refactor: Enhance logging in QuickImportProxy for better debugging

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

@@ -2,9 +2,12 @@ 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);
 
     if (!input || typeof input !== 'string') {
+      console.log('[QuickImportProxy] Validering misslyckades');
       return NextResponse.json(
         { error: 'Du måste ange en URL eller filsökväg' },
         { status: 400 }
@@ -13,14 +16,20 @@ export async function POST(request: NextRequest) {
 
     // Anropa backend
     const backendUrl = process.env.NEXT_PUBLIC_API_URL || 'http://localhost: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() }),
     });
 
+    console.log('[QuickImportProxy] Backend svar status:', response.status);
+
     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 }
@@ -28,9 +37,10 @@ export async function POST(request: NextRequest) {
     }
 
     const data = await response.json();
+    console.log('[QuickImportProxy] Framgång! Markdown längd:', data.markdown?.length);
     return NextResponse.json(data);
   } catch (error) {
-    console.error('Quick import error:', error);
+    console.error('[QuickImportProxy] EXCEPTION:', error);
     return NextResponse.json(
       { error: 'Serverfelet vid import. Försök igen senare.' },
       { status: 500 }