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/shantaeillustrious1_0jlfo.json

@@ -0,0 +1,30 @@
+{
+  "look_id": "shantaeillustrious1_0jlfo",
+  "look_name": "Shantaeillustrious1 0Jlfo",
+  "character_id": "shantae",
+  "positive": "shantae, 1girl, purple_hair, dark_skin, blue_eyes, pointy_ears, very_long_hair, high_ponytail, harem_pants, red_pants, o-ring_top, red_bikini, midriff, navel, bare_shoulders, gold_jewelry, hoop_earrings, bracer, tiara, sash, choker",
+  "negative": "short_hair, light_skin",
+  "lora": {
+    "lora_name": "Illustrious/Looks/ShantaeIllustrious1.0JLFO.safetensors",
+    "lora_weight": 1.0,
+    "lora_triggers": "shantae",
+    "lora_weight_min": 1.0,
+    "lora_weight_max": 1.0
+  },
+  "tags": [
+    "shantae",
+    "purple_hair",
+    "dark_skin",
+    "pointy_ears",
+    "very_long_hair",
+    "high_ponytail",
+    "harem_pants",
+    "o-ring_top",
+    "gold_jewelry",
+    "hoop_earrings",
+    "bracer",
+    "tiara",
+    "midriff",
+    "navel"
+  ]
+}