PuffPastry Backend OpenAPI and Frontend SDK Generation

This backend exposes an OpenAPI 3.0 document at:

  GET http://localhost:7300/openapi.json

You can generate a TypeScript client for your frontend using openapi-typescript-codegen:

1) Install the generator (once):
   npm install -g openapi-typescript-codegen

2) Run code generation (adjust output path to your frontend project):
   openapi --input http://localhost:7300/openapi.json --output ../frontend/src/api --client axios

If you prefer, you can output a local file first:

   curl -s http://localhost:7300/openapi.json -o openapi.json
   openapi --input openapi.json --output ../frontend/src/api --client axios

Notes
- The current OpenAPI spec is minimal and focuses on request shapes and endpoints. It’s sufficient for client generation.
- We can later switch to automatic spec generation with Apistos annotations without changing the endpoint path.
- If you add new endpoints, update the spec in src/routes/openapi.rs accordingly, or let’s enhance it with Apistos once we decide on the annotation strategy.