More bugfixes in the glossary protection guard module

tests/test_corrections.py

@@ -2,7 +2,8 @@ import pytest
 
 from audita.corrections import apply_corrections
 from audita.errors import AuditaValidationError
-from audita.schemas import CorrectionCandidate, parse_transcript_json
+from audita.protection import ProtectedVocabulary
+from audita.schemas import CorrectionCandidate, parse_glossary_yaml, parse_transcript_json
 
 
 def _transcript():
@@ -200,6 +201,44 @@ def test_apply_corrections_skips_when_guard_rejects_replacement():
     assert result.skipped[0].actual_text == "Hrank moves."
 
 
+def test_apply_corrections_guards_only_replacement_span():
+    transcript = parse_transcript_json(
+        """
+        [
+          {"id": 1, "speaker": "Eric", "start": 0.0, "end": 1.0, "text": "You have to keep it bind. Svend sees the jesters."}
+        ]
+        """
+    )
+    glossary = parse_glossary_yaml(
+        """
+        glossary:
+          - name: "Svend"
+            category: pc
+            summary: "Svend is a player character."
+          - name: "Jesters"
+            category: faction
+            summary: "The Jesters are a faction."
+        """
+    )
+    correction = CorrectionCandidate(
+        id=1,
+        original_text="keep it bind",
+        corrected_text="keep in mind",
+        confidence=0.8,
+    )
+
+    result = apply_corrections(
+        transcript,
+        [correction],
+        confidence_threshold=0.8,
+        replacement_mode="require_unique",
+        correction_guard=ProtectedVocabulary.from_glossary(glossary).violation_reason,
+    )
+
+    assert result.transcript[0].text == "You have to keep in mind. Svend sees the jesters."
+    assert result.skipped == []
+
+
 def test_apply_corrections_without_guard_remains_permissive():
     transcript = parse_transcript_json(
         """