fix: integrate handleChatCompletion to save chat memories

[sweetmantech]

Summary

• Integrates handleChatCompletion into chat handlers using the same pattern as Recoup-Chat
• Fixes the bug where conversations appear empty when users return to them

Implementation (matching Recoup-Chat pattern)

Streaming (handleChatStream.ts):

onFinish: ({ messages }) => {
  void handleChatCompletion(body, messages).catch((e) => {
    console.error("Failed to handle chat completion:", e);
  });
},

Generate (handleChatGenerate.ts):

const responseUIMessage = {
  id: generateUUID(),
  role: "assistant",
  parts: [{ type: "text", text: result?.text || "" }],
} as UIMessage;

void handleChatCompletion(body, [responseUIMessage]).catch((e) => {
  console.error("Failed to handle chat completion:", e);
});

Test plan

• All existing tests pass (16 tests)
• Mocks added for handleChatCompletion in test files

🤖 Generated with Claude Code

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Project	Deployment	Review	Updated (UTC)
recoup-api	Ready	Preview	Jan 16, 2026 9:37pm

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