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2f2479ca35
The IPC event thread had no reconnect: on POLLHUP/POLLERR/POLLNVAL or read()==0/error it broke out of the loop and the thread exited permanently, freezing every mango module with stale content until Waybar was restarted. Wrap the connect + poll/read loop in a reconnect loop with a bounded 2s backoff, re-establishing the socket and resuming on disconnect, modeled on the niri backend. Add an atomic running_ flag so the worker exits cleanly on teardown; the destructor now sets it false before closing the socket so the worker breaks out and joins, and leaves the final close to the destructor to avoid a double close.