feat: add "Respect Recommended Strength" feature to LoRA Randomizer

Add support for respecting recommended strength values from LoRA usage_tips
when randomizing LoRA selection.

Features:
- New toggle setting to enable/disable recommended strength respect (default off)
- Scale range slider (0-2, default 0.5-1.0) to adjust recommended values
- Uses recommended strength × random(scale) when feature enabled
- Fallbacks to original Model/Clip Strength range when no recommendation exists
- Clip strength recommendations only apply when using Custom Range mode

Backend changes:
- Parse usage_tips JSON string to extract strength/clipStrength
- Apply scale factor to recommended values during randomization
- Pass new parameters through API route and node

Frontend changes:
- Update RandomizerConfig type with new properties
- Add new UI section with toggle and dual-range slider
- Wire up state management and event handlers
- No layout shift (removed description text)

Tests:
- Add tests for enabled/disabled recommended strength in API routes
- Add test verifying config passed to service
- All existing tests pass

Build: Include compiled Vue widgets

vue-widgets/src/components/LoraRandomizerWidget.vue

@@ -16,6 +16,9 @@
       :last-used="state.lastUsed.value"
       :current-loras="currentLoras"
       :can-reuse-last="canReuseLast"
+      :use-recommended-strength="state.useRecommendedStrength.value"
+      :recommended-strength-scale-min="state.recommendedStrengthScaleMin.value"
+      :recommended-strength-scale-max="state.recommendedStrengthScaleMax.value"
       @update:count-mode="state.countMode.value = $event"
       @update:count-fixed="state.countFixed.value = $event"
       @update:count-min="state.countMin.value = $event"
@@ -26,6 +29,9 @@
       @update:clip-strength-min="state.clipStrengthMin.value = $event"
       @update:clip-strength-max="state.clipStrengthMax.value = $event"
       @update:roll-mode="state.rollMode.value = $event"
+      @update:use-recommended-strength="state.useRecommendedStrength.value = $event"
+      @update:recommended-strength-scale-min="state.recommendedStrengthScaleMin.value = $event"
+      @update:recommended-strength-scale-max="state.recommendedStrengthScaleMax.value = $event"
       @generate-fixed="handleGenerateFixed"
       @always-randomize="handleAlwaysRandomize"
       @reuse-last="handleReuseLast"

vue-widgets/src/components/lora-randomizer/LoraRandomizerSettingsView.vue

@@ -73,6 +73,40 @@
       </div>
     </div>
 
+    <!-- Recommended Strength -->
+    <div class="setting-section">
+      <div class="section-header-with-toggle">
+        <label class="setting-label">
+          Respect Recommended Strength
+        </label>
+        <button
+          type="button"
+          class="toggle-switch"
+          :class="{ 'toggle-switch--active': useRecommendedStrength }"
+          @click="$emit('update:useRecommendedStrength', !useRecommendedStrength)"
+          role="switch"
+          :aria-checked="useRecommendedStrength"
+          title="Use recommended strength values from usage tips"
+        >
+          <span class="toggle-switch__track"></span>
+          <span class="toggle-switch__thumb"></span>
+        </button>
+      </div>
+      <div class="slider-container" :class="{ 'slider-container--disabled': !useRecommendedStrength }">
+        <DualRangeSlider
+          :min="0"
+          :max="2"
+          :value-min="recommendedStrengthScaleMin"
+          :value-max="recommendedStrengthScaleMax"
+          :step="0.1"
+          :default-range="{ min: 0.5, max: 1.0 }"
+          :disabled="!useRecommendedStrength"
+          @update:value-min="$emit('update:recommendedStrengthScaleMin', $event)"
+          @update:value-max="$emit('update:recommendedStrengthScaleMax', $event)"
+        />
+      </div>
+    </div>
+
     <!-- Clip Strength Range -->
     <div class="setting-section">
       <div class="section-header-with-toggle">
@@ -200,6 +234,9 @@ defineProps<{
   lastUsed: LoraEntry[] | null
   currentLoras: LoraEntry[]
   canReuseLast: boolean
+  useRecommendedStrength: boolean
+  recommendedStrengthScaleMin: number
+  recommendedStrengthScaleMax: number
 }>()
 
 defineEmits<{
@@ -213,6 +250,9 @@ defineEmits<{
   'update:clipStrengthMin': [value: number]
   'update:clipStrengthMax': [value: number]
   'update:rollMode': [value: 'fixed' | 'always']
+  'update:useRecommendedStrength': [value: boolean]
+  'update:recommendedStrengthScaleMin': [value: number]
+  'update:recommendedStrengthScaleMax': [value: number]
   'generate-fixed': []
   'always-randomize': []
   'reuse-last': []
@@ -341,6 +381,11 @@ const areLorasEqual = (a: LoraEntry[] | null, b: LoraEntry[] | null): boolean =>
   padding: 4px 8px;
 }
 
