feat(transcribe,telegram,config): voice notes, round videos and audio get a transcript from pluggable providers, an openai-compatible one built in

tests/test_config_siblings.py

@@ -1,6 +1,8 @@
 import tempfile
 from pathlib import Path
 
+import pytest
+
 from beaver_gateway import config
 
 
@@ -14,3 +16,15 @@ def test_config_imports_sibling_modules():
     )
     gw = config.load(root / "config.py")
     assert gw.agents == []
+
+
+def test_config_takes_transcribers_and_refuses_what_cannot_be_called():
+    root = Path(tempfile.mkdtemp(prefix="beaver-cfg-"))
+    (root / "config.py").write_text(
+        "gateway = Gateway(transcribers=[OpenAITranscriber(language='ru')])\n"
+    )
+    (gw_stt,) = config.load(root / "config.py").transcribers
+    assert gw_stt.language == "ru" and gw_stt.model == "whisper-1"
+    (root / "config.py").write_text("gateway = Gateway(transcribers=['whisper'])\n")
+    with pytest.raises(config.ConfigError, match=r"transcribers\[0\]"):
+        config.load(root / "config.py")