User Story 15: Upload API

[JRustyHaner]

As a user, I want to be able to upload a PDF or Image to the backend and have it converted to a GLTF model.

Acceptance:

• a POST /api/upload endpoint that is protected using the auth module from Maintenance: Stub for Bluekey Auth #26
• unsupported file types rejected
• uploaded file stored in minio using the database pool from User Story 7: Database Connection Pool #8
• calls the existing pipeline for GLTF creation Add topography mesh and glTF exporter #11
• metadata recored into gltf_model repository (already implemented)
• endpoint returns model ID, storage key, width, height, vetex cout, and a download url.
• failures return 500 error with descriptive message
• all existing tests pass

Language:

• TypeScript
• Fiile: /backend/src/routes/upload.ts, /backend/src/index.ts