Treat language selection as meeting language

tests/test_meeting_service.py

@@ -323,19 +323,28 @@ def test_build_context_translates_mentioned_only_person(tmp_path: Path) -> None:
     ]
 
 
+@pytest.mark.parametrize("language", ["de", "en"])
 def test_process_translates_configuration_and_disables_diarization(
     tmp_path: Path,
+    language: str,
 ) -> None:
     service, gateway = make_service(tmp_path)
     audio = tmp_path / "meeting.wav"
     audio.write_bytes(b"audio")
 
     outcome = service.process(
-        audio, meeting(), participants(), ProcessingOptions(diarization_enabled=False)
+        audio,
+        replace(meeting(), language=language),
+        participants(),
+        ProcessingOptions(diarization_enabled=False),
     )
 
     assert outcome.succeeded
     assert gateway.config_values is not None
+    assert gateway.config_values["language"] == language
+    assert service.build_context(replace(meeting(), language=language), participants()).data[
+        "meeting"
+    ]["language"] == language
     assert gateway.config_values["diarization"] == "off"
     assert gateway.config_values["model"] == "test:model"
     assert gateway.config_values["protocol_num_ctx"] == 32_768