Fix billing test to mock subscription endpoint

Author: jahooma

packages/billing/src/__tests__/usage-service.test.ts

@@ -49,6 +49,10 @@ describe('usage-service', () => {
           }),
         }))
 
+        await mockModule('@codebuff/billing/subscription', () => ({
+          getActiveSubscription: async () => null,
+        }))
+
         const { getUserUsageData } = await import('@codebuff/billing/usage-service')
 
         const result = await getUserUsageData({
@@ -81,6 +85,10 @@ describe('usage-service', () => {
           }),
         }))
 
+        await mockModule('@codebuff/billing/subscription', () => ({
+          getActiveSubscription: async () => null,
+        }))
+
         const { getUserUsageData } = await import('@codebuff/billing/usage-service')
 
         const result = await getUserUsageData({
@@ -110,6 +118,10 @@ describe('usage-service', () => {
           }),
         }))
 
+        await mockModule('@codebuff/billing/subscription', () => ({
+          getActiveSubscription: async () => null,
+        }))
+
         const { getUserUsageData } = await import('@codebuff/billing/usage-service')
 
         const result = await getUserUsageData({
@@ -140,6 +152,10 @@ describe('usage-service', () => {
           }),
         }))
 
+        await mockModule('@codebuff/billing/subscription', () => ({
+          getActiveSubscription: async () => null,
+        }))
+
         const { getUserUsageData } = await import('@codebuff/billing/usage-service')
 
         const result = await getUserUsageData({
@@ -171,6 +187,10 @@ describe('usage-service', () => {
           }),
         }))
 
+        await mockModule('@codebuff/billing/subscription', () => ({
+          getActiveSubscription: async () => null,
+        }))
+
         const { getUserUsageData } = await import('@codebuff/billing/usage-service')
 
         // Should not throw