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/routes/lora_routes.py

@@ -97,10 +97,6 @@ class LoraRoutes(BaseModelRoutes):
                 h.lower() for h in request.query["lora_hashes"].split(",")
             ]
 
-        include_empty_lora = request.query.get("include_empty_lora")
-        if include_empty_lora is not None:
-            params["include_empty_lora"] = include_empty_lora.lower() == "true"
-
         return params
 
     def _validate_civitai_model_type(self, model_type: str) -> bool: