feat: put the account's Full VPN setting back when the VPN goes off; release 0.1.3

The node the plugin sets is account-wide, so the PC's Mudfish would also
start in Full VPN. Remember the account's own value before changing it and
restore it on every teardown (off, connect failure, resume, unload,
uninstall); retry in the background if the restore fails.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

main.py

@@ -16,6 +16,7 @@ from mudfish_decky.store import Store  # noqa: E402
 
 RESUME_POLL_SECONDS = 2
 LATEST_POLL_TICKS = 1800  # every hour at 2s per tick
+RESTORE_RETRY_TICKS = 30  # retry a pending account restore every minute
 LOGIN_RELAY_SECONDS = 300
 
 
@@ -89,6 +90,8 @@ class Plugin:
                 controller.check_resume(system.sleep_offset())
                 if ticks % LATEST_POLL_TICKS == 0:
                     await asyncio.to_thread(controller.refresh_latest)
+                if ticks % RESTORE_RETRY_TICKS == 0:
+                    await asyncio.to_thread(controller.retry_restore)
             except Exception as e:
                 decky.logger.warning("background check failed: %s", e)
             ticks += 1