test(patreon): fix #704 — quarantine status + budget-cut cursor assertions

Two test breaks from the structured-results change:
- An existing downloader test pinned a corrupt file to status "error";
  it's now the distinct "quarantined" status (the new behavior). Updated
  it + removed the duplicate I'd added.
- The budget-cut ingester test asserted the checkpoint cursor was the last
  FULLY-processed page (CUR1); it's actually the page we were cut on (CUR2,
  entered + cursor emitted before the budget check), matching the prior
  parse_last_cursor(last) semantics. Corrected the assertion.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_patreon_downloader.py

@@ -165,22 +165,6 @@ def test_skip_seen(tmp_path):
     assert not (tmp_path / "artist-x").exists()
 
 
-def test_invalid_file_is_quarantined(tmp_path):
-    """plan #704 (#4): a downloaded file that fails validation is moved to
-    _quarantine and reported as a 'quarantined' outcome carrying that path —
-    distinct from a download 'error'."""
-    bad_url = "https://cdn.patreon.com/bad.png"
-    session = _FakeSession({bad_url: b"this is not a valid PNG"})
-    dl = _downloader(tmp_path, session=session, validate=True)
-    outcomes = dl.download_post(
-        _post(), [_img("bad.png", url=bad_url)], "artist-x"
-    )
-    assert outcomes[0].status == "quarantined"
-    assert outcomes[0].path is not None
-    assert "_quarantine" in str(outcomes[0].path)
-    assert outcomes[0].path.is_file()
-
-
 def test_skip_disk(tmp_path):
     dl = _downloader(tmp_path)
     post_dir = tmp_path / "artist-x" / "patreon" / "2026-05-01_1001_My Post Title"
@@ -248,14 +232,17 @@ def test_one_failure_isolated(tmp_path):
 
 
 def test_validation_quarantines_corrupt(tmp_path):
-    # A .png whose bytes are not a valid PNG → validator fails → error +
-    # quarantine move; with validate=False it would pass.
+    # A .png whose bytes are not a valid PNG → validator fails → "quarantined"
+    # outcome (distinct from a download error) carrying the dest path +
+    # quarantine move; with validate=False it would pass. plan #704 (#4).
     bad = b"not a real png"
     session = _FakeSession({"https://cdn.patreon.com/corrupt.png": bad})
     dl = _downloader(tmp_path, session=session, validate=True)
     item = _img("corrupt.png", url="https://cdn.patreon.com/corrupt.png")
     outcomes = dl.download_post(_post(), [item], "artist-x")
-    assert outcomes[0].status == "error"
+    assert outcomes[0].status == "quarantined"
+    assert outcomes[0].path is not None
+    assert "_quarantine" in str(outcomes[0].path)
     post_dir = tmp_path / "artist-x" / "patreon" / "2026-05-01_1001_My Post Title"
     assert not (post_dir / "01_corrupt.png").exists()
     quarantine = tmp_path / "_quarantine" / "artist-x" / "patreon"

tests/test_patreon_ingester.py

@@ -280,7 +280,10 @@ async def test_backfill_budget_cut_returns_partial_with_progress(
     assert result.return_code == -1
     assert result.files_downloaded == 1  # post1 downloaded before the cut
     assert downloader.download_calls == 1  # post2's body never ran
-    assert result.cursor == "CUR1"  # structured checkpoint (plan #704)
+    # The checkpoint is the page we were CUT ON (CUR2 — entered, cursor emitted,
+    # then the budget check broke before processing it); the next chunk resumes
+    # there. Structured (plan #704), matching the old parse_last_cursor(last).
+    assert result.cursor == "CUR2"
 
 
 # --- recovery -------------------------------------------------------------