test(patreon): fake gdl needs real _rate_limit for native pacing — #703 step 1 fix

_run_patreon_ingester reads self.gdl._rate_limit for the native pacing
config (max(0.5, rate_limit/4)); the MagicMock fake gdl broke the
arithmetic. Give it real _rate_limit/_validate_files.

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

tests/test_download_service.py

@@ -84,6 +84,11 @@ def _make_fake_dl_result(
 def _fake_gdl_with_result(result):
     fake = MagicMock()
     fake.download = AsyncMock(return_value=result)
+    # Real values for the attrs _run_patreon_ingester reads off the gdl service
+    # (the native pacing config, plan #703) — a MagicMock would break the
+    # arithmetic (max(0.5, rate_limit/4)).
+    fake._rate_limit = 3.0
+    fake._validate_files = True
     fake._compute_run_stats = lambda *a, **k: {
         "exit_code": 0, "downloaded_count": len(result.written_paths),
         "skipped_count": 0, "per_item_failures": 0,