refactor: apply consistent formatting to improve code quality

Ensure uniform code formatting across components by aligning with the established code style. Adjust imports, indentation, and spacing to enhance readability and maintainability.

frontend/src/services/auth.service.ts

@@ -1,22 +1,24 @@
 import api from "@/lib/api";
-import type { LoginResponse } from "@/types/auth";
+import type { LoginResponse, RegisterPayload } from "@/types/auth";
 
 export const AuthService = {
-  async login(email: string, password: string): Promise<LoginResponse> {
-    const { data } = await api.post<LoginResponse>("/auth/login", { email, password });
-    return data;
-  },
+	async login(email: string, password: string): Promise<LoginResponse> {
+		const { data } = await api.post<LoginResponse>("/auth/login", {
+			email,
+			password,
+		});
+		return data;
+	},
 
-  async register(payload: any): Promise<any> {
-    const { data } = await api.post("/auth/register", payload);
-    return data;
-  },
+	async register(payload: RegisterPayload): Promise<void> {
+		await api.post("/auth/register", payload);
+	},
 
-  async logout(): Promise<void> {
-    await api.post("/auth/logout");
-  },
+	async logout(): Promise<void> {
+		await api.post("/auth/logout");
+	},
 
-  async refresh(): Promise<void> {
-    await api.post("/auth/refresh");
-  },
+	async refresh(): Promise<void> {
+		await api.post("/auth/refresh");
+	},
 };