When --replace misses a cross-HERMES_HOME Telegram token holder, platform
connect used to retry forever. Terminate a verified gateway holder once
(with the takeover marker) and re-acquire the scoped lock (#65176).
Co-authored-by: Cursor <cursoragent@cursor.com>
When a stale lock file survives a gateway crash, `acquire_scoped_lock()`
may return `(False, existing_dict)` even after detecting and deleting
the stale lock (e.g. if unlink fails or a race condition occurs).
Previously, `_acquire_platform_lock()` called
`_set_fatal_error(..., retryable=False)`, which permanently killed the
platform — the reconnect watcher never retries a non-retryable fatal
error.
Change to `retryable=True` so the platform enters the "retrying"
state and the reconnect watcher can attempt acquisition again after the
standard backoff delay.
Fixes#54167
