Fix slotted-adapter planning and offline Anthropic media previews

Signed-off-by: Maxime Rivest <mrive052@gmail.com>

Author: MaximeRivest

lm15/providers/common.py

@@ -364,8 +364,7 @@ def anthropic_source(part: ImagePart | DocumentPart | BinaryPart) -> dict[str, A
     if part.data is not None:
         return {"type": "base64", "media_type": part.media_type, "data": part.data}
     if part.path is not None:
-        data = base64.b64encode(part.path.read_bytes()).decode("ascii")
-        return {"type": "base64", "media_type": part.media_type, "data": data}
+        return {"type": "base64", "media_type": part.media_type, "data": media_base64(part)}
     raise ValueError(f"{part.type} part has no usable source")
 
 

lm15/providers/openai_chat.py

@@ -1883,7 +1883,7 @@ def plan(self, request: Request, *, policy: AdaptationPolicy | None = None) -> "
         wire_request = self._wire_request(request)
         if self._judgments_via_token_scoring(wire_request):
             return self._judgment_adaptations(wire_request, policy=policy)
-        return super().plan(request, policy=policy)
+        return BaseProviderLM.plan(self, request, policy=policy)
 
     def complete(self, request: Request) -> Response:
         wire_request = self._wire_request(request)