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"