Added a prompt injection detection (#857)

Co-authored-by: Thorsten Sommer <SommerEngineering@users.noreply.github.com>

app/MindWork AI Studio/Tools/Security/PromptInjectionSourceKind.cs

@@ -0,0 +1,10 @@
+namespace AIStudio.Tools.Security;
+
+public enum PromptInjectionSourceKind
+{
+    UNKNOWN = 0,
+    WEB_CONTENT,
+    FILE_CONTENT,
+    CHAT_ATTACHMENT,
+    RETRIEVAL_CONTEXT,
+}