auth checkpoint

auth dependecies not instaled in dev container

backend/src/modules/auth/local.strategy.ts

@@ -0,0 +1,22 @@
+import { Injectable, UnauthorizedException } from '@nestjs/common';
+import { PassportStrategy } from '@nestjs/passport';
+import { Strategy } from 'passport-local';
+import { AuthService } from './auth.service';
+
+@Injectable()
+export class LocalStrategy extends PassportStrategy(Strategy) {
+  constructor(private authService: AuthService) {
+    super();
+  }
+
+  async validate(
+    username: string,
+    password: string,
+  ): Promise<{ id: string; username: string; email: string; role: string }> {
+    const user = await this.authService.validateUser(username, password);
+    if (!user) {
+      throw new UnauthorizedException('Invalid credentials');
+    }
+    return user;
+  }
+}