fix(timezone): add timezone-aware clock across agent, cron, and execute_code

tests/cron/test_jobs.py

@@ -72,8 +72,9 @@ class TestParseSchedule:
         assert "run_at" in result
         # run_at should be ~30 minutes from now
         run_at = datetime.fromisoformat(result["run_at"])
-        assert run_at > datetime.now()
-        assert run_at < datetime.now() + timedelta(minutes=31)
+        now = datetime.now().astimezone()
+        assert run_at > now
+        assert run_at < now + timedelta(minutes=31)
 
     def test_every_becomes_interval(self):
         result = parse_schedule("every 2h")
@@ -126,15 +127,15 @@ class TestComputeNextRun:
         result = compute_next_run(schedule)
         next_dt = datetime.fromisoformat(result)
         # Should be ~60 minutes from now
-        assert next_dt > datetime.now() + timedelta(minutes=59)
+        assert next_dt > datetime.now().astimezone() + timedelta(minutes=59)
 
     def test_interval_subsequent_run(self):
         schedule = {"kind": "interval", "minutes": 30}
-        last = datetime.now().isoformat()
+        last = datetime.now().astimezone().isoformat()
         result = compute_next_run(schedule, last_run_at=last)
         next_dt = datetime.fromisoformat(result)
         # Should be ~30 minutes from last run
-        assert next_dt > datetime.now() + timedelta(minutes=29)
+        assert next_dt > datetime.now().astimezone() + timedelta(minutes=29)
 
     def test_cron_returns_future(self):
         pytest.importorskip("croniter")
@@ -142,7 +143,7 @@ class TestComputeNextRun:
         result = compute_next_run(schedule)
         assert result is not None
         next_dt = datetime.fromisoformat(result)
-        assert next_dt > datetime.now()
+        assert next_dt > datetime.now().astimezone()
 
     def test_unknown_kind_returns_none(self):
         assert compute_next_run({"kind": "unknown"}) is None