update: upload fix

backend/app/services/llm/claude_vision.py

@@ -1,8 +1,6 @@
 """Anthropic Claude Vision provider."""
 
 import base64
-import json
-import re
 from anthropic import AsyncAnthropic
 
 from app.config import get_settings
@@ -13,6 +11,9 @@ from app.services.llm.openai_vision import _parse_json_array
 
 
 class ClaudeVisionProvider(BaseLLMProvider):
+    def _get_model(self) -> str:
+        return self._model_override or get_settings().anthropic_model
+
     async def extract_from_image(self, image_bytes: bytes) -> list[TransactionExtractItem]:
         settings = get_settings()
         if not settings.anthropic_api_key:
@@ -20,14 +21,12 @@ class ClaudeVisionProvider(BaseLLMProvider):
         client = AsyncAnthropic(api_key=settings.anthropic_api_key)
         b64 = base64.standard_b64encode(image_bytes).decode("ascii")
         messages = get_extract_messages(b64)
-        # Claude API: user message with content block list
         user_content = messages[1]["content"]
         content_blocks = []
         for block in user_content:
             if block["type"] == "text":
                 content_blocks.append({"type": "text", "text": block["text"]})
             elif block["type"] == "image_url":
-                # Claude expects base64 without data URL prefix
                 content_blocks.append({
                     "type": "image",
                     "source": {
@@ -37,7 +36,7 @@ class ClaudeVisionProvider(BaseLLMProvider):
                     },
                 })
         response = await client.messages.create(
-            model=settings.anthropic_model,
+            model=self._get_model(),
             max_tokens=4096,
             system=messages[0]["content"],
             messages=[{"role": "user", "content": content_blocks}],
@@ -47,3 +46,20 @@ class ClaudeVisionProvider(BaseLLMProvider):
             if hasattr(block, "text"):
                 text += block.text
         return _parse_json_array(text or "[]")
+
+    async def chat(self, system: str, user: str) -> str:
+        settings = get_settings()
+        if not settings.anthropic_api_key:
+            raise ValueError("ANTHROPIC_API_KEY is not set")
+        client = AsyncAnthropic(api_key=settings.anthropic_api_key)
+        response = await client.messages.create(
+            model=self._get_model(),
+            max_tokens=4096,
+            system=system,
+            messages=[{"role": "user", "content": user}],
+        )
+        text = ""
+        for block in response.content:
+            if hasattr(block, "text"):
+                text += block.text
+        return text or ""