HMS-5790: cannot change size of upload

[xbhouse]

Summary

Adds the size of the upload to the uploads table and takes the size into account when creating an upload

Testing steps

1. Create an upload via the API and specify a size that's smaller than the chunk size:

curl --location 'localhost:8000/api/content-sources/v1.0/repositories/uploads/' \
--header 'x-rh-identity: <identity>' \
--header 'Content-Type: application/json' \
--data '{
    "size": 7050,
    "chunk_size": 7068,
    "sha256": "08d4c0799e06278e5c6aba9b2b979c55802c5ec6083906220d712bf0031a8450"
}'

{
  "upload_uuid":"01969199-f854-712c-a1a4-6497c73a6d03",
  "created":"2025-05-02T15:25:09.077058Z",
  "last_updated":"2025-05-02T15:25:09.077071Z",
  "size":7050
}

You should see an upload created in the uploads table in the content sources db and when listing uploads (pulp upload list) via the pulp CLI.

2. Recreate the upload with the same sha and chunk size, but with the correct size of the rpm. You should see a new upload created with a different UUID than the first one.

3. Uploading a chunk to the original upload (the one with the wrong size) should fail, this is expected:

curl --location 'localhost:8000/api/content-sources/v1.0/repositories/uploads/01969199-f854-712c-a1a4-6497c73a6d03/upload_chunk/' \
--header 'x-rh-identity: <identity>' \
--header 'Content-Range: bytes 0-7067/*' \ 
--form 'file=@"/Users/bhouse/rpms/testfileaa"' \      
--form 'sha256="08d4c0799e06278e5c6aba9b2b979c55802c5ec6083906220d712bf0031a8450"'  

{"errors":[{"status":400,"title":"error uploading chunk","detail":"uploading file chunk: 400 Bad Request: {\"non_field_errors\":[\"End byte is greater than upload size.\"]}"}]}

Uploading a chunk to the new upload (the one with the correct size) should succeed.

4. Uploading rpms in the UI and upload cleanup (go run cmd/external-repos/main.go upload-cleanup) should still work as before.

[jlsherrill]

https://issues.redhat.com/browse/HMS-5790

[rverdile]

looks good!