[rebase onto current master — same content as 5a7f7d8, no functional
changes beyond a single context-line merge from master]
Squash-rebase of #7656 onto current master so the 3-way merge CI
test no longer pulls in the unmerged stage/7618-7619-renderer-i18n
dirty diff that 5a7f7d8 was based on. The actual change set is
unchanged: 2 files, +231/-1.
What changed (from #7656 / 5a7f7d8):
- api/models.py::_read_max_session_resolve_concurrent — new
module-level helper that reads the cap from the env var
HERMES_WEBUI_MAX_SESSION_RESOLVE with strict validation
(positive int in [1, 64], malformed → default 2).
- tests/test_issue7421_resolve_cap_config.py — 12 regression
tests covering unset/empty/whitespace, headline cases (4/8/64),
safety paths (0/-1/999999/non-numeric), whitespace tolerance,
BoundedSemaphore capacity check, and a static wiring assertion.
Model: MiniMax-M3
happy5318
31e22a152b