feat(monitor): consolidate per-job watchdogs into shared wildcard subscriber (FW-W3)

.agents/skills/lib.sh

@@ -723,16 +723,28 @@ delegate_publish_event() {
 start_watchdog() {
   local job_id="$1"
   local workdir="${2:-$PWD}"
-  local watchdog_script="$workdir/.agents/skills/multi-agent-mux-monitor/scripts/watchdog.sh"
-  local log_file="$workdir/.mam/jobs/${job_id}.watchdog.log"
+  local monitor_script="$workdir/.agents/skills/multi-agent-mux-monitor/scripts/reconcile.sh"
+  local log_file="$workdir/.mam/multi-agent-mux-monitor.log"
   
-  if [ ! -x "$watchdog_script" ]; then
-    echo "ERROR: watchdog not found or not executable: $watchdog_script" >&2
+  if [ ! -f "$monitor_script" ]; then
+    echo "ERROR: monitor script not found: $monitor_script" >&2
     return 1
   fi
   
-  nohup "$watchdog_script" "$job_id" "$workdir" > "$log_file" 2>&1 &
-  local pid=$!
+  # Check if reconcile.sh --subscribe is already running on this workspace
+  local pid
+  pid=$(pgrep -f "bash $monitor_script --subscribe" || true)
+  
+  if [ -z "$pid" ]; then
+    # Start the wildcard monitor subscriber daemon with --idle-timeout 0 (never idle out)
+    # and ensure it runs with $workdir as cwd to anchor relative log paths.
+    local orig_pwd="$PWD"
+    cd "$workdir"
+    nohup bash "$monitor_script" --subscribe --idle-timeout 0 >> "$log_file" 2>&1 &
+    pid=$!
+    cd "$orig_pwd"
+  fi
+  
   echo "$pid"
 }