Add danbooru-mcp auto-start, git sync, status API endpoints, navbar status indicators, and LLM format retry

- app.py: add subprocess import; add _ensure_mcp_repo() to clone/pull
  danbooru-mcp from https://git.liveaodh.com/aodhan/danbooru-mcp into
  tools/danbooru-mcp/ at startup; add ensure_mcp_server_running() which
  calls _ensure_mcp_repo() then starts the Docker container if not running;
  add GET /api/status/comfyui and GET /api/status/mcp health endpoints;
  fix call_llm() to retry up to 3 times on unexpected response format
  (KeyError/IndexError), logging the raw response and prompting the LLM
  to respond with valid JSON before each retry
- templates/layout.html: add ComfyUI and MCP status dot indicators to
  navbar; add polling JS that checks both endpoints on load and every 30s
- static/style.css: add .service-status, .status-dot, .status-ok,
  .status-error, .status-checking styles and status-pulse keyframe animation
- .gitignore: add tools/ to exclude the cloned danbooru-mcp repo

data/looks/hilda_pokemon_illust_scarxzys.json

@@ -0,0 +1,21 @@
+{
+  "look_id": "hilda_pokemon_illust_scarxzys",
+  "look_name": "Hilda Pokemon Illust Scarxzys",
+  "character_id": "",
+  "positive": "hilda_(pokemon), 1girl, brown_hair, blue_eyes, high_ponytail, long_hair, curly_hair, sidelocks, antenna_hair, pink_hat, baseball_cap, poke_ball_print, white_tank_top, black_vest, sleeveless, denim_shorts, blue_shorts, short_shorts, exposed_pocket, wristband, black_socks, black_boots, lace-up_boots",
+  "negative": "short_hair, red_eyes, skirt, dress, low_twintails",
+  "lora": {
+    "lora_name": "Illustrious/Looks/hilda_pokemon_illust_scarxzys.safetensors",
+    "lora_weight": 0.8,
+    "lora_triggers": "hilda (pokemon)",
+    "lora_weight_min": 0.8,
+    "lora_weight_max": 0.8
+  },
+  "tags": [
+    "pokemon",
+    "video_game_character",
+    "unova_region",
+    "nintendo",
+    "anime_style"
+  ]
+}