chore(publication): close pre-integration release blockers

tests/hwfit_publication_fixtures.py

@@ -0,0 +1,33 @@
+"""Authored ranking inputs; factual identifiers from regression tests are selectors.
+
+All sizes, dates and capabilities are synthetic, not statements about Hub models.
+No copied production-catalog rows or descriptions are included.
+
+The fixture is opt-in: a module imports ``publication_catalog`` and requests it
+explicitly (``pytestmark = pytest.mark.usefixtures("publication_catalog")`` or
+a test argument). It yields the authored input rows so tests can derive their
+expectations from the input instead of restating it.
+"""
+import json
+from pathlib import Path
+
+import pytest
+
+FIXTURE_PATH = Path(__file__).parent / "fixtures/hwfit_publication_models.json"
+
+
+def authored_rows():
+    return json.loads(FIXTURE_PATH.read_text())
+
+
+@pytest.fixture
+def publication_catalog(monkeypatch):
+    from services.hwfit import models, hf_discovery
+
+    rows = authored_rows()
+    # Exercise the real merge/normalization path, independent of user caches.
+    monkeypatch.setattr(models, "_models_cache", None)
+    monkeypatch.setattr(models, "_load_model_file", lambda path: rows if str(path) == models.model_catalog_path() else [])
+    monkeypatch.setattr(hf_discovery, "load_cached_hf_collection_models", lambda: [])
+    monkeypatch.setattr(hf_discovery, "load_cached_mlx_community_models", lambda: [])
+    yield authored_rows()