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>

vue-widgets/src/components/lora-pool/LoraPoolSummaryView.vue

@@ -27,10 +27,8 @@
       <LicenseSection
         :no-credit-required="noCreditRequired"
         :allow-selling="allowSelling"
-        :include-empty-lora="includeEmptyLora"
         @update:no-credit-required="$emit('update:noCreditRequired', $event)"
         @update:allow-selling="$emit('update:allowSelling', $event)"
-        @update:include-empty-lora="$emit('update:includeEmptyLora', $event)"
       />
     </div>
 
@@ -63,10 +61,9 @@ defineProps<{
   // Folders
   includeFolders: string[]
   excludeFolders: string[]
-  // License & Misc
+  // License
   noCreditRequired: boolean
   allowSelling: boolean
-  includeEmptyLora: boolean
   // Preview
   previewItems: LoraItem[]
   matchCount: number
@@ -79,7 +76,6 @@ defineEmits<{
   'update:excludeFolders': [value: string[]]
   'update:noCreditRequired': [value: boolean]
   'update:allowSelling': [value: boolean]
-  'update:includeEmptyLora': [value: boolean]
   refresh: []
 }>()
 </script>

vue-widgets/src/components/lora-pool/sections/LicenseSection.vue

@@ -1,7 +1,7 @@
 <template>
   <div class="section">
     <div class="section__header">
-      <span class="section__title">LICENSE & OPTIONS</span>
+      <span class="section__title">LICENSE</span>
     </div>
     <div class="section__toggles">
       <label class="toggle-item">
@@ -33,22 +33,6 @@
           <span class="toggle-switch__thumb"></span>
         </button>
       </label>
-
-      <label class="toggle-item">
-        <span class="toggle-item__label">Include No LoRAs</span>
-        <button
-          type="button"
-          class="toggle-switch"
-          :class="{ 'toggle-switch--active': includeEmptyLora }"
-          @click="$emit('update:includeEmptyLora', !includeEmptyLora)"
-          role="switch"
-          :aria-checked="includeEmptyLora"
-          title="Include an empty/blank LoRA option in the pool results"
-        >
-          <span class="toggle-switch__track"></span>
-          <span class="toggle-switch__thumb"></span>
-        </button>
-      </label>
     </div>
   </div>
 </template>
@@ -57,13 +41,11 @@
 defineProps<{
   noCreditRequired: boolean
   allowSelling: boolean
-  includeEmptyLora: boolean
 }>()
 
 defineEmits<{
   'update:noCreditRequired': [value: boolean]
   'update:allowSelling': [value: boolean]
-  'update:includeEmptyLora': [value: boolean]
 }>()
 </script>
 
@@ -87,7 +69,6 @@ defineEmits<{
 
 .section__toggles {
   display: flex;
-  flex-wrap: wrap;
   gap: 16px;
 }