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/obsidian-livesync/compose.yml

@@ -1,27 +0,0 @@
-services:
-  obsidian-livesync:
-    image: oleduc/docker-obsidian-livesync-couchdb:latest
-    container_name: obsidian-livesync
-    restart: unless-stopped
-    ports:
-      - "127.0.0.1:5984:5984"
-    volumes:
-      - obsidian_data:/opt/couchdb/data
-    environment:
-      - COUCHDB_USER=${OBSIDIAN_USER:-obsidian}
-      - COUCHDB_PASSWORD=${SECRET:obsidian-password}
-    networks:
-      - obsidian-network
-    healthcheck:
-      test: ["CMD", "curl", "-f", "http://localhost:5984/_up"]
-      interval: 30s
-      timeout: 10s
-      retries: 3
-      start_period: 15s
-
-volumes:
-  obsidian_data:
-
-networks:
-  obsidian-network:
-    driver: bridge