chore(logging): add debug logs for executor Refresh methods

- Introduced `logrus` for structured debugging across all executors.
- Added debug log messages in `Refresh` methods for better traceability.
- Updated `Manager` to log additional details during refresh checks.

internal/runtime/executor/claude_executor.go

@@ -15,6 +15,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/sjson"
 )
 
@@ -142,6 +143,7 @@ func (e *ClaudeExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.A
 }
 
 func (e *ClaudeExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("claude executor: refresh called")
 	if auth == nil {
 		return nil, fmt.Errorf("claude executor: auth is nil")
 	}

internal/runtime/executor/codex_executor.go

@@ -14,6 +14,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/sjson"
 )
 
@@ -188,6 +189,7 @@ func (e *CodexExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.Au
 }
 
 func (e *CodexExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("codex executor: refresh called")
 	if auth == nil {
 		return nil, statusErr{code: 500, msg: "codex executor: auth is nil"}
 	}

internal/runtime/executor/gemini_cli_executor.go

@@ -255,6 +255,7 @@ func (e *GeminiCLIExecutor) ExecuteStream(ctx context.Context, auth *cliproxyaut
 }
 
 func (e *GeminiCLIExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	// log.Debugf("gemini cli executor: refresh called")
 	_ = ctx
 	return auth, nil
 }

internal/runtime/executor/gemini_executor.go

@@ -14,6 +14,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 	"golang.org/x/oauth2"
 	"golang.org/x/oauth2/google"
 )
@@ -165,6 +166,7 @@ func (e *GeminiExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.A
 }
 
 func (e *GeminiExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("gemini executor: refresh called")
 	// OAuth bearer token refresh for official Gemini API.
 	if auth == nil {
 		return nil, fmt.Errorf("gemini executor: auth is nil")

internal/runtime/executor/gemini_web_executor.go

@@ -13,6 +13,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 )
 
 type GeminiWebExecutor struct {
@@ -105,6 +106,7 @@ func (e *GeminiWebExecutor) ExecuteStream(ctx context.Context, auth *cliproxyaut
 }
 
 func (e *GeminiWebExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("gemini web executor: refresh called")
 	state, err := e.stateFor(auth)
 	if err != nil {
 		return nil, err

internal/runtime/executor/openai_compat_executor.go

@@ -13,6 +13,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 )
 
 // OpenAICompatExecutor implements a stateless executor for OpenAI-compatible providers.
@@ -147,6 +148,7 @@ func (e *OpenAICompatExecutor) ExecuteStream(ctx context.Context, auth *cliproxy
 
 // Refresh is a no-op for API-key based compatibility providers.
 func (e *OpenAICompatExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("openai compat executor: refresh called")
 	_ = ctx
 	return auth, nil
 }

internal/runtime/executor/qwen_executor.go

@@ -14,6 +14,7 @@ import (
 	cliproxyauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
 	cliproxyexecutor "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/executor"
 	sdktranslator "github.com/router-for-me/CLIProxyAPI/v6/sdk/translator"
+	log "github.com/sirupsen/logrus"
 	"github.com/tidwall/gjson"
 	"github.com/tidwall/sjson"
 )
@@ -144,6 +145,7 @@ func (e *QwenExecutor) ExecuteStream(ctx context.Context, auth *cliproxyauth.Aut
 }
 
 func (e *QwenExecutor) Refresh(ctx context.Context, auth *cliproxyauth.Auth) (*cliproxyauth.Auth, error) {
+	log.Debugf("qwen executor: refresh called")
 	if auth == nil {
 		return nil, fmt.Errorf("qwen executor: auth is nil")
 	}