Added plugin hot reloading (#377)

app/MindWork AI Studio/Tools/PluginSystem/PluginFactory.cs

@@ -16,6 +16,8 @@ public static partial class PluginFactory
     private static readonly string PLUGINS_ROOT = Path.Join(DATA_DIR, "plugins");
     
     private static readonly string INTERNAL_PLUGINS_ROOT = Path.Join(PLUGINS_ROOT, ".internal");
+    
+    private static readonly FileSystemWatcher HOT_RELOAD_WATCHER = new(PLUGINS_ROOT);
 
     private static readonly List<IPluginMetadata> AVAILABLE_PLUGINS = [];
     
@@ -45,6 +47,8 @@ public static partial class PluginFactory
             return;
         }
         
+        AVAILABLE_PLUGINS.Clear();
+        
         //
         // The easiest way to load all plugins is to find all `plugin.lua` files and load them.
         // By convention, each plugin is enforced to have a `plugin.lua` file.
@@ -136,4 +140,9 @@ public static partial class PluginFactory
             _ => new NoPlugin("This plugin type is not supported yet. Please try again with a future version of AI Studio.")
         };
     }
+    
+    public static void Dispose()
+    {
+        HOT_RELOAD_WATCHER.Dispose();
+    }
 }