fix pricing for KlingImage2VideoNode (#4957)

## Summary

Following up #4938 where I forgot to add pricing for new model in the
`KlingImage2VideoNode`.

## Screenshots (if applicable)

<img width="1461" height="1228" alt="Screenshot from 2025-08-13
09-15-21"
src="https://github.com/user-attachments/assets/01be8ab9-820b-4112-9a54-1ce4f23de4eb"
/>

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-4957-fix-pricing-for-KlingImage2VideoNode-24e6d73d36508122b40ede36fdd50115)
by [Unito](https://www.unito.io)

Author: bigcat88

src/composables/node/useNodePricing.ts

@@ -261,7 +261,10 @@ const apiNodeCosts: Record<string, { displayPrice: string | PricingFunction }> =
             return '$0.14-2.80/Run (varies with model, mode & duration)'
 
           const modelValue = String(modelWidget.value)
-          if (modelValue.includes('v2-master')) {
+          if (
+            modelValue.includes('v2-1-master') ||
+            modelValue.includes('v2-master')
+          ) {
             return '$1.40/Run'
           } else if (
             modelValue.includes('v1-6') ||
@@ -280,12 +283,19 @@ const apiNodeCosts: Record<string, { displayPrice: string | PricingFunction }> =
         console.log('durationValue', durationValue)
 
         // Same pricing matrix as KlingTextToVideoNode
-        if (modelValue.includes('v2-master')) {
+        if (
+          modelValue.includes('v2-1-master') ||
+          modelValue.includes('v2-master')
+        ) {
           if (durationValue.includes('10')) {
             return '$2.80/Run'
           }
           return '$1.40/Run' // 5s default
-        } else if (modelValue.includes('v1-6') || modelValue.includes('v1-5')) {
+        } else if (
+          modelValue.includes('v2-1') ||
+          modelValue.includes('v1-6') ||
+          modelValue.includes('v1-5')
+        ) {
           if (modeValue.includes('pro')) {
             return durationValue.includes('10') ? '$0.98/Run' : '$0.49/Run'
           } else {

tests-ui/tests/composables/node/useNodePricing.test.ts

@@ -114,6 +114,16 @@ describe('useNodePricing', () => {
       expect(price).toBe('$1.40/Run')
     })
 
+    it('should return high price for kling-v2-1-master model', () => {
+      const { getNodeDisplayPrice } = useNodePricing()
+      const node = createMockNode('KlingImage2VideoNode', [
+        { name: 'model_name', value: 'v2-1-master' }
+      ])
+
+      const price = getNodeDisplayPrice(node)
+      expect(price).toBe('$1.40/Run')
+    })
+
     it('should return standard price for kling-v1-6 model', () => {
       const { getNodeDisplayPrice } = useNodePricing()
       const node = createMockNode('KlingImage2VideoNode', [