FIX: pass type field to Elasticsearch createPipeline

The type field was missing from the createPipeline call,
causing ES documents to not have the type field set.

Maps: jdbc->database, singer->application, s3->file

🤖 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.controller.ts

@@ -490,6 +490,7 @@ export class PlatformApiController {
           cron: body.cron,
           tables: inputId,
           properties,
+          type: this.mapConnectorToDynamoType(connectorType),
         },
         connector,
       );