website refactor

apps/website/lib/mutations/auth/SignupMutation.ts

@@ -0,0 +1,26 @@
+/**
+ * Signup Mutation
+ *
+ * Framework-agnostic mutation for signup operations.
+ * Called from Server Actions.
+ *
+ * Pattern: Server Action → Mutation → Service → API Client
+ */
+
+import { Result } from '@/lib/contracts/Result';
+import { AuthService } from '@/lib/services/auth/AuthService';
+import { SessionViewModel } from '@/lib/view-models/SessionViewModel';
+import { SignupParamsDTO } from '@/lib/types/generated/SignupParamsDTO';
+
+export class SignupMutation {
+  async execute(params: SignupParamsDTO): Promise<Result<SessionViewModel, string>> {
+    try {
+      const authService = new AuthService();
+      const session = await authService.signup(params);
+      return Result.ok(session);
+    } catch (error) {
+      const errorMessage = error instanceof Error ? error.message : 'Signup failed';
+      return Result.err(errorMessage);
+    }
+  }
+}