refactor: shorten container names to slc-* prefix

Dev containers:
- spotlightcam-nginx → slc-proxy-dev
- spotlightcam-backend → slc-backend-dev
- spotlightcam-db → slc-db-dev
- spotlightcam-frontend → slc-frontend-dev

Prod containers:
- spotlightcam-nginx-prod → slc-proxy-prod
- spotlightcam-backend-prod → slc-backend-prod
- spotlightcam-db-prod → slc-db-prod
- spotlightcam-frontend-prod → slc-frontend-prod

docker-compose.yml

@@ -10,7 +10,7 @@ services:
   # ============================================
   nginx:
     image: nginx:alpine
-    container_name: spotlightcam-nginx
+    container_name: slc-proxy-dev
     depends_on:
       - frontend
       - backend
@@ -24,7 +24,7 @@ services:
 
   nginx-prod:
     image: nginx:alpine
-    container_name: spotlightcam-nginx-prod
+    container_name: slc-proxy-prod
     depends_on:
       - frontend-prod
       - backend-prod
@@ -50,7 +50,7 @@ services:
     build:
       context: ./frontend
       dockerfile: Dockerfile
-    container_name: spotlightcam-frontend
+    container_name: slc-frontend-dev
     expose:
       - "5173"
     volumes:
@@ -72,7 +72,7 @@ services:
       dockerfile: Dockerfile.prod
       args:
         - NODE_ENV=production
-    container_name: spotlightcam-frontend-prod
+    container_name: slc-frontend-prod
     expose:
       - "5173"
     environment:
@@ -93,7 +93,7 @@ services:
     build:
       context: ./backend
       dockerfile: Dockerfile
-    container_name: spotlightcam-backend
+    container_name: slc-backend-dev
     env_file:
       - ./backend/.env.development
     expose:
@@ -123,7 +123,7 @@ services:
       dockerfile: Dockerfile.prod
       args:
         - NODE_ENV=production
-    container_name: spotlightcam-backend-prod
+    container_name: slc-backend-prod
     env_file:
       - ./backend/.env.production
     expose:
@@ -162,7 +162,7 @@ services:
   # ============================================
   db:
     image: postgres:15-alpine
-    container_name: spotlightcam-db
+    container_name: slc-db-dev
     environment:
       - POSTGRES_USER=spotlightcam
       - POSTGRES_PASSWORD=spotlightcam123
@@ -176,7 +176,7 @@ services:
 
   db-prod:
     image: postgres:15-alpine
-    container_name: spotlightcam-db-prod
+    container_name: slc-db-prod
     environment:
       - POSTGRES_USER=${POSTGRES_USER:-spotlightcam}
       - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-spotlightcam123}