Verbesserung Auth, Webhook-Handling & Codacy-Integration

- BasicAuthenticationAttribute: AllowAnonymous-Handling ergänzt, Fehlerbehandlung für ungültige Header verbessert, WWW-Authenticate-Header korrigiert, Credential-Handling robuster gestaltet.
- WiseController: Webhook akzeptiert jetzt JSON und Text, asynchrone Verarbeitung, robustere Deserialisierung, <AllowAnonymous> auf Klassenebene.
- WiseWebhookExampleProcessor: OpenAPI/Swagger-Doku erweitert (application/json & text/plain, Beispiele, flexiblere Schemas).
- SwaggerConfig: Unsichtbares Zeichen entfernt.
- .gitignore: Codacy-spezifische Anweisungen ausgeschlossen.
- codacy.instructions.md: Neue Datei mit KI-Verhaltensregeln für Codacy-Analysen hinzugefügt.

VERAG_REST_SERVER/App_Start/WiseWebhookExampleProcessor.vb

@@ -1,22 +1,39 @@
+Imports NSwag
 Imports NSwag.Generation.Processors
 Imports NSwag.Generation.Processors.Contexts
 Imports NJsonSchema
 
-Public Class WiseWebhookExampleProcessor
-    Implements IOperationProcessor
+    Public Class WiseWebhookExampleProcessor
+        Implements IOperationProcessor
 
-    Public Function Process(context As OperationProcessorContext) As Boolean Implements IOperationProcessor.Process
+        Public Function Process(context As OperationProcessorContext) As Boolean Implements IOperationProcessor.Process
         If context.ControllerType.Name = "WiseController" AndAlso context.MethodInfo.Name = "Webhook" Then
             Dim operation = context.OperationDescription.Operation
-            If operation.RequestBody IsNot Nothing AndAlso operation.RequestBody.Content.ContainsKey("application/json") Then
-                Dim content = operation.RequestBody.Content("application/json")
-                content.Example = New With {
+            If operation.RequestBody Is Nothing Then
+                operation.RequestBody = New OpenApiRequestBody()
+                operation.RequestBody.IsRequired = False
+            End If
+
+            If Not operation.RequestBody.Content.ContainsKey("application/json") Then
+                operation.RequestBody.Content("application/json") = New OpenApiMediaType() With {
+                        .Schema = JsonSchema.CreateAnySchema()
+                    }
+            End If
+
+            If Not operation.RequestBody.Content.ContainsKey("text/plain") Then
+                operation.RequestBody.Content("text/plain") = New OpenApiMediaType() With {
+                        .Schema = JsonSchema.CreateAnySchema()
+                    }
+            End If
+
+            Dim jsonContent = operation.RequestBody.Content("application/json")
+                jsonContent.Example = New With {
                     .event_type = "balance.credit",
                     .data = New With {
                         .id = 123456789,
                         .balance_id = 99887766,
                         .amount = New With {
-                            .value = 1500.00,
+                            .value = 1500.0,
                             .currency = "EUR"
                         },
                         .occurred_at = "2025-12-06T10:15:30Z",
@@ -24,8 +41,10 @@ Public Class WiseWebhookExampleProcessor
                         .sender_name = "ACME GmbH"
                     }
                 }
+
+                Dim textContent = operation.RequestBody.Content("text/plain")
+                textContent.Example = "hello world"
             End If
-        End If
-        Return True
-    End Function
-End Class
+            Return True
+        End Function
+    End Class