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/fetharja_illu_nvwls_v2.json

@@ -0,0 +1,34 @@
+{
+  "look_id": "fetharja_illu_nvwls_v2",
+  "look_name": "Fetharja Illu Nvwls V2",
+  "character_id": "",
+  "positive": "tharja_(fire_emblem), black_hair, two_side_up, long_hair, blunt_bangs, purple_eyes, gold_tiara, black_cape, two-sided_cape, gorget, bodystocking, bridal_gauntlets, gold_bracelet, black_shirt, crop_top, cleavage, pelvic_curtain, thighlet",
+  "negative": "short_hair, red_eyes, skirt",
+  "lora": {
+    "lora_name": "Illustrious/Looks/fetharja-illu-nvwls-v2.safetensors",
+    "lora_weight": 0.8,
+    "lora_triggers": "defthj",
+    "lora_weight_min": 0.8,
+    "lora_weight_max": 0.8
+  },
+  "tags": [
+    "tharja_(fire_emblem)",
+    "black_hair",
+    "two_side_up",
+    "long_hair",
+    "blunt_bangs",
+    "purple_eyes",
+    "gold_tiara",
+    "black_cape",
+    "two-sided_cape",
+    "gorget",
+    "bodystocking",
+    "bridal_gauntlets",
+    "gold_bracelet",
+    "black_shirt",
+    "crop_top",
+    "cleavage",
+    "pelvic_curtain",
+    "thighlet"
+  ]
+}