feat(work): add pre-flight health gate for Hatch, Restore, and Git Config

tests/test_box_work.py

@@ -43,5 +43,20 @@ class TestBoxWork(unittest.TestCase):
         res = box_work.get_recent_done_tasks(limit=5)
         self.assertIsInstance(res, list)
 
+    def test_check_agent_preflight_structure(self):
+        res = box_work.check_agent_preflight("opm")
+        self.assertIn("hatch", res)
+        self.assertIn("restore", res)
+        self.assertIn("git", res)
+        self.assertIn("status", res["hatch"])
+        self.assertIn("status", res["restore"])
+        self.assertIn("status", res["git"])
+        self.assertIn("ready", res)
+
+    def test_check_agent_preflight_unknown_fails(self):
+        res = box_work.check_agent_preflight("nonexistent_agent_xyz")
+        self.assertFalse(res["ready"])
+        self.assertEqual(res["overall"], "FAIL")
+
 if __name__ == "__main__":
     unittest.main()