feat(template): add CineDock v3 template

stacks/cinedock/docker-compose.yml

@@ -0,0 +1,25 @@
+services:
+  cinedock:
+    image: ghcr.io/cinedock/cinedock:4.1.6
+    restart: unless-stopped
+    environment:
+      CONFIG_DIR: /config
+      PORT: "8945"
+      TMDB_API_KEY: ${TMDB_API_KEY:-}
+    ports:
+      - "${CINEDOCK_PORT:-8945}:8945"
+    volumes:
+      - cinedock-config:/config
+    healthcheck:
+      test:
+        - CMD
+        - python
+        - -c
+        - "import urllib.request; urllib.request.urlopen('http://127.0.0.1:8945/', timeout=5)"
+      interval: 30s
+      timeout: 5s
+      retries: 5
+      start_period: 15s
+
+volumes:
+  cinedock-config:

templates.json

@@ -1875,6 +1875,31 @@
         "url": "https://github.com/portainer/templates",
         "stackfile": "edge/sorba-sde/docker-compose.yml"
       }
+    },
+    {
+      "id": 77,
+      "type": 3,
+      "title": "CineDock",
+      "description": "A cinematic, television-first interface for the Emby, Jellyfin or Plex server you already run.",
+      "note": "After deployment, open http://<host>:<CINEDOCK_PORT> (8945 by default) and follow CineDock's setup wizard to connect your existing media server. CineDock does not scan, copy or change media files. The TMDB API key is optional.",
+      "categories": ["media"],
+      "platform": "linux",
+      "logo": "https://raw.githubusercontent.com/cinedock/unraid-templates/main/cinedock-icon.png",
+      "env": [
+        {
+          "name": "CINEDOCK_PORT",
+          "label": "Published web port",
+          "default": "8945"
+        },
+        {
+          "name": "TMDB_API_KEY",
+          "label": "TMDB API key (optional)"
+        }
+      ],
+      "repository": {
+        "url": "https://github.com/portainer/templates",
+        "stackfile": "stacks/cinedock/docker-compose.yml"
+      }
     }
   ]
 }