[WEB-3066] refactor: replace Space Services with Services Package (#6353)

* [WEB-3066] refactor: replace Space Services with Services Package

* chore: minor improvements

* fix: type

---------

Co-authored-by: sriram veeraghanta <veeraghanta.sriram@gmail.com>

packages/services/src/auth/index.ts

@@ -1 +1,2 @@
 export * from "./auth.service";
+export * from "./sites-auth.service";

packages/services/src/auth/sites-auth.service.ts

@@ -0,0 +1,49 @@
+import { API_BASE_URL } from "@plane/constants";
+// types
+import { IEmailCheckData, IEmailCheckResponse } from "@plane/types";
+// services
+import { APIService } from "../api.service";
+
+/**
+ * Service class for handling authentication-related operations for Plane space application
+ * Provides methods for user authentication, password management, and session handling
+ * @extends {APIService}
+ * @remarks This service is only available for plane sites
+ */
+export class SitesAuthService extends APIService {
+  /**
+   * Creates an instance of SitesAuthService
+   * Initializes with the base API URL
+   */
+  constructor(BASE_URL?: string) {
+    super(BASE_URL || API_BASE_URL);
+  }
+
+  /**
+   * Checks if an email exists in the system
+   * @param {IEmailCheckData} data - Email data to verify
+   * @returns {Promise<IEmailCheckResponse>} Response indicating email status
+   * @throws {Error} Throws response data if the request fails
+   */
+  async emailCheck(data: IEmailCheckData): Promise<IEmailCheckResponse> {
+    return this.post("/auth/spaces/email-check/", data, { headers: {} })
+      .then((response) => response?.data)
+      .catch((error) => {
+        throw error?.response?.data;
+      });
+  }
+
+  /**
+   * Generates a unique code for magic link authentication
+   * @param {{ email: string }} data - Object containing the email address
+   * @returns {Promise<any>} Response containing the generated unique code
+   * @throws {Error} Throws response data if the request fails
+   */
+  async generateUniqueCode(data: { email: string }): Promise<any> {
+    return this.post("/auth/spaces/magic-generate/", data, { headers: {} })
+      .then((response) => response?.data)
+      .catch((error) => {
+        throw error?.response?.data;
+      });
+  }
+}