PWA-Unterstützung hinzugefügt: manifest.webmanifest, Service Worker, Installierbarkeit auf Homescreen/Desktop

app.py

@@ -1,7 +1,7 @@
 from pathlib import Path
 import json
 from typing import Tuple, Dict, List
-from flask import Flask, render_template, request
+from flask import Flask, render_template, request, send_from_directory
 
 app = Flask(__name__)
 
@@ -77,5 +77,16 @@ def index():
     )
 
 
+@app.route('/manifest.webmanifest')
+def manifest_file():
+    return send_from_directory(Path(__file__).parent / 'static', 'manifest.webmanifest', mimetype='application/manifest+json')
+
+
+@app.route('/sw.js')
+def service_worker():
+    # Service Worker muss auf Top-Level liegen
+    return send_from_directory(Path(__file__).parent / 'static', 'sw.js', mimetype='application/javascript')
+
+
 if __name__ == "__main__":
     app.run(debug=True)