Convert in-place pkg.__path__=[] mutations on the REAL agent/hermes_cli
packages to monkeypatch.setattr (auto-restored), and make
test_issue1574's _activate_spawn_fake_agent snapshot+restore the
HERMES_WEBUI_AGENT_DIR/PYTHONPATH/sys.path it mutates.
Fixes:
- test_v050259_sessiondb_fd_leak::test_session_db_close_is_idempotent
- test_tls_support::test_tls_startup_failure_fallback_to_http
A hermes-agent build that returns a non-dict (e.g. None) for an unknown
preset without raising would make resolved.update(selected) raise TypeError,
which bypasses the routes.py except RuntimeError guard and surfaces as an
unhandled 500 on /api/chat/start. Coerce a non-dict result to {} so preset
resolution degrades cleanly. Adds a regression test.
- Keep resolve_moa_preset optional so older hermes-agent installs still degrade gracefully.
- Surface MoA presets in the WebUI model picker as a virtual provider.
- Keep configured Copilot per-model settings from collapsing the built-in catalog.
- Refresh the Copilot static fallback used when the live catalog probe misses.
Verification:
./scripts/test.sh tests/test_issue5057_moa_webui_route.py tests/test_copilot_provider_model_settings_not_allowlist.py tests/test_moa_model_picker_provider.py -q
11 passed, 1 skipped
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