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/ootzelda_illu_nvwls_v1.json

@@ -0,0 +1,36 @@
+{
+  "look_id": "ootzelda_illu_nvwls_v1",
+  "look_name": "Ootzelda Illu Nvwls V1",
+  "character_id": "",
+  "positive": "princess_zelda, the_legend_of_zelda:_ocarina_of_time, 1girl, solo, blonde_hair, long_hair, sidelocks, blue_eyes, pointy_ears, gold_tiara, forehead_jewel, earrings, gold_armor, shoulder_armor, long_dress, white_dress, pink_tunic, sleeveless_tunic, tabard, triforce_print, elbow_gloves, white_gloves",
+  "negative": "short_hair, red_eyes, worst quality, low quality, bad anatomy, watermark",
+  "lora": {
+    "lora_name": "Illustrious/Looks/ootzelda-illu-nvwls-v1.safetensors",
+    "lora_weight": 0.8,
+    "lora_triggers": "ocarzld",
+    "lora_weight_min": 0.8,
+    "lora_weight_max": 0.8
+  },
+  "tags": [
+    "princess_zelda",
+    "the_legend_of_zelda:_ocarina_of_time",
+    "blonde_hair",
+    "long_hair",
+    "sidelocks",
+    "blue_eyes",
+    "pointy_ears",
+    "gold_tiara",
+    "forehead_jewel",
+    "earrings",
+    "gold_armor",
+    "shoulder_armor",
+    "long_dress",
+    "white_dress",
+    "pink_tunic",
+    "sleeveless_tunic",
+    "tabard",
+    "triforce_print",
+    "elbow_gloves",
+    "white_gloves"
+  ]
+}