perf: build frontend once on runner instead of in Docker

- [x] Remove Docker compilation from server, scanner, migrate Dockerfiles
- [x] Use pre-built binaries injected by GoReleaser instead
- [x] Delete separate gateway container and merge into frontend
- [x] Update .goreleaser.yaml to reference pre-built binaries
- [x] Simplify Kubernetes deployment to remove gateway service
- [x] Simplify docker-compose to remove gateway container
- [x] Add backend proxy configuration to frontend

docker-compose.example.yaml

@@ -2,7 +2,7 @@ version: '3.8'
 
 # GoHoarder - Unified Deployment Example
 # This docker-compose file demonstrates deploying all GoHoarder services
-# under a single domain using the gateway reverse proxy
+# The frontend includes integrated reverse proxy to the backend
 
 services:
   # Backend - Main application server
@@ -39,7 +39,7 @@ services:
       retries: 3
       start_period: 5s
 
-  # Frontend - Web dashboard
+  # Frontend - Web dashboard with integrated reverse proxy
   gohoarder-frontend:
     image: ghcr.io/lukaszraczylo/gohoarder-frontend:latest
     container_name: gohoarder-frontend
@@ -49,8 +49,19 @@ services:
       - API_BASE_URL=/api
       - APP_VERSION=1.0.0
       - APP_NAME=GoHoarder
+      # Backend proxy configuration (frontend includes nginx reverse proxy)
+      - BACKEND_HOST=gohoarder-server
+      - BACKEND_PORT=8080
+      - SERVER_NAME=hoarder.i.raczylo.com
+    ports:
+      # Map to host port 80 (HTTP)
+      - "80:80"
+      # Map to host port 443 (HTTPS) - uncomment if using SSL
+      # - "443:443"
     networks:
       - gohoarder-internal
+    depends_on:
+      - gohoarder-server
     healthcheck:
       test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost/"]
       interval: 30s
@@ -82,41 +93,6 @@ services:
     # profiles:
     #   - scanner
 
-  # Gateway - Nginx reverse proxy
-  gohoarder-gateway:
-    image: ghcr.io/lukaszraczylo/gohoarder-gateway:latest
-    container_name: gohoarder-gateway
-    restart: unless-stopped
-    environment:
-      # Backend service connection
-      - BACKEND_HOST=gohoarder-server
-      - BACKEND_PORT=8080
-      # Frontend service connection
-      - FRONTEND_HOST=gohoarder-frontend
-      - FRONTEND_PORT=80
-      # Server configuration
-      - SERVER_NAME=hoarder.i.raczylo.com
-    ports:
-      # Map to host port 80 (HTTP)
-      - "80:80"
-      # Map to host port 443 (HTTPS) - uncomment if using SSL
-      # - "443:443"
-    networks:
-      - gohoarder-internal
-    depends_on:
-      - gohoarder-server
-      - gohoarder-frontend
-    # Uncomment if using custom SSL certificates
-    # volumes:
-    #   - ./ssl/cert.pem:/etc/nginx/ssl/cert.pem:ro
-    #   - ./ssl/key.pem:/etc/nginx/ssl/key.pem:ro
-    healthcheck:
-      test: ["CMD", "wget", "--quiet", "--tries=1", "--spider", "http://localhost/health"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 5s
-
 networks:
   gohoarder-internal:
     driver: bridge
@@ -144,7 +120,7 @@ volumes:
 # - Metrics: http://localhost/metrics
 #
 # For production:
-# - Enable HTTPS in the gateway container
+# - Enable HTTPS in the frontend container (add SSL certificates to nginx)
 # - Set up proper SSL certificates
 # - Configure firewall rules
 # - Set appropriate resource limits