Handle invalid ffprobe JSON during stage1

tests/test_cli.py

@@ -161,6 +161,88 @@ def test_scan_command_processes_stage1_results_and_exports_reports(
     assert csv_path.exists()
 
 
+def test_scan_command_treats_invalid_probe_json_with_nonzero_exit_as_confirmed_broken(
+    tmp_path: Path, monkeypatch
+) -> None:
+    root = tmp_path / "videos"
+    root.mkdir()
+    broken = root / "broken.mp4"
+    broken.write_bytes(b"broken")
+    db_path = tmp_path / "scan_state.db"
+
+    def fake_run_ffprobe(path, **kwargs):
+        return ProbeExecutionResult(
+            status="completed",
+            command=("ffprobe", str(path)),
+            exit_code=1,
+            stdout_text='{\n',
+            stderr_text="",
+            elapsed_ms=1,
+        )
+
+    monkeypatch.setattr("tgvideo_check.cli.run_ffprobe", fake_run_ffprobe)
+
+    result = runner.invoke(
+        app,
+        [
+            "scan",
+            str(root),
+            "--db",
+            str(db_path),
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert "Scanned 1 file(s)" in result.stdout
+    assert "confirmed_broken=1" in result.stdout
+
+    store = ScanStore(db_path)
+    rows = store.list_files(1)
+    assert rows[0].final_status == "confirmed_broken"
+    assert rows[0].reason_code == "ffprobe_exit_nonzero"
+
+
+def test_scan_command_treats_invalid_probe_json_with_zero_exit_as_command_error(
+    tmp_path: Path, monkeypatch
+) -> None:
+    root = tmp_path / "videos"
+    root.mkdir()
+    broken = root / "broken.mp4"
+    broken.write_bytes(b"broken")
+    db_path = tmp_path / "scan_state.db"
+
+    def fake_run_ffprobe(path, **kwargs):
+        return ProbeExecutionResult(
+            status="completed",
+            command=("ffprobe", str(path)),
+            exit_code=0,
+            stdout_text='{\n',
+            stderr_text="",
+            elapsed_ms=1,
+        )
+
+    monkeypatch.setattr("tgvideo_check.cli.run_ffprobe", fake_run_ffprobe)
+
+    result = runner.invoke(
+        app,
+        [
+            "scan",
+            str(root),
+            "--db",
+            str(db_path),
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert "Scanned 1 file(s)" in result.stdout
+    assert "command_error=1" in result.stdout
+
+    store = ScanStore(db_path)
+    rows = store.list_files(1)
+    assert rows[0].final_status == "command_error"
+    assert rows[0].reason_code == "invalid_probe_output"
+
+
 def test_scan_command_leaves_stage2_pending_by_default(tmp_path, monkeypatch) -> None:
     root = tmp_path / "videos"
     root.mkdir()