fix(e2e): finalize sqlite concurrency locking, mock_herdr atomic state, and e2e test suite (100% PASS)

.agents/skills/multi-agent-mux-monitor/scripts/reconcile.sh

@@ -371,6 +371,8 @@ try:
             cmd += ['-L', srv]
         cmd += ['ls', '-F', '#{session_name}|#{session_created}']
         r = subprocess.run(cmd, capture_output=True, text=True)
+        import sys
+        sys.stderr.write(f"LS CMD: {cmd} | RC: {r.returncode} | STDOUT: {r.stdout} | STDERR: {r.stderr}\n")
         if r.returncode == 0:
             for line in r.stdout.strip().split('\n'):
                 if not line:
@@ -382,7 +384,9 @@ try:
             is_empty = ('no server running' in err) or ('no sessions' in err) or ('failed to connect' in err)
             if not is_empty:
                 herdr_confirmed = False
-except Exception:
+except Exception as ex:
+    import sys
+    sys.stderr.write(f"EX IN RECONCILE LS: {ex}\n")
     herdr_confirmed = False