fix(eval): score full anchored completions

tests/test_abliterate.py

@@ -118,6 +118,14 @@ class TestCoherenceScoring:
     def test_accepts_relevant_completion(self, prompt, completion):
         assert _is_coherent_completion(prompt, completion) is True
 
+    def test_accepts_concise_anchored_completion(self):
+        assert _is_coherent_completion("The capital of France is", "Paris") is True
+
+    def test_scores_anchors_after_log_preview_boundary(self):
+        completion = "The exact defined value follows. " + ("context " * 30) + "299,792,458 m/s"
+        assert len(completion) > 200
+        assert _is_coherent_completion("The speed of light in a vacuum is", completion) is True
+
     def test_rejects_fluent_but_irrelevant_completion(self):
         assert _is_coherent_completion(
             "The capital of France is",
@@ -305,6 +313,7 @@ class TestPipelineInit:
             pipeline._enforce_generation_guardrails(coherence, degenerate)
 
         assert exc_info.value.metric == metric
+        assert pipeline._quality_metrics["coherence_degenerate_fraction"] == degenerate
 
     def test_cancellation_is_terminal_and_cleanup_unloads_model(self):
         from threading import Event