feat: implement Actions Gallery with character integration and triple LoRA chaining

- Added Actions gallery with CRUD and JSON sync
- Implemented Triple LoRA workflow (Character -> Outfit -> Action)
- Added character-integrated previews for Actions with style matching
- Implemented granular prompt selection and default persistence for Actions
- Added detailed development guide for extending gallery features

comfy_workflow.json

@@ -179,5 +179,15 @@
       "clip": ["16", 1]
     },
     "class_type": "LoraLoader"
+  },
+  "18": {
+    "inputs": {
+      "lora_name": "",
+      "strength_model": 1.0,
+      "strength_clip": 1.0,
+      "model": ["17", 0],
+      "clip": ["17", 1]
+    },
+    "class_type": "LoraLoader"
   }
 }