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/ayanami_uniform_azur__illus.json

@@ -0,0 +1,21 @@
+{
+  "look_id": "ayanami_uniform_azur__illus",
+  "look_name": "Ayanami Uniform Azur Illus",
+  "character_id": "",
+  "positive": "Ayanami uniform, ayanami_(azur_lane), grey_hair, long_hair, red_eyes, animal_ears, mechanical_ears, hair_ornament, school_uniform, serafuku, sleeveless_shirt, detached_sleeves, bare_shoulders, crop_top, navel, yellow_neckerchief, black_choker, blue_skirt, pleated_skirt, white_thighhighs, rudder_footwear",
+  "negative": "lowres, bad_anatomy, bad_hands, text, error, missing_fingers, extra_digit, fewer_digits, cropped, worst_quality, low_quality, normal_quality, jpeg_artifacts, signature, watermark, username, blurry",
+  "lora": {
+    "lora_name": "Illustrious/Looks/Ayanami uniform(azur)-Illus.safetensors",
+    "lora_weight": 1.2,
+    "lora_triggers": "Ayanami uniform",
+    "lora_weight_min": 1.2,
+    "lora_weight_max": 1.2
+  },
+  "tags": [
+    "ayanami_(azur_lane)",
+    "rudder_footwear",
+    "detached_sleeves",
+    "school_uniform",
+    "navel"
+  ]
+}