Fix docker path on Synology NAS

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.gitea/workflows/deploy.yml

@@ -21,7 +21,7 @@ jobs:
         run: printf 'DB_PASSWORD=%s\n' '${{ secrets.DB_PASSWORD }}' > ${{ secrets.DEPLOY_DIR }}/.env
 
       - name: Build & Deploy
-        run: docker compose -f ${{ secrets.DEPLOY_DIR }}/docker-compose.yml up --build -d
+        run: /usr/local/bin/docker compose -f ${{ secrets.DEPLOY_DIR }}/docker-compose.yml up --build -d
 
       - name: Health check
         run: |