static ZOOM_MIRROR_GEN: OnceLock<Mutex<HashMap<String, u64>>>Expand description
Dispatch a command into the srv reducer and return the emitted
events. Locks the reducer mutex briefly; the lock is released
before any I/O (caller is responsible for publishing the events
to the broadcast bus).
Per-agent_id debounce generation for zoom mirroring. Each term:zoom
change bumps the agent’s generation; the spawned trailing-write task only
commits if its captured generation is still current 300ms later, so a
Ctrl+Wheel burst collapses into a single durable write (+ one global
def-registry re-mirror). See SPEC_AGENT_ZOOM_PERSISTENCE §4.3.