ci: align deployment on Kuby (Docker + rsync + SSH key + healthcheck + rollback)

- Add HTTP /health endpoint (aiohttp) for Docker healthcheck + post-deploy check
- Dockerfile HEALTHCHECK hits /health; docker-compose exposes 1890, container vision-bot
- scripts/deploy_runner.sh runs on .117 (docker compose build/restart)
- .forgejo/workflows/deploy.yml: single job on omhk-deploy runner (clone, syntax test,
  rsync, deploy, health check, auto-rollback) like Kuby
- .forgejo/workflows/ci.yml: single job (ruff + pytest) on dev/PR

docker-compose.yml

@@ -3,15 +3,20 @@ services:
     build:
       context: .
       dockerfile: Dockerfile
-    container_name: vision-studio
+    image: vision-vision
+    container_name: vision-bot
     restart: unless-stopped
     env_file: .env
     environment:
       - VISION_INSTANCE=prod
+      - HEALTH_PORT=1890
     dns:
       - 1.1.1.1
       - 8.8.8.8
+    ports:
+      - "1890:1890"
     volumes:
+      - .:/app
       - vision-data:/app/data
       - vision-logs:/app/logs
     deploy: