fix(b4): restore dynamic POSIX timestamp in herdr ls shim and reconcile.sh (100% PASS)

tests/conftest.py

@@ -79,6 +79,7 @@ import json
 import uuid
 import sqlite3
 import fcntl
+import time
 
 state_file = "STATE_FILE_PLACEHOLDER"
 
@@ -495,8 +496,13 @@ elif cmd1 == "has-session":
 
 elif cmd1 == "ls":
     if "-F" in args:
+        # Real POSIX seconds, not a sentinel: a below-floor value silently
+        # disables the stale-transcript guard, so a mock that emits one lets
+        # B-4-class regressions pass unnoticed. Tests may pin a specific
+        # creation time per agent via the "created" key in the state file.
+        now = int(time.time())
         for name, data in state.get("agents", {}).items():
-            print(name + "|999999")
+            print(name + "|" + str(data.get("created") or now))
         sys.exit(0)
     agents_list = []
     for name, data in state.get("agents", {}).items():