refactor: move No LoRA feature from LoRA Pool to Lora Cycler widget

Move the 'empty/no LoRA' cycling functionality from the LoRA Pool node
to the Lora Cycler widget for cleaner architecture:

Frontend changes:
- Add include_no_lora field to CyclerConfig interface
- Add includeNoLora state and logic to useLoraCyclerState composable
- Add toggle UI in LoraCyclerSettingsView with special styling
- Show 'No LoRA' entry in LoraListModal when enabled
- Update LoraCyclerWidget to integrate new logic

Backend changes:
- lora_cycler.py reads include_no_lora from config
- Calculate effective_total_count (actual count + 1 when enabled)
- Return empty lora_stack when on No LoRA position
- Return actual LoRA count in total_count (not effective count)

Reverted files to pre-PR state:
- lora_loader.py, lora_pool.py, lora_randomizer.py, lora_stacker.py
- lora_routes.py, lora_service.py
- LoraPoolWidget.vue and related files

Related to PR #861

Co-authored-by: dogatech <dogatech@dogatech.home>

py/services/lora_service.py

@@ -62,17 +62,6 @@ class LoraService(BaseModelService):
         if first_letter:
             data = self._filter_by_first_letter(data, first_letter)
 
-        if kwargs.get("include_empty_lora"):
-            data.append({
-                "file_name": "None",
-                "model_name": "None",
-                "file_path": "",
-                "folder": "",
-                "base_model": "",
-                "tags": [],
-                "civitai": {},
-            })
-
         return data
 
     def _filter_by_first_letter(self, data: List[Dict], letter: str) -> List[Dict]:
@@ -414,7 +403,7 @@ class LoraService(BaseModelService):
         """
         from .model_query import FilterCriteria
 
-        filter_section = pool_config.get("filters", pool_config)
+        filter_section = pool_config
 
         # Extract filter parameters
         selected_base_models = filter_section.get("baseModels", [])
@@ -427,7 +416,6 @@ class LoraService(BaseModelService):
         license_dict = filter_section.get("license", {})
         no_credit_required = license_dict.get("noCreditRequired", False)
         allow_selling = license_dict.get("allowSelling", False)
-        include_empty_lora = filter_section.get("includeEmptyLora", False)
 
         # Build tag filters dict
         tag_filters = {}
@@ -497,18 +485,6 @@ class LoraService(BaseModelService):
                 if bool(lora.get("license_flags", 127) & (1 << 1))
             ]
 
-        if include_empty_lora:
-            
-            available_loras.append({
-                "file_name": "None",
-                "model_name": "None",
-                "file_path": "",
-                "folder": "",
-                "base_model": "",
-                "tags": [],
-                "civitai": {},
-            })
-
         return available_loras
 
     async def get_cycler_list(