service Adapters
   service-adapters:
-    build:
-      context: ./services/service-adapters
-      dockerfile: Dockerfile
+    image: gittea.kammenstraatha.duckdns.org/admin/service-adapters:main
     ports:
       - "8000:8000"
     environment:
@@ -63,9 +60,7 @@ services:
 
   # React Frontend
   frontend:
-    build:
-      context: ./frontend
-      dockerfile: Dockerfile
+    image: gittea.kammenstraatha.duckdns.org/admin/frontend:main
     ports:
       - "3000:3000"
     environment:
@@ -78,9 +73,7 @@ services:
 
   # API Documentation Service
   api-docs:
-    build:
-      context: ./services/api-docs
-      dockerfile: Dockerfile
+    image: gittea.kammenstraatha.duckdns.org/admin/api-docs:cache
     ports:
       - "8083:8083"
     environment:
@@ -97,6 +90,7 @@ services:
 volumes:
   postgres_data:
   redis_data:
+  maven_cache:
 
 networks:
   labfusion-network: