fix: aws claude

relay/channel/aws/dto.go

@@ -7,9 +7,9 @@ import (
 type AwsClaudeRequest struct {
 	// AnthropicVersion should be "bedrock-2023-05-31"
 	AnthropicVersion string                 `json:"anthropic_version"`
-	System           string                 `json:"system"`
+	System           string                 `json:"system,omitempty"`
 	Messages         []claude.ClaudeMessage `json:"messages"`
-	MaxTokens        int                    `json:"max_tokens,omitempty"`
+	MaxTokens        uint                   `json:"max_tokens,omitempty"`
 	Temperature      float64                `json:"temperature,omitempty"`
 	TopP             float64                `json:"top_p,omitempty"`
 	TopK             int                    `json:"top_k,omitempty"`
@@ -17,3 +17,18 @@ type AwsClaudeRequest struct {
 	Tools            []claude.Tool          `json:"tools,omitempty"`
 	ToolChoice       any                    `json:"tool_choice,omitempty"`
 }
+
+func copyRequest(req *claude.ClaudeRequest) *AwsClaudeRequest {
+	return &AwsClaudeRequest{
+		AnthropicVersion: "bedrock-2023-05-31",
+		System:           req.System,
+		Messages:         req.Messages,
+		MaxTokens:        req.MaxTokens,
+		Temperature:      req.Temperature,
+		TopP:             req.TopP,
+		TopK:             req.TopK,
+		StopSequences:    req.StopSequences,
+		Tools:            req.Tools,
+		ToolChoice:       req.ToolChoice,
+	}
+}