FEAT: add Platform API proxy with Elasticsearch and DynamoDB sync

- Add Platform API module to proxy requests to Platform API service
- Add Elasticsearch service for pipeline catalog sync (CRUD operations)
- Add DynamoDB service for storing pipeline tables/inputs configuration
- Sync pipeline creation/update/delete to Elasticsearch index
- Extract tables from jobs with connector-specific mappings:
  - JDBC: table_name, load_type, column_include_list, incremental_column_name
  - Singer: replication_method -> full_load/incremental
  - S3: same as Singer
- Map connector types to DynamoDB types (jdbc->database, singer->application, s3->file)
- Validate connector type is provided in job input
- Normalize pipeline IDs for Platform API (replace - with _), keep UUIDs for ES

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/modules/platform-api/platform-api.service.ts

@@ -0,0 +1,123 @@
+import { Injectable, Inject, HttpException } from '@nestjs/common';
+import { SignatureV4 } from '@aws-sdk/signature-v4';
+import { Sha256 } from '@aws-crypto/sha256-js';
+import { defaultProvider } from '@aws-sdk/credential-provider-node';
+import axios, { AxiosResponse, Method } from 'axios';
+import { DadosferaLogger } from '@dadosfera/dadosfera-logs';
+
+import { RequestUser } from '../../decorators/user.decorator';
+import { PLATFORM_API_CONFIG } from './platform-api.config';
+
+@Injectable()
+export class PlatformApiService {
+  private signer: SignatureV4;
+  private logger: any;
+
+  constructor(
+    @Inject(DadosferaLogger) dadosferaLogger: DadosferaLogger,
+  ) {
+    this.logger = dadosferaLogger.logger;
+    this.signer = new SignatureV4({
+      service: 'execute-api',
+      region: PLATFORM_API_CONFIG.region,
+      credentials: defaultProvider(),
+      sha256: Sha256,
+    });
+  }
+
+  async proxy(
+    method: string,
+    path: string,
+    user: RequestUser,
+    body?: any,
+    query?: Record<string, string>,
+  ): Promise<any> {
+    const baseUrl = PLATFORM_API_CONFIG.getUrl();
+    const url = new URL(`${baseUrl}${path}`);
+
+    // Add query params
+    if (query) {
+      Object.entries(query).forEach(([key, value]) => {
+        if (value !== undefined && value !== null) {
+          url.searchParams.set(key, String(value));
+        }
+      });
+    }
+
+    const headers: Record<string, string> = {
+      host: url.hostname,
+      'content-type': 'application/json',
+      // Forward user context headers
+      // Note: platform-api expects customer_name in the 'customer_id' header (contract inconsistency)
+      'customer_id': user.customer_name || '',
+      'customer_name': user.customer_name || '',
+      'x-user-id': user.user_id || '',
+      'x-username': user.username || '',
+      'x-customer-tier': user.customer_tier || '',
+      'x-customer-id': user.customer_id || '',
+    };
+
+    const requestToSign = {
+      method: method.toUpperCase(),
+      protocol: url.protocol,
+      hostname: url.hostname,
+      port: url.port ? parseInt(url.port, 10) : undefined,
+      path: url.pathname + url.search,
+      headers,
+      body: body ? JSON.stringify(body) : undefined,
+    };
+
+    this.logger.info('Proxying request to platform-api', {
+      method: method.toUpperCase(),
+      path,
+      customer_id: user.customer_id,
+      user_id: user.user_id,
+    });
+
+    try {
+      // Sign with IAM v4
+      const signedRequest = await this.signer.sign(requestToSign);
+
+      const response: AxiosResponse = await axios({
+        method: method as Method,
+        url: url.href,
+        headers: signedRequest.headers as Record<string, string>,
+        data: body,
+        timeout: PLATFORM_API_CONFIG.timeout,
+        validateStatus: () => true, // Don't throw on non-2xx
+      });
+
+      // Propagate non-2xx responses as HttpExceptions
+      if (response.status >= 400) {
+        throw new HttpException(response.data, response.status);
+      }
+
+      return response.data;
+    } catch (error) {
+      this.logger.error('Platform API proxy error', {
+        error: error.message,
+        status: error.response?.status,
+        path,
+        method: method.toUpperCase(),
+      });
+
+      if (error instanceof HttpException) {
+        throw error;
+      }
+
+      if (error.response) {
+        throw new HttpException(error.response.data, error.response.status);
+      }
+
+      if (error.code === 'ECONNREFUSED') {
+        throw new HttpException('Platform API service unavailable', 503);
+      }
+
+      if (error.code === 'ETIMEDOUT' || error.code === 'ECONNABORTED') {
+        throw new HttpException('Platform API request timeout', 504);
+      }
+
+      throw new HttpException('Internal server error', 500);
+    }
+  }
+}