refactor(translator, executor): remove redundant bytes.Clone calls for improved performance

- Replaced all instances of `bytes.Clone` with direct references to enhance efficiency.
- Simplified payload handling across executors and translators by eliminating unnecessary data duplication.

internal/translator/openai/claude/openai_claude_request.go

@@ -6,7 +6,6 @@
 package claude
 
 import (
-	"bytes"
 	"strings"
 
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/thinking"
@@ -18,7 +17,7 @@ import (
 // It extracts the model name, system instruction, message contents, and tool declarations
 // from the raw JSON request and returns them in the format expected by the OpenAI API.
 func ConvertClaudeRequestToOpenAI(modelName string, inputRawJSON []byte, stream bool) []byte {
-	rawJSON := bytes.Clone(inputRawJSON)
+	rawJSON := inputRawJSON
 	// Base OpenAI Chat Completions API template
 	out := `{"model":"","messages":[]}`
 

internal/translator/openai/gemini-cli/openai_gemini_request.go

@@ -6,8 +6,6 @@
 package geminiCLI
 
 import (
-	"bytes"
-
 	. "github.com/router-for-me/CLIProxyAPI/v6/internal/translator/openai/gemini"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
@@ -17,7 +15,7 @@ import (
 // It extracts the model name, generation config, message contents, and tool declarations
 // from the raw JSON request and returns them in the format expected by the OpenAI API.
 func ConvertGeminiCLIRequestToOpenAI(modelName string, inputRawJSON []byte, stream bool) []byte {
-	rawJSON := bytes.Clone(inputRawJSON)
+	rawJSON := inputRawJSON
 	rawJSON = []byte(gjson.GetBytes(rawJSON, "request").Raw)
 	rawJSON, _ = sjson.SetBytes(rawJSON, "model", modelName)
 	if gjson.GetBytes(rawJSON, "systemInstruction").Exists() {

internal/translator/openai/gemini/openai_gemini_request.go

@@ -6,7 +6,6 @@
 package gemini
 
 import (
-	"bytes"
 	"crypto/rand"
 	"fmt"
 	"math/big"
@@ -21,7 +20,7 @@ import (
 // It extracts the model name, generation config, message contents, and tool declarations
 // from the raw JSON request and returns them in the format expected by the OpenAI API.
 func ConvertGeminiRequestToOpenAI(modelName string, inputRawJSON []byte, stream bool) []byte {
-	rawJSON := bytes.Clone(inputRawJSON)
+	rawJSON := inputRawJSON
 	// Base OpenAI Chat Completions API template
 	out := `{"model":"","messages":[]}`
 

internal/translator/openai/openai/chat-completions/openai_openai_request.go

@@ -3,7 +3,6 @@
 package chat_completions
 
 import (
-	"bytes"
 	"github.com/tidwall/sjson"
 )
 
@@ -25,7 +24,7 @@ func ConvertOpenAIRequestToOpenAI(modelName string, inputRawJSON []byte, _ bool)
 		// If there's an error, return the original JSON or handle the error appropriately.
 		// For now, we'll return the original, but in a real scenario, logging or a more robust error
 		// handling mechanism would be needed.
-		return bytes.Clone(inputRawJSON)
+		return inputRawJSON
 	}
 	return updatedJSON
 }

internal/translator/openai/openai/responses/openai_openai-responses_request.go

@@ -1,7 +1,6 @@
 package responses
 
 import (
-	"bytes"
 	"strings"
 
 	"github.com/tidwall/gjson"
@@ -28,7 +27,7 @@ import (
 // Returns:
 //   - []byte: The transformed request data in OpenAI chat completions format
 func ConvertOpenAIResponsesRequestToOpenAIChatCompletions(modelName string, inputRawJSON []byte, stream bool) []byte {
-	rawJSON := bytes.Clone(inputRawJSON)
+	rawJSON := inputRawJSON
 	// Base OpenAI chat completions template with default values
 	out := `{"model":"","messages":[],"stream":false}`