+.slider-container--disabled {
+  opacity: 0.5;
+  pointer-events: none;
+}
+
 /* Toggle Switch (same style as LicenseSection) */
 .toggle-switch {
   position: relative;

vue-widgets/src/composables/types.ts

@@ -66,6 +66,9 @@ export interface RandomizerConfig {
   clip_strength_max: number
   roll_mode: 'fixed' | 'always'
   last_used?: LoraEntry[] | null
+  use_recommended_strength: boolean
+  recommended_strength_scale_min: number
+  recommended_strength_scale_max: number
 }
 
 export interface LoraEntry {

vue-widgets/src/composables/useLoraRandomizerState.ts

@@ -14,6 +14,9 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
   const clipStrengthMax = ref(1.0)
   const rollMode = ref<'fixed' | 'always'>('fixed')
   const isRolling = ref(false)
+  const useRecommendedStrength = ref(false)
+  const recommendedStrengthScaleMin = ref(0.5)
+  const recommendedStrengthScaleMax = ref(1.0)
 
   // Track last used combination (for backend roll mode)
   const lastUsed = ref<LoraEntry[] | null>(null)
@@ -31,6 +34,9 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
     clip_strength_max: clipStrengthMax.value,
     roll_mode: rollMode.value,
     last_used: lastUsed.value,
+    use_recommended_strength: useRecommendedStrength.value,
+    recommended_strength_scale_min: recommendedStrengthScaleMin.value,
+    recommended_strength_scale_max: recommendedStrengthScaleMax.value,
   })
 
   // Restore state from config object
@@ -56,6 +62,9 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
       rollMode.value = 'fixed'
     }
     lastUsed.value = config.last_used || null
+    useRecommendedStrength.value = config.use_recommended_strength ?? false
+    recommendedStrengthScaleMin.value = config.recommended_strength_scale_min ?? 0.5
+    recommendedStrengthScaleMax.value = config.recommended_strength_scale_max ?? 1.0
   }
 
   // Roll loras - call API to get random selection
@@ -76,6 +85,9 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
         clip_strength_min: config.clip_strength_min,
         clip_strength_max: config.clip_strength_max,
         locked_loras: lockedLoras,
+        use_recommended_strength: config.use_recommended_strength,
+        recommended_strength_scale_min: config.recommended_strength_scale_min,
+        recommended_strength_scale_max: config.recommended_strength_scale_max,
       }
 
       // Add count parameters
@@ -130,6 +142,7 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
 
   // Computed properties
   const isClipStrengthDisabled = computed(() => useSameClipStrength.value)
+  const isRecommendedStrengthEnabled = computed(() => useRecommendedStrength.value)
 
   // Watch all state changes and update widget value
   watch([
@@ -143,6 +156,9 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
     clipStrengthMin,
     clipStrengthMax,
     rollMode,
+    useRecommendedStrength,
+    recommendedStrengthScaleMin,
+    recommendedStrengthScaleMax,
   ], () => {
     const config = buildConfig()
     if (widget.updateConfig) {
@@ -166,9 +182,13 @@ export function useLoraRandomizerState(widget: ComponentWidget) {
     rollMode,
     isRolling,
     lastUsed,
+    useRecommendedStrength,
+    recommendedStrengthScaleMin,
+    recommendedStrengthScaleMax,
 
     // Computed
     isClipStrengthDisabled,
+    isRecommendedStrengthEnabled,
 
     // Methods
     buildConfig,

vue-widgets/src/main.ts

@@ -7,7 +7,7 @@ import type { LoraPoolConfig, LegacyLoraPoolConfig, RandomizerConfig } from './c
 const LORA_POOL_WIDGET_MIN_WIDTH = 500
 const LORA_POOL_WIDGET_MIN_HEIGHT = 400
 const LORA_RANDOMIZER_WIDGET_MIN_WIDTH = 500
-const LORA_RANDOMIZER_WIDGET_MIN_HEIGHT = 430
+const LORA_RANDOMIZER_WIDGET_MIN_HEIGHT = 510
 const LORA_RANDOMIZER_WIDGET_MAX_HEIGHT = LORA_RANDOMIZER_WIDGET_MIN_HEIGHT
 
 // @ts-ignore - ComfyUI external module