Improved internal plugin maintenance (#436)

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

@@ -16,7 +16,27 @@ public static partial class PluginFactory
             return;
         }
         
+        // A plugin update might remove some resources. Even worse, a plugin
+        // might have changed its name, etc. Thus, we delete the internal
+        // plugin directories before copying the new resources:
+        LOG.LogInformation("Try to delete the internal plugins directory for maintenance.");
+        if (Directory.Exists(INTERNAL_PLUGINS_ROOT))
+        {
+            try
+            {
+                Directory.Delete(INTERNAL_PLUGINS_ROOT, true);
+                LOG.LogInformation("Successfully deleted the internal plugins directory for maintenance.");
+            }
+            catch (Exception e)
+            {
+                LOG.LogError($"Could not delete the internal plugins directory for maintenance: {INTERNAL_PLUGINS_ROOT}. Error: {e}");
+            }
+        }
+        
         LOG.LogInformation("Start ensuring internal plugins.");
+        if(!Directory.Exists(INTERNAL_PLUGINS_ROOT))
+            Directory.CreateDirectory(INTERNAL_PLUGINS_ROOT);
+        
         foreach (var plugin in Enum.GetValues<InternalPlugin>())
         {
             LOG.LogInformation($"Ensure plugin: {plugin}");

app/MindWork AI Studio/wwwroot/changelog/v0.9.42.md

@@ -1,5 +1,6 @@
 # v0.9.42, build 217 (2025-05-xx xx:xx UTC)
 - Improved the model selection for OpenAI by removing all `o1-pro` models. These models cannot be used right now, since OpenAI introduced a new API, which is not yet supported by MindWork AI Studio.
+- Improved the internal plugin maintenance so that removed resources are now removed from the file system.
 - Fixed an issue where empty lines in source code were being ignored by the Markdown renderer. Thanks My Nihongo for fixing this bug in the `MudBlazor.Markdown` repository.
 - Fixed the localization assistant not being able to load the localization file when used in the release app.
 - Upgraded .NET dependencies.