feat: add OCR recognition feature with page and API route

app/api/ocr/route.ts

@@ -0,0 +1,46 @@
+import { NextRequest, NextResponse } from "next/server"
+
+const OCR_SERVICE_URL = "http://192.168.10.236:8000/ocr/predict-pdf-file"
+
+export async function POST(request: NextRequest) {
+  try {
+    const formData = await request.formData()
+    const file = formData.get("file")
+
+    if (!file || !(file instanceof Blob)) {
+      return NextResponse.json({ error: "请上传文件" }, { status: 400 })
+    }
+
+    const ocrFormData = new FormData()
+    const fileName = file instanceof File ? file.name : "file"
+    ocrFormData.append("file", file, fileName)
+
+    const response = await fetch(OCR_SERVICE_URL, {
+      method: "POST",
+      body: ocrFormData,
+      signal: AbortSignal.timeout(60000),
+    })
+
+    if (!response.ok) {
+      return NextResponse.json(
+        { error: `OCR 服务请求失败 (${response.status})` },
+        { status: 502 }
+      )
+    }
+
+    const data = await response.json()
+    return NextResponse.json(data)
+  } catch (error) {
+    console.error("OCR API error:", error)
+    return NextResponse.json(
+      { error: "OCR 识别失败，请稍后重试" },
+      { status: 500 }
+    )
+  }
+}
+
+export const config = {
+  api: {
+    bodyParser: false,
+  },
+}