feat: add Master Admin application functionality

src/app/core/models/auth.model.ts

@@ -0,0 +1,24 @@
+export interface LoginRequest {
+  email: string;
+  password: string;
+}
+
+export interface LoginResponse {
+  accessToken: string;
+  refreshToken?: string;
+  accessTokenExpiresOn?: string;
+  refreshTokenExpiresOn?: string;
+  expiresIn?: number;
+  user?: UserProfile;
+  userId?: string;
+  email?: string;
+  roles?: string[];
+}
+
+export interface UserProfile {
+  id: string;
+  email: string;
+  displayName?: string;
+  roles?: string[];
+  tenantId?: string;
+}