fix cross-protocol conversation file compatibility

src/web/pages/helpers/conversationFileCapabilities.test.ts

@@ -16,16 +16,16 @@ describe('resolveConversationFileCapability', () => {
     });
   });
 
-  it('marks Claude and Gemini as inline-only document transports', () => {
+  it('marks Claude and Gemini picker flows as inline-only document transports', () => {
     expect(resolveConversationFileCapability('claude')).toEqual({
       supported: true,
       documentMode: 'inline_only',
-      reason: '当前协议会以内联文档方式发送会话附件。',
+      reason: '当前界面的会话附件会以内联文档方式发送。',
     });
     expect(resolveConversationFileCapability('gemini')).toEqual({
       supported: true,
       documentMode: 'inline_only',
-      reason: '当前协议会以内联文档方式发送会话附件。',
+      reason: '当前界面的会话附件会以内联文档方式发送。',
     });
   });
 });

src/web/pages/helpers/conversationFileCapabilities.ts

@@ -21,7 +21,7 @@ export function resolveConversationFileCapability(
     return {
       supported: true,
       documentMode: 'inline_only',
-      reason: '当前协议会以内联文档方式发送会话附件。',
+      reason: '当前界面的会话附件会以内联文档方式发送。',
     };
   }
 

src/web/pages/helpers/modelTesterSession.test.ts

@@ -15,6 +15,7 @@ import {
   collectModelTesterModelNames,
   countConversationTurns,
   createConversationUserMessage,
+  extractConversationUploadedFilesFromMessage,
   filterModelTesterModelNames,
   parseCustomRequestBody,
   parseModelTesterSession,
@@ -222,6 +223,56 @@ describe('modelTesterSession', () => {
     ]);
   });
 
+  it('extracts inline conversation file data for retry flows', () => {
+    const files = extractConversationUploadedFilesFromMessage({
+      id: 'u1',
+      role: 'user',
+      content: '请总结附件',
+      createAt: 1,
+      parts: [
+        {
+          type: 'input_file',
+          filename: 'brief.pdf',
+          mimeType: 'application/pdf',
+          data: 'data:application/pdf;base64,JVBERi0xLjQK',
+        },
+      ],
+    });
+
+    expect(files).toEqual([
+      {
+        filename: 'brief.pdf',
+        mimeType: 'application/pdf',
+        data: 'data:application/pdf;base64,JVBERi0xLjQK',
+      },
+    ]);
+  });
+
+  it('extracts uploaded file references for retry flows', () => {
+    const files = extractConversationUploadedFilesFromMessage({
+      id: 'u2',
+      role: 'user',
+      content: '请继续分析',
+      createAt: 2,
+      parts: [
+        {
+          type: 'input_file',
+          fileId: 'file-metapi-456',
+          filename: 'appendix.txt',
+          mimeType: 'text/plain',
+        },
+      ],
+    });
+
+    expect(files).toEqual([
+      {
+        fileId: 'file-metapi-456',
+        filename: 'appendix.txt',
+        mimeType: 'text/plain',
+      },
+    ]);
+  });
+
   it('preserves file reference parts when building responses conversation payloads', () => {
     const payload = buildApiPayload(
       [{

src/web/pages/helpers/modelTesterSession.ts

@@ -901,6 +901,37 @@ export const createConversationUserMessage = (
   });
 };
 
+export const extractConversationUploadedFilesFromMessage = (
+  message: ChatMessage,
+): ConversationUploadedFile[] => {
+  const parts = Array.isArray(message.parts) ? message.parts : [];
+  return parts.flatMap((part) => {
+    if (part.type !== 'input_file') return [];
+
+    const fileId = typeof part.fileId === 'string' && part.fileId.trim()
+      ? part.fileId.trim()
+      : null;
+    const filename = typeof part.filename === 'string' && part.filename.trim()
+      ? part.filename.trim()
+      : null;
+    const mimeType = typeof part.mimeType === 'string' && part.mimeType.trim()
+      ? part.mimeType.trim()
+      : null;
+    const data = typeof part.data === 'string' && part.data.trim()
+      ? part.data.trim()
+      : null;
+
+    if (!fileId && !data) return [];
+
+    return [{
+      ...(fileId ? { fileId } : {}),
+      ...(filename ? { filename } : {}),
+      ...(mimeType ? { mimeType } : {}),
+      ...(data ? { data } : {}),
+    }];
+  });
+};
+
 export const createLoadingAssistantMessage = (): ChatMessage =>
   createMessage('assistant', '', {
     status: MESSAGE_STATUS.LOADING,