feat: tilføj rigtig PDF download via WeasyPrint

- /download route genererer PDF server-side
- PDF ser ud som hjemmesiden (ikke browser-print)
- Kompakt print-CSS til 1 A4-side
- Knap downloader direkte i stedet for at åbne print-dialog

app.py

@@ -1,6 +1,8 @@
-from flask import Flask, render_template, jsonify
+from flask import Flask, render_template, jsonify, send_file, request
+from weasyprint import HTML
 from datetime import datetime, timezone
 import os
+import io
 
 app = Flask(__name__)
 
@@ -11,6 +13,17 @@ GIT_COMMIT = os.getenv('GIT_COMMIT', 'unknown')
 def index():
     return render_template('index.html')
 
+@app.route('/download')
+def download_pdf():
+    html = render_template('index.html', pdf_mode=True)
+    pdf = HTML(string=html, base_url=request.host_url).write_pdf()
+    return send_file(
+        io.BytesIO(pdf),
+        mimetype='application/pdf',
+        as_attachment=True,
+        download_name='Erika_Nielsen_CV.pdf'
+    )
+
 @app.route('/health')
 def health():
     return jsonify({