feat: introduce custom provider example and remove redundant debug logs

- Added `examples/custom-provider/main.go` showcasing custom executor and translator integration using the SDK.
- Removed redundant debug logs from translator modules to enhance code cleanliness.
- Updated SDK documentation with new usage and advanced examples.
- Expanded the management API with new endpoints, including request logging and GPT-5 Codex features.

internal/translator/gemini-cli/claude/gemini-cli_claude_request.go

@@ -12,7 +12,6 @@ import (
 
 	client "github.com/router-for-me/CLIProxyAPI/v6/internal/interfaces"
 	"github.com/router-for-me/CLIProxyAPI/v6/internal/util"
-	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
 )
@@ -36,7 +35,6 @@ import (
 // Returns:
 //   - []byte: The transformed request data in Gemini CLI API format
 func ConvertClaudeRequestToCLI(modelName string, inputRawJSON []byte, _ bool) []byte {
-	log.Debug("ConvertClaudeRequestToCLI")
 	rawJSON := bytes.Clone(inputRawJSON)
 	var pathsToDelete []string
 	root := gjson.ParseBytes(rawJSON)

internal/translator/gemini-cli/claude/gemini-cli_claude_response.go

@@ -12,7 +12,6 @@ import (
 	"fmt"
 	"time"
 
-	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
 )
@@ -43,7 +42,6 @@ type Params struct {
 // Returns:
 //   - []string: A slice of strings, each containing a Claude Code-compatible JSON response
 func ConvertGeminiCLIResponseToClaude(_ context.Context, _ string, originalRequestRawJSON, requestRawJSON, rawJSON []byte, param *any) []string {
-	log.Debug("ConvertGeminiCLIResponseToClaude")
 	if *param == nil {
 		*param = &Params{
 			HasFirstResponse: false,
@@ -254,6 +252,5 @@ func ConvertGeminiCLIResponseToClaude(_ context.Context, _ string, originalReque
 // Returns:
 //   - string: A Claude-compatible JSON response.
 func ConvertGeminiCLIResponseToClaudeNonStream(_ context.Context, _ string, originalRequestRawJSON, requestRawJSON, _ []byte, _ *any) string {
-	log.Debug("ConvertGeminiCLIResponseToClaudeNonStream")
 	return ""
 }