feat: Implement PDF recipe parser and quick import service for file and URL inputs

frontend/app/api/quick-import-proxy/route.ts

@@ -2,48 +2,32 @@ import { NextRequest, NextResponse } from 'next/server';
 
 export async function POST(request: NextRequest) {
   try {
-    console.log('[QuickImportProxy] Mottog POST-anrop');
-    const { input } = await request.json();
-    console.log('[QuickImportProxy] Input från request:', input);
+    const contentType = request.headers.get('content-type') ?? '';
+    const isMultipart = contentType.includes('multipart/form-data');
+    const backendUrl = process.env.BACKEND_URL || process.env.NEXT_PUBLIC_API_URL || 'http://recipe-api:8080';
 
-    if (!input || typeof input !== 'string') {
-      console.log('[QuickImportProxy] Validering misslyckades');
-      return NextResponse.json(
-        { error: 'Du måste ange en URL eller filsökväg' },
-        { status: 400 }
-      );
-    }
-
-    // Anropa backend
-    const backendUrl = process.env.NEXT_PUBLIC_API_URL || 'http://recipe-api:8080';
-    console.log('[QuickImportProxy] Anropar backend på:', backendUrl + '/api/quick-import');
-    
     const response = await fetch(`${backendUrl}/api/quick-import`, {
       method: 'POST',
-      headers: { 'Content-Type': 'application/json' },
-      body: JSON.stringify({ input: input.trim() }),
+      body: isMultipart
+        ? await request.formData()
+        : JSON.stringify(await request.json()),
+      headers: isMultipart ? undefined : { 'Content-Type': 'application/json' },
+      cache: 'no-store',
     });
 
-    console.log('[QuickImportProxy] Backend svar status:', response.status);
+    const text = await response.text();
 
-    if (!response.ok) {
-      console.log('[QuickImportProxy] Backend returnerade error');
-      const errorData = await response.json().catch(() => ({}));
-      console.log('[QuickImportProxy] Error data:', errorData);
-      return NextResponse.json(
-        { error: errorData.message || 'Importen misslyckades' },
-        { status: response.status }
-      );
-    }
-
-    const data = await response.json();
-    console.log('[QuickImportProxy] Framgång! Markdown längd:', data.markdown?.length);
-    return NextResponse.json(data);
+    return new NextResponse(text, {
+      status: response.status,
+      headers: {
+        'Content-Type': response.headers.get('content-type') ?? 'application/json',
+      },
+    });
   } catch (error) {
     console.error('[QuickImportProxy] EXCEPTION:', error);
     return NextResponse.json(
-      { error: 'Serverfelet vid import. Försök igen senare.' },
-      { status: 500 }
+      { message: 'Kunde inte nå importtjänsten.' },
+      { status: 503 },
     );
   }
 }