Dont display <think> tags (#496)

Author: peerschuett

app/MindWork AI Studio/Chat/ContentBlockComponent.razor

@@ -67,12 +67,12 @@
                             @if (this.Content.IsStreaming)
                             {
                                 <MudText Typo="Typo.body1" Style="white-space: pre-wrap;">
-                                    @textContent.Text
+                                    @textContent.Text.RemoveThinkTags()
                                 </MudText>
                             }
                             else
                             {
-                                <MudMarkdown Value="@textContent.Text" OverrideHeaderTypo="@Markdown.OverrideHeaderTypo" CodeBlockTheme="@this.CodeColorPalette"/>
+                                <MudMarkdown Value="@textContent.Text.RemoveThinkTags().Trim()" OverrideHeaderTypo="@Markdown.OverrideHeaderTypo" CodeBlockTheme="@this.CodeColorPalette"/>
                             }
                         }
                     }

app/MindWork AI Studio/Chat/ContentText.cs

@@ -119,6 +119,8 @@ await Task.Run(async () =>
             this.InitialRemoteWait = false;
             this.IsStreaming = false;
         }, token);
+
+        this.Text = this.Text.RemoveThinkTags().Trim();
 
         // Inform the UI that the streaming is done:
         await this.StreamingDone();

app/MindWork AI Studio/Chat/StringExtension.cs

@@ -0,0 +1,18 @@
+namespace AIStudio.Chat;
+
+public static class StringExtensions
+{
+    public static string RemoveThinkTags(this string input)
+    {
+        const string OPEN_TAG = "<think>";
+        const string CLOSE_TAG = "</think>";
+        if (string.IsNullOrEmpty(input) || !input.StartsWith(OPEN_TAG))
+            return input;
+        
+        var endIndex = input.IndexOf(CLOSE_TAG, StringComparison.Ordinal);
+        if (endIndex == -1)
+            return string.Empty;
+        
+        return input[(endIndex + CLOSE_TAG.Length)..];
+    }
+}

app/MindWork AI Studio/wwwroot/changelog/v0.9.48.md

@@ -1,4 +1,5 @@
 # v0.9.48, build 223 (2025-06-xx xx:xx UTC)
 - Improved German translation.
 - Improved the confirmation dialog for longer texts.
-- Improved how configurations are applied in organizations and made the process more robust.
+- Improved how configurations are applied in organizations and made the process more robust.
+- Removed `<think>` tags from streaming and final text output because of reasoning models.