Add mining mode selection (SHA256/Scrypt) via GUI

app.py

@@ -17,7 +17,14 @@ def index():
 @app.route('/settings')
 def settings():
     config = config_mgr.load_config()
-    return render_template('settings.html', config=config, active_page='settings')
+    
+    # Load mode
+    mode = 'sha256'
+    if os.path.exists('mining_mode.conf'):
+        with open('mining_mode.conf', 'r') as f:
+            mode = f.read().strip()
+            
+    return render_template('settings.html', config=config, active_page='settings', mode=mode)
 
 @app.route('/api/data')
 def api_data():
@@ -56,6 +63,14 @@ def save_settings():
     
     new_config = config_mgr.load_config() # Start with existing
     
+    # Save mode
+    mode = request.form.get('mining_mode', 'sha256')
+    try:
+        with open('mining_mode.conf', 'w') as f:
+            f.write(mode)
+    except Exception as e:
+        print(f"Error saving mode: {e}")
+    
     # Update simple fields
     new_config['gridseed-options'] = f"freq={request.form.get('freq', '850')}"