Create HTTP_TIMEOUTS.md

[AndersonUece]

Documented practical timeout defaults so clients don’t hang indefinitely on bad networks.

---

Note

Low Risk
Low risk because this PR only adds documentation and does not change runtime code or behavior.

Overview
Adds new docs/HTTP_TIMEOUTS.md documenting recommended HTTP client defaults (connect/read/total timeouts) for CLOB endpoint calls, plus basic retry guidance (idempotent-only, exponential backoff with jitter, capped attempts).

^{Written by Cursor Bugbot for commit f849697. This will update automatically on new commits. Configure here.}