optional semantic retrieval

tests/test_registry_service.py

@@ -3,6 +3,7 @@ import subprocess
 from repo_registry.core.service import RegistryService
 from repo_registry.llm_extraction import ExtractedAbility, ExtractedCapability
 from repo_registry.repo_ingestion.git import GitIngestionService
+from repo_registry.semantic import HashingEmbeddingProvider
 from repo_registry.storage.sqlite import NotFoundError, RegistryStore
 
 
@@ -290,6 +291,60 @@ def test_search_filters_by_status_language_and_framework(tmp_path):
     assert wrong_capability_results == []
 
 
+def test_semantic_search_adds_hybrid_matches_without_changing_text_default(tmp_path):
+    source = tmp_path / "repo"
+    source.mkdir()
+    (source / "README.md").write_text(
+        "# Queue Worker\n\nHandles postponed customer jobs.\n",
+        encoding="utf-8",
+    )
+
+    text_service = make_service(tmp_path)
+    repository = text_service.register_repository(
+        name="Queue Worker",
+        url=str(source),
+        description="Processes deferred customer work.",
+    )
+    ability_id = text_service.add_ability(
+        repository.id,
+        name="Background Job Processing",
+        description="Run deferred work outside request handling.",
+        confidence=0.8,
+    )
+    capability_id = text_service.add_capability(
+        repository.id,
+        ability_id,
+        name="Process Customer Tasks",
+        description="Execute queued customer tasks asynchronously.",
+        confidence=0.7,
+    )
+    text_service.add_feature(
+        repository.id,
+        capability_id,
+        name="worker task loop",
+        type="background worker",
+        location="worker.py",
+        confidence=0.6,
+    )
+    text_service.analyze_repository(repository.id)
+
+    assert text_service.search("customer queued") == []
+
+    semantic_service = RegistryService(
+        text_service.store,
+        ingestion=GitIngestionService(tmp_path / "checkouts"),
+        embedding_provider=HashingEmbeddingProvider(),
+    )
+    results = semantic_service.search("customer queued")
+
+    assert results
+    assert results[0].match_type in {"capability", "content_chunk"}
+    assert results[0].matched_field == "semantic"
+    assert results[0].vector_score > 0
+    assert results[0].hybrid_score >= results[0].vector_score * 0.35
+    assert any(result.match_type == "content_chunk" for result in results)
+
+
 def test_register_repository_imports_metadata_when_name_is_omitted(tmp_path):
     source = tmp_path / "metadata-source"
     source.mkdir()