Remove 'required' modifier from AdditionalApiParameters and initialize with an empty dictionary

app/MindWork AI Studio/Provider/Anthropic/ChatRequest.cs

@@ -19,6 +19,7 @@ public readonly record struct ChatRequest(
     string System
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/Fireworks/ChatRequest.cs

@@ -14,6 +14,7 @@ public readonly record struct ChatRequest(
     bool Stream
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/Google/ChatRequest.cs

@@ -15,6 +15,7 @@ public readonly record struct ChatRequest(
     bool Stream
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/Groq/ChatRequest.cs

@@ -17,6 +17,7 @@ public readonly record struct ChatRequest(
     int Seed
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/Mistral/ChatRequest.cs

@@ -18,6 +18,7 @@ public readonly record struct ChatRequest(
     bool SafePrompt = false
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/OpenAI/ChatCompletionAPIRequest.cs

@@ -18,6 +18,7 @@ public record ChatCompletionAPIRequest(
     {
     }
     
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/OpenAI/ResponsesAPIRequest.cs

@@ -21,6 +21,7 @@ public record ResponsesAPIRequest(
     {
     }
     
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }

app/MindWork AI Studio/Provider/SelfHosted/ChatRequest.cs

@@ -14,6 +14,7 @@ public readonly record struct ChatRequest(
     bool Stream
 )
 {
+    // Attention: The "required" modifier is not supported for [JsonExtensionData].
     [JsonExtensionData]
-    public required IDictionary<string, object> AdditionalApiParameters { get; init; }
+    public IDictionary<string, object> AdditionalApiParameters { get; init; } = new Dictionary<string, object>();
 }