User management and module improvements

- Added daily_mirror module to permissions system
- Fixed user module management - updates now work correctly
- Implemented dashboard module filtering based on user permissions
- Fixed warehouse create_locations page (config parser and delete)
- Implemented POST-Redirect-GET pattern to prevent duplicate entries
- Added application license system with validation middleware
- Cleaned up debug logging code
- Improved user module selection with fetch API instead of form submit

py_app/app/warehouse.py

@@ -12,8 +12,10 @@ def get_db_connection():
     settings = {}
     with open(settings_file, 'r') as f:
         for line in f:
-            key, value = line.strip().split('=', 1)
-            settings[key] = value
+            line = line.strip()
+            if line and '=' in line and not line.startswith('#'):
+                key, value = line.split('=', 1)
+                settings[key] = value
     return mariadb.connect(
         user=settings['username'],
         password=settings['password'],
@@ -97,16 +99,22 @@ def delete_locations_by_ids(ids_str):
     return f"Deleted {deleted} location(s)."
 
 def create_locations_handler():
-    message = None
     if request.method == "POST":
         if request.form.get("delete_locations"):
             ids_str = request.form.get("delete_ids", "")
             message = delete_locations_by_ids(ids_str)
+            session['flash_message'] = message
         else:
             location_code = request.form.get("location_code")
             size = request.form.get("size")
             description = request.form.get("description")
             message = add_location(location_code, size, description)
+            session['flash_message'] = message
+        # Redirect to prevent form resubmission on page reload
+        return redirect(url_for('warehouse.create_locations'))
+    
+    # Get flash message from session if any
+    message = session.pop('flash_message', None)
     locations = get_locations()
     return render_template("create_locations.html", locations=locations, message=message)