refactor: standardize service naming and migrate track to umami

Service Naming Standardization:
- Renamed all compose service names to use consistent `{project}_app` pattern
- awsm: `awesome` → `awesome_app`
- gotify: `gotify` → `gotify_app` (also updated container_name)
- proxy: `traefik` → `traefik_app`
- vpn: `wg-easy` → `vpn_app`
- sexy: `directus` → `sexy_api`, `frontend` → `sexy_frontend`

Track to Umami Migration:
- Removed track/ directory (legacy naming)
- Created umami/ directory with updated compose.yaml
- Service now named `umami_app` following naming convention
- Configuration unchanged: PostgreSQL backend, Redis caching, Traefik routing
- Uses TRACK_* environment variables for compatibility with arty.yml

Benefits:
- Consistent naming makes service identification easier across projects
- Aligns with container_name conventions ({PROJECT}_app pattern)
- Improves docker ps readability and service management
- Umami directory name matches actual product name

umami/compose.yaml

@@ -0,0 +1,44 @@
+services:
+  umami_app:
+    image: ${TRACK_DOCKER_IMAGE}
+    container_name: ${TRACK_COMPOSE_PROJECT_NAME}_app
+    restart: unless-stopped
+    environment:
+      TZ: ${TIMEZONE:-Europe/Amsterdam}
+      
+      # Database Configuration
+      DATABASE_URL: postgresql://${DB_USER}:${DB_PASSWORD}@${CORE_DB_HOST}:${CORE_DB_PORT}/${TRACK_DB_NAME}
+      DATABASE_TYPE: postgresql
+      
+      # Application Secret
+      APP_SECRET: ${TRACK_APP_SECRET}
+      
+      # Redis Cache Integration
+      REDIS_URL: redis://${CORE_REDIS_HOST}:${CORE_REDIS_PORT}
+      CACHE_ENABLED: true
+      
+      
+    networks:
+      - compose_network
+      
+    healthcheck:
+      test: ["CMD-SHELL", "curl -f http://localhost:3000/api/heartbeat || exit 1"]
+      interval: 30s
+      timeout: 10s
+      retries: 5
+      start_period: 40s
+      
+    labels:
+      # Traefik Configuration
+      - 'traefik.enable=${TRACK_TRAEFIK_ENABLED:-true}'
+      
+      # HTTP to HTTPS redirect
+      - 'traefik.http.middlewares.${TRACK_COMPOSE_PROJECT_NAME}-redirect-web-secure.redirectscheme.scheme=https'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web.middlewares=${TRACK_COMPOSE_PROJECT_NAME}-redirect-web-secure'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web.rule=Host(`${TRACK_TRAEFIK_HOST}`)'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web.entrypoints=web'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web-secure.rule=Host(`${TRACK_TRAEFIK_HOST}`)'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web-secure.tls.certresolver=resolver'
+      - 'traefik.http.routers.${TRACK_COMPOSE_PROJECT_NAME}-web-secure.entrypoints=web-secure'
+      - 'traefik.http.services.${TRACK_COMPOSE_PROJECT_NAME}-web-secure.loadbalancer.server.port=3000'
+      - 'traefik.docker.network=${NETWORK_NAME}'