Review on #120071 (yoniebans) found tests deleted as 'dead' that were only
mis-gated, and regression tests with no remaining equivalent:
- Discord voice receive (real NaCl/RTP: wrong-key drop, DAVE decrypt
failure, malformed padding, non-allowlisted speaker) moves out of the
never-selected tests/integration/ to tests/plugins/platforms/, where no
conftest stubs discord.py; 34 pass with the messaging extra.
- Five *_windows_live.py files had a bare skipif(win32), so
list_os_marked_tests.py never selected them; now windows_only.
- iron-proxy token-swap E2E (opt-in gate) is back.
- Gateway regressions: cached agent iteration cap (#48127), clarify JSON
never renders as progress (#52374), handoff watcher DB work off the event
loop, delivery ledger single connection, checkpoint prune and memory trim
housekeeping ticks.
- Desktop: command-screenshot IPC rejection, inactive WSL bridge never
spawns wsl.exe, bootstrap runner git binary.