fix: Rename compose.yml to compose.yaml for Komodo compatibility

Komodo Resource Sync expects compose.yaml (not .yml)
All 22 stack compose files renamed for consistency

stacks/nextcloud-aio/compose.yml

@@ -1,29 +0,0 @@
-services:
-  nextcloud-aio:
-    image: nextcloud/all-in-one:latest
-    container_name: nextcloud-aio
-    restart: unless-stopped
-    ports:
-      - "127.0.0.1:8080:8080"
-    volumes:
-      - nextcloud_data:/var/www/html
-      - nextcloud_apps:/var/www/html/custom_apps
-    environment:
-      - APACHE_PORT=8080
-      - NEXTCLOUD_DATADIR=/var/www/html/data
-    networks:
-      - nextcloud-network
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:8080/status.php"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 60s
-
-volumes:
-  nextcloud_data:
-  nextcloud_apps:
-
-networks:
-  nextcloud-network:
-    driver: bridge