After an agent restart the tracked sing-box handle is lost while
the old core survives reparented holding the inbound ports, so
every apply died on bind, rollback died the same way, and the
agent retried forever. startSingboxLocked now scans /proc for
processes whose argv carries run -c <exact live config path>
(excluding the tracked pid) and stops them SIGTERM-then-SIGKILL
before starting, covering the apply, rollback, and
unchanged-but-not-running paths. The exact-path match never
touches cores on other config files; Linux only.
Muse
66bf6a88eb