Fix async telemetry coverage audit

runs/action-aware-v0/test_pilot.py

@@ -81,6 +81,25 @@ def main() -> None:
     assert summary["waiting_unresolved_count"] == 1
     assert summary["waiting_count"] == 4
 
+    # A per-step stream may have a submit gap above one second when the
+    # preceding model execution itself spans that interval.  Such a gap is
+    # covered telemetry, not a dropped-record interval.
+    asynchronous = [
+        {"submit_mono_ns": 0, "complete_mono_ns": 1_200_000_000},
+        {"submit_mono_ns": 1_100_000_000, "complete_mono_ns": 1_300_000_000},
+    ]
+    coverage, covered = analysis.telemetry_coverage(
+        asynchronous, start_ns=0, end_ns=1_100_000_000
+    )
+    assert coverage["max_internal_submit_gap_s"] == 1.1
+    assert coverage["max_uncovered_gap_s"] == 0.0
+    assert covered
+    missing = copy.deepcopy(asynchronous)
+    missing[0]["complete_mono_ns"] = 0
+    assert not analysis.telemetry_coverage(
+        missing, start_ns=0, end_ns=1_100_000_000
+    )[1]
+
     manifest = {
         "repetitions": {str(index): {} for index in (1, 2, 3)},
         "regimes": {