Update application code and dependencies

app/api/chat/route.ts

@@ -0,0 +1,38 @@
+import { NextResponse } from "next/server"
+
+const API_KEY = 'app-lbe2lglt7taGtZk0dG7pAhbx'
+const API_URL = 'http://df.clkeji.com/v1/chat-messages'
+
+export async function POST(request: Request) {
+  try {
+    const body = await request.json()
+
+    const response = await fetch(API_URL, {
+      method: 'POST',
+      headers: {
+        'Authorization': `Bearer ${API_KEY}`,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify(body),
+    })
+
+    if (body.response_mode === 'streaming') {
+      return new NextResponse(response.body, {
+        headers: {
+          'Content-Type': 'text/event-stream',
+          'Cache-Control': 'no-cache',
+          'Connection': 'keep-alive',
+        },
+      })
+    }
+
+    const data = await response.json()
+    return NextResponse.json(data)
+  } catch (error) {
+    console.error('Chat API error:', error)
+    return NextResponse.json(
+      { error: 'Failed to connect to chat service' },
+      { status: 500 }
+    )
+  }
+}