ops(scripts): dispatch, queue gating, heartbeat, quota probe

dispatch-turn.sh (headless turn launcher with TURN_MODEL routing),
queue-after.sh (serial gate chain + quota-wall guard), pmo-heartbeat.sh
(PMO wake loop), quota-probe-then-chain.sh (post-wall relaunch).

scripts/relaunch-screen.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+# relaunch-screen.sh <name> <pmo|work> [fuse] — restart an RCEO screen so it
+# re-reads ~/.screenrc (termcapinfo scroll fix). Fuse >0 schedules via helper
+# screen (used to restart RCEO-PMO from inside itself). Owner-run; no root.
+set -euo pipefail
+name="${1:?screen name}"; role="${2:?pmo|work}"; fuse="${3:-0}"
+SELF="$HOME/.coordinate/scripts/relaunch-screen.sh"
+if [ "$fuse" -gt 0 ]; then
+  screen -S RCEO-Relaunch -X quit 2>/dev/null || true
+  screen -dmS RCEO-Relaunch bash -c "sleep $fuse; $SELF $name $role 0"
+  echo "scheduled: $name restart in ${fuse}s"
+  exit 0
+fi
+screen -S "$name" -X quit 2>/dev/null || true
+sleep 2
+screen -dmS "$name" "$HOME/.coordinate/scripts/pmo-loop.sh" "$role"
+sleep 5
+if screen -ls 2>/dev/null | grep -q "\.$name"; then
+  echo "OK: $name relaunched"
+else
+  echo "FAILED: $name not present after relaunch" >&2; exit 1
+fi