Add chat gifts and relationship diary UI

src/data/schemas/private-room/request/unlock_relationship_diary_request.ts

@@ -0,0 +1,11 @@
+import { z } from "zod";
+
+export const UnlockRelationshipDiaryRequestSchema = z
+  .object({
+    expectedCost: z.number().int().positive(),
+  })
+  .readonly();
+
+export type UnlockRelationshipDiaryRequest = z.output<
+  typeof UnlockRelationshipDiaryRequestSchema
+>;