Adding request_id to logs from CAS requests

[jgodlew]

• Add debug log to http client whenever we receive a response from CAS, logging the request_id and status code.
• Add request_id to error logs when a response from CAS fails
• Refactor logic to process http response result into a helper trait/fn for consistency across CAS apis.

[jgodlew]

Example error message:

{"timestamp":"2025-02-14T20:08:00.057728Z","level":"ERROR","fields":{"message":"upload_xorb api failed: request id: 01JM316G9MD5PVP61YX80YZHRK, error: reqwest::Error { kind: Status(400), url: \"http://localhost:4884/xorb/default/73287bdf1a5ff5e17d61cee9302adc33a38b10d2344ba65443e50a3ef4db5148\" }","caller":"/Users/jgodlew/git/huggingface/xet-core/cas_client/src/http_client.rs:198"},"filename":"/Users/jgodlew/git/huggingface/xet-core/error_printer/src/lib.rs","line_number":28}

[assafvayner]

small nit, otherwise LGTM

[seanses]

LGTM! Can you also help refactor similar places in HttpShardClient?

[jgodlew]

Can you also help refactor similar places in HttpShardClient?

HttpShardClient should also have the refactors (uses process_error instead of multiple log_errors). The only place I didn't update was get_dedup_shards, as it is a "best-effort" API and we swallow unsuccessful requests.