fix anthropic rest calls

jrnl/llm_providers/anthropic_provider.py

@@ -29,17 +29,22 @@ class AnthropicProvider(LLMProvider):
                 'anthropic-version': '2023-06-01',
                 'Content-Type': 'application/json'
             },
-            data={
+            json={
                 'model': self.model,
                 'max_tokens': max_tokens,
                 'temperature': 0.3,
                 'messages': [
                     {
                         'role': 'user',
+                        'content': [
+                            {
+                                'type': 'text',
                                 'text': prompt
                             }
                         ]
                     }
+                ]
+            }
         )
 
         return res.json()
@@ -85,7 +90,7 @@ class AnthropicProvider(LLMProvider):
             return message.get('content', [])[0].get('text').strip()
 
         except IndexError as e:
-            return f"[Anthropic Error] Failed to generate daily."
+            return f"[Anthropic Error] Failed to generate daily: {type(e).__name__}: {e}"
         except Exception as e:
             raise RuntimeError(f"Failed to generate daily: {type(e).__name__}: {e}")