feat(SW-739): use new allTiers endpoint and add feature flag

server/routers/contentstack/reward/output.ts

@@ -91,6 +91,22 @@ export const validateApiTierRewardsSchema = z.record(
   )
 )
 
+export const validateApiAllTiersSchema = z.record(
+  z.nativeEnum(TierKey).transform((data) => {
+    return TierKey[data as unknown as Key]
+  }),
+  z.array(
+    z.object({
+      id: z.string().optional(),
+      status: z.string().optional(),
+      rewardId: z.string().optional(),
+      rewardTierLevel: z.string().optional(),
+      rewardType: z.string().optional(),
+      title: z.string().optional(),
+    })
+  )
+)
+
 export const validateCmsRewardsSchema = z
   .object({
     data: z.object({