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/tifalockhartff7advchilcasual_illu_dwnsty_000006.json

@@ -0,0 +1,27 @@
+{
+  "look_id": "tifalockhartff7advchilcasual_illu_dwnsty_000006",
+  "look_name": "Tifalockhartff7Advchilcasual Illu Dwnsty 000006",
+  "character_id": "tifa_lockhart",
+  "positive": "tifa_lockhart, final_fantasy_vii:_advent_children, 1girl, solo, long_hair, black_hair, red_eyes, white_tank_top, black_vest, black_shorts, fingerless_gloves, arm_ribbon, pink_ribbon, midriff, navel, black_boots, realistic",
+  "negative": "lowres, worst_quality, low_quality, bad_anatomy, multiple_views, jpeg_artifacts, artist_name, young, 3d, render, doll",
+  "lora": {
+    "lora_name": "Illustrious/Looks/TifaLockhartFF7AdvChilCasual_Illu_Dwnsty-000006.safetensors",
+    "lora_weight": 0.8,
+    "lora_triggers": "tifa_lockhart, final_fantasy_vii:_advent_children",
+    "lora_weight_min": 0.8,
+    "lora_weight_max": 0.8
+  },
+  "tags": [
+    "tifa_lockhart",
+    "final_fantasy_vii:_advent_children",
+    "white_tank_top",
+    "black_vest",
+    "black_shorts",
+    "fingerless_gloves",
+    "arm_ribbon",
+    "pink_ribbon",
+    "midriff",
+    "navel",
+    "black_boots"
+  ]
+}