feat(classifier): add multilingual ECP inherence classifier POC

tests/test_adapters.py

@@ -0,0 +1,34 @@
+"""Unit tests for optional adapter interfaces (Tier 2 / Tier 3)."""
+
+from src.adapters.embeddings import LocalEmbeddingsAdapter
+from src.adapters.llm import LLMFallbackAdapter
+from src.classifier import InherenceClassifier
+from src.models import ECPSnapshot
+
+
+def test_embeddings_adapter_interface():
+    adapter = LocalEmbeddingsAdapter()
+    assert isinstance(adapter.is_available(), bool)
+    assert adapter.evaluate_similarity("test text", ["term1", "term2"]) == 0.0
+
+
+def test_llm_adapter_interface():
+    adapter = LLMFallbackAdapter()
+    assert isinstance(adapter.is_available(), bool)
+
+
+def test_classifier_with_adapter_flags():
+    classifier = InherenceClassifier(enable_embeddings=True, enable_llm=True)
+    assert classifier._embeddings_adapter is not None
+    assert classifier._llm_adapter is not None
+
+    ecp = ECPSnapshot(
+        target_entity_id="ent_test",
+        target_name="TestCorp",
+        aliases=["TestCorp"],
+        domain="Tech",
+        anchors=["software"]
+    )
+    res = classifier.classify(ecp, "TestCorp builds enterprise cloud software.")
+    assert res.decision.value == "DIRECT_INHERENT"
+    assert res.is_inherent is True