fix(voice): prevent regex heuristic from overwriting LLM-extracted customer name

- Block old _voice_downstream_name_update from overwriting name_obtained status
  unless user explicitly says 'меня зовут X' (explicit_candidate only)
- Move _persist_voice_name_state to run AFTER LLM extraction, not before,
  so LLM always gets a chance to override the regex result
- Fixes bug where phrases like 'можешь назвать их' were incorrectly
  captured as customer name, overwriting the real name

services/ai_orchestrator_service/voice.py

@@ -712,9 +712,7 @@ def _voice_downstream_name_update(
             action = "provide" if not name_value else "confirm"
             candidate = candidate or name_value
     elif status == "name_obtained":
-        if candidate and candidate_key and candidate_key != current_key and (
-            _voice_has_name_correction(transcript_text) or explicit_candidate is not None
-        ):
+        if explicit_candidate and candidate_key and candidate_key != current_key:
             action = "correct"
     else:
         if explicit_candidate:
@@ -1934,15 +1932,6 @@ def turn_voice_session(session_id: str, payload: VoiceAITurnIn) -> VoiceAITurnDe
             if finalized_name:
                 name_update["value"] = finalized_name
                 name_update["resolved_at"] = now
-        _persist_voice_name_state(
-            session,
-            voice_session=voice_session,
-            status=name_update["status"],
-            value=name_update["value"],
-            source=name_update["source"],
-            resolved_at=name_update["resolved_at"],
-        )
-
         kb_results = app._kb_search(
             session,
             payload.transcript_text,
@@ -1978,14 +1967,15 @@ def turn_voice_session(session_id: str, payload: VoiceAITurnIn) -> VoiceAITurnDe
             )
             if finalized_name:
                 name_update["value"] = finalized_name
-            _persist_voice_name_state(
-                session,
-                voice_session=voice_session,
-                status=name_update["status"],
-                value=name_update["value"],
-                source=name_update["source"],
-                resolved_at=name_update["resolved_at"],
-            )
+
+        _persist_voice_name_state(
+            session,
+            voice_session=voice_session,
+            status=name_update["status"],
+            value=name_update["value"],
+            source=name_update["source"],
+            resolved_at=name_update["resolved_at"],
+        )
 
         decision_metadata = _voice_name_metadata(
             language=voice_session.voice_start_language or ai_session.language or "ru",