feat: qualify complete K1 replay on worker

tests/test_e21_realtime_envelope.py

@@ -55,6 +55,48 @@ def test_camera_replay_loads_segments_lazily_and_checks_each_digest(tmp_path: Pa
         next(events)
 
 
+def test_camera_replay_complete_recording_mode_has_no_duration_cutoff(
+    tmp_path: Path,
+) -> None:
+    module = _module(
+        "e28_complete_source_replay_test",
+        "experiments/perception/run_e12_shadow_transport_replay.py",
+    )
+    epoch = tmp_path / "epoch-1"
+    segments = epoch / "segments"
+    segments.mkdir(parents=True)
+    (epoch / "init.mp4").write_bytes(b"init")
+    rows = []
+    for sequence, epoch_ns in ((1, 100_000_000), (2, 2_100_000_000)):
+        payload = f"frame-{sequence}".encode()
+        path = segments / f"{sequence}.m4s"
+        path.write_bytes(payload)
+        rows.append(
+            {
+                "host_epoch_ns": epoch_ns,
+                "host_monotonic_ns": epoch_ns,
+                "length": len(payload),
+                "path": f"segments/{sequence}.m4s",
+                "sequence": sequence,
+                "sha256": hashlib.sha256(payload).hexdigest(),
+            }
+        )
+    (epoch / "index.jsonl").write_text(
+        "".join(json.dumps(row) + "\n" for row in rows),
+        encoding="utf-8",
+    )
+
+    bounded = list(module._camera_events(epoch, 1.0))
+    complete = list(module._camera_events(epoch, None))
+
+    assert [event.modality for event in bounded] == ["camera-init", "camera-frame"]
+    assert [event.modality for event in complete] == [
+        "camera-init",
+        "camera-frame",
+        "camera-frame",
+    ]
+
+
 def test_e21_trend_reports_accumulating_age_and_stable_memory() -> None:
     module = _module(
         "e21_analyzer_test",