chore: remove obsolete compose version keys

compose/demo.vps.override.yml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 services:
   postgres:
     ports:

compose/demo.yml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 # Demo deployment - includes demo users, seed data, and restricted actions
 # Usage: podman-compose --env-file compose/.env.demo -f compose/demo.yml up -d
 # Reset: podman-compose --env-file compose/.env.demo -f compose/demo.yml down -v; podman-compose --env-file compose/.env.demo -f compose/demo.yml up -d

compose/dev.yml

@@ -1,5 +1,3 @@
-version: "3.9"
-
 services:
   postgres:
     image: postgres:16

compose/production.yml

@@ -1,63 +1,61 @@
-version: "3.9"
-
-# Production deployment - clean instance without demo data
-# Usage: podman-compose -f compose/production.yml up -d
-
-services:
-  postgres:
-    image: postgres:16
-    container_name: likwid-prod-db
-    restart: unless-stopped
-    ports:
-      - "${DB_PORT:-5432}:5432"
-    environment:
-      POSTGRES_USER: ${POSTGRES_USER:-likwid}
-      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
-      POSTGRES_DB: ${POSTGRES_DB:-likwid_prod}
-    volumes:
-      - likwid_prod_data:/var/lib/postgresql/data
-    healthcheck:
-      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-likwid}"]
-      interval: 10s
-      timeout: 5s
-      retries: 5
-
-  backend:
-    build:
-      context: ../backend
-      dockerfile: Dockerfile
-      args:
-        INCLUDE_DEMO_SEED: "false"
-    container_name: likwid-prod-backend
-    restart: unless-stopped
-    ports:
-      - "${BACKEND_PORT:-3000}:3000"
-    environment:
-      DATABASE_URL: postgres://${POSTGRES_USER:-likwid}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-likwid_prod}
-      JWT_SECRET: ${JWT_SECRET}
-      SERVER_HOST: 0.0.0.0
-      SERVER_PORT: 3000
-      DEMO_MODE: "false"
-      RUST_LOG: info
-    depends_on:
-      postgres:
-        condition: service_healthy
-
-  frontend:
-    build:
-      context: ../frontend
-      dockerfile: Dockerfile
-      args:
-        API_BASE: ${API_BASE:-http://localhost:3000}
-    container_name: likwid-prod-frontend
-    restart: unless-stopped
-    ports:
-      - "${FRONTEND_PORT:-4321}:4321"
-    environment:
-      INTERNAL_API_BASE: http://backend:3000
-      API_BASE: ${API_BASE:-http://localhost:3000}
-    depends_on:
-      - backend
-
-volumes:
-  likwid_prod_data:
+# Production deployment - clean instance without demo data
+# Usage: podman-compose -f compose/production.yml up -d
+
+services:
+  postgres:
+    image: postgres:16
+    container_name: likwid-prod-db
+    restart: unless-stopped
+    ports:
+      - "${DB_PORT:-5432}:5432"
+    environment:
+      POSTGRES_USER: ${POSTGRES_USER:-likwid}
+      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD}
+      POSTGRES_DB: ${POSTGRES_DB:-likwid_prod}
+    volumes:
+      - likwid_prod_data:/var/lib/postgresql/data
+    healthcheck:
+      test: ["CMD-SHELL", "pg_isready -U ${POSTGRES_USER:-likwid}"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+
+  backend:
+    build:
+      context: ../backend
+      dockerfile: Dockerfile
+      args:
+        INCLUDE_DEMO_SEED: "false"
+    container_name: likwid-prod-backend
+    restart: unless-stopped
+    ports:
+      - "${BACKEND_PORT:-3000}:3000"
+    environment:
+      DATABASE_URL: postgres://${POSTGRES_USER:-likwid}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB:-likwid_prod}
+      JWT_SECRET: ${JWT_SECRET}
+      SERVER_HOST: 0.0.0.0
+      SERVER_PORT: 3000
+      DEMO_MODE: "false"
+      RUST_LOG: info
+    depends_on:
+      postgres:
+        condition: service_healthy
+
+  frontend:
+    build:
+      context: ../frontend
+      dockerfile: Dockerfile
+      args:
+        API_BASE: ${API_BASE:-http://localhost:3000}
+    container_name: likwid-prod-frontend
+    restart: unless-stopped
+    ports:
+      - "${FRONTEND_PORT:-4321}:4321"
+    environment:
+      INTERNAL_API_BASE: http://backend:3000
+      API_BASE: ${API_BASE:-http://localhost:3000}
+    depends_on:
+      - backend
+
+volumes:
+  likwid_prod_data: