feat: add user stat for each branch

src/controllers/branch/branch-controller.ts

@@ -61,6 +61,27 @@ type BranchUpdate = {
 @Tags("Branch")
 @Security("keycloak")
 export class BranchController extends Controller {
+  @Get("stats")
+  async getStat() {
+    const list = await prisma.branchUser.groupBy({
+      by: ["branchId"],
+      _count: true,
+    });
+
+    const record = await prisma.branch.findMany({
+      select: {
+        id: true,
+        nameEN: true,
+        nameTH: true,
+      },
+    });
+
+    return record.map((a) => ({
+      ...a,
+      userCount: list.find((b) => b.branchId === a.id)?._count ?? 0,
+    }));
+  }
+
   @Get()
   async getBranch(
     @Query() zipCode?: string,