Flatten package layout and add Gitea CI

backend/README.md

@@ -2,6 +2,8 @@
 
 FastAPI wrapper around the upstream `whisper` CLI from `openai/whisper`.
 
+Package layout is flat in this folder: `whisper_remote_backend/server.py`.
+
 ## Run
 
 ```bash
@@ -21,3 +23,8 @@ Multipart form fields:
 - `output_format`: `txt`, `vtt`, `srt`, `tsv`, or `json`
 
 The response body is the transcript artifact itself. The backend deletes the uploaded file and generated output after each request.
+
+## Notes
+
+- The backend host must already have the upstream `whisper` command on `PATH`.
+- The included Gitea Actions workflow runs backend tests and package builds automatically.