Add outfit gallery and AI-powered creation for characters and outfits

- Add outfit gallery with CRUD operations (create, read, update, delete)
- Add AI-powered profile generation for both characters and outfits
- Add toggle to switch between AI generation and manual creation
- Auto-generate filenames from names with incrementing for duplicates
- Add 'full_body' and 'bottom' fields to wardrobe structure
- Update all character and outfit JSON files with new wardrobe fields
- Reorganize data into data/characters and data/clothing directories
- Update README with new features and JSON structure documentation

data/clothing/school_uniform_01.json

@@ -0,0 +1,20 @@
+{
+  "outfit_id": "school_uniform_01",
+  "outfit_name": "School Uniform (Western)",
+  "wardrobe": {
+    "full_body": "",
+    "headwear": "hairband",
+    "top": "white shirt, tie, blazer",
+    "bottom": "skirt",
+    "legwear": "thigh high socks",
+    "footwear": "black shoes",
+    "hands": "",
+    "accessories": ""
+  },
+  "lora": {
+    "lora_name": "",
+    "lora_weight": 0.8,
+    "lora_triggers": ""
+  },
+  "tags": []
+}