feat: add Zod schema for Azure Blob storage config

src/features/channel/storages/blob.schema.ts

@@ -0,0 +1,12 @@
+import {z} from "zod";
+
+export const BlobChannelConfigSchema = z.object({
+    accountName: z.string().min(1, "Account name is required"),
+    accountKey: z.string().optional(),
+    connectionString: z.string().optional(),
+    containerName: z.string().min(1, "Container name is required"),
+    endpointUrl: z.string().optional(),
+}).refine(
+    (data) => data.accountKey || data.connectionString,
+    {message: "Either account key or connection string is required"}
+);