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/yuffie_illus_fp.json

@@ -0,0 +1,23 @@
+{
+  "look_id": "yuffie_illus_fp",
+  "look_name": "Yuffie Illus Fp",
+  "character_id": "yuffie_kisaragi",
+  "positive": "yuffie_kisaragi, short_hair, black_hair, brown_eyes, forehead_protector, sleeveless_turtleneck, green_sweater, midriff, crop_top, single_pauldron, chest_strap, single_arm_guard, orange_gloves, fingerless_gloves, white_shorts, fishnets",
+  "negative": "long_hair, skirt, dress, low_quality, worst_quality, blurry, watermark",
+  "lora": {
+    "lora_name": "Illustrious/Looks/Yuffie-illus_Fp.safetensors",
+    "lora_weight": 1.0,
+    "lora_triggers": "yuff7",
+    "lora_weight_min": 1.0,
+    "lora_weight_max": 1.0
+  },
+  "tags": [
+    "anime",
+    "final_fantasy_vii",
+    "female",
+    "ninja",
+    "shuriken",
+    "huge_weapon",
+    "holding_weapon"
+  ]
+}