Sync from dev @ 497baf0

Source: main (497baf0)
Excluded: live tenant exports, generated artifacts, and dev-only tooling.

scripts/common.py

@@ -114,6 +114,15 @@ def request_json(
         except urllib.error.HTTPError as exc:
             last_error = exc
             if exc.code not in retry_codes or attempt == max_retries:
+                body = ""
+                try:
+                    body = exc.read().decode("utf-8", errors="replace")[:2048]
+                except Exception:
+                    pass
+                if body:
+                    raise RuntimeError(
+                        f"{method} {url} failed: HTTP Error {exc.code}: {exc.reason} — {body}"
+                    ) from exc
                 raise
             retry_after = _get_retry_after_seconds(exc)
             sleep = retry_after if retry_after is not None else (2 ** attempt)