Initial commit: restructure project with Docker Compose setup

backend/src/app.module.ts

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+import { Module } from '@nestjs/common';
+import { ConfigModule } from '@nestjs/config';
+import { MailModule } from './mail/mail.module';
+
+@Module({
+  imports: [
+    ConfigModule.forRoot({ isGlobal: true }),
+    MailModule,
+  ],
+})
+export class AppModule {}

backend/src/mail/dto/send-application.dto.ts

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+import { IsString, IsOptional, IsEmail, MinLength } from 'class-validator';
+
+export class SendApplicationDto {
+  @IsString()
+  @MinLength(1)
+  name: string;
+
+  @IsString()
+  @MinLength(1)
+  phone: string;
+
+  @IsOptional()
+  @IsEmail()
+  email?: string;
+
+  @IsOptional()
+  @IsString()
+  message?: string;
+}

backend/src/mail/mail.controller.ts

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+import { Controller, Post, Body } from '@nestjs/common';
+import { MailService } from './mail.service';
+import { SendApplicationDto } from './dto/send-application.dto';
+
+@Controller('api/mail')
+export class MailController {
+  constructor(private readonly mailService: MailService) {}
+
+  @Post('application')
+  async sendApplication(@Body() dto: SendApplicationDto) {
+    await this.mailService.sendApplication(dto);
+    return { success: true, message: 'Application sent successfully' };
+  }
+}

backend/src/mail/mail.module.ts

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+import { Module } from '@nestjs/common';
+import { MailService } from './mail.service';
+import { MailController } from './mail.controller';
+
+@Module({
+  providers: [MailService],
+  controllers: [MailController],
+})
+export class MailModule {}

backend/src/mail/mail.service.ts

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+import { Injectable } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import * as nodemailer from 'nodemailer';
+import { SendApplicationDto } from './dto/send-application.dto';
+
+@Injectable()
+export class MailService {
+  private transporter: nodemailer.Transporter;
+
+  constructor(private configService: ConfigService) {
+    this.transporter = nodemailer.createTransport({
+      host: this.configService.get('SMTP_HOST', 'smtp.yandex.ru'),
+      port: parseInt(this.configService.get('SMTP_PORT', '465'), 10),
+      secure: this.configService.get('SMTP_SECURE', 'true') === 'true',
+      auth: {
+        user: this.configService.getOrThrow('SMTP_USER'),
+        pass: this.configService.getOrThrow('SMTP_PASS'),
+      },
+    });
+  }
+
+  async sendApplication(dto: SendApplicationDto) {
+    const recipientEmail = this.configService.get('RECIPIENT_EMAIL') || this.configService.get('SMTP_USER');
+    const siteName = this.configService.get('SITE_NAME', 'Сайт психолога');
+
+    const html = `
+      <h2>Новая заявка с сайта «${siteName}»</h2>
+      <table style="border-collapse:collapse;width:100%;max-width:600px;font-family:sans-serif">
+        <tr style="border-bottom:1px solid #eee">
+          <td style="padding:10px 0;font-weight:bold;width:140px">Имя:</td>
+          <td style="padding:10px 0">${this.escapeHtml(dto.name)}</td>
+        </tr>
+        <tr style="border-bottom:1px solid #eee">
+          <td style="padding:10px 0;font-weight:bold">Телефон:</td>
+          <td style="padding:10px 0">${this.escapeHtml(dto.phone)}</td>
+        </tr>
+        ${dto.email ? `
+        <tr style="border-bottom:1px solid #eee">
+          <td style="padding:10px 0;font-weight:bold">Email:</td>
+          <td style="padding:10px 0">${this.escapeHtml(dto.email)}</td>
+        </tr>
+        ` : ''}
+        ${dto.message ? `
+        <tr style="border-bottom:1px solid #eee">
+          <td style="padding:10px 0;font-weight:bold">Сообщение:</td>
+          <td style="padding:10px 0">${this.escapeHtml(dto.message).replace(/\n/g, '<br>')}</td>
+        </tr>
+        ` : ''}
+        <tr>
+          <td style="padding:10px 0;font-weight:bold">Дата:</td>
+          <td style="padding:10px 0">${new Date().toLocaleString('ru-RU')}</td>
+        </tr>
+      </table>
+    `;
+
+    const text = `
+Новая заявка с сайта «${siteName}»
+
+Имя: ${dto.name}
+Телефон: ${dto.phone}
+${dto.email ? `Email: ${dto.email}\n` : ''}${dto.message ? `Сообщение: ${dto.message}\n` : ''}
+Дата: ${new Date().toLocaleString('ru-RU')}
+    `.trim();
+
+    await this.transporter.sendMail({
+      from: `"${siteName}" <${this.configService.get('SMTP_USER')}>`,
+      to: recipientEmail,
+      subject: `Новая заявка от ${dto.name}`,
+      text,
+      html,
+    });
+
+    return { success: true };
+  }
+
+  private escapeHtml(text: string): string {
+    return text
+      .replace(/&/g, '&amp;')
+      .replace(/</g, '&lt;')
+      .replace(/>/g, '&gt;')
+      .replace(/"/g, '&quot;')
+      .replace(/'/g, '&#039;');
+  }
+}

backend/src/main.ts

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+import { NestFactory } from '@nestjs/core';
+import { AppModule } from './app.module';
+import { ValidationPipe } from '@nestjs/common';
+
+async function bootstrap() {
+  const app = await NestFactory.create(AppModule);
+
+  app.enableCors({
+    origin: process.env.FRONTEND_URL || true,
+    credentials: true,
+  });
+
+  app.useGlobalPipes(new ValidationPipe({ whitelist: true, transform: true }));
+
+  const port = process.env.PORT || 3001;
+  await app.listen(port);
+  console.log(`Server running on http://localhost:${port}`);
+}
+bootstrap();