chore: remove iFlow-related modules and dependencies

- Deleted `iflow` provider implementation, including thinking configuration (`apply.go`) and authentication modules.
- Removed iFlow-specific tests, executors, and helpers across SDK and internal components.
- Updated all references to exclude iFlow functionality.

internal/cmd/auth_manager.go

@@ -6,7 +6,7 @@ import (
 
 // newAuthManager creates a new authentication manager instance with all supported
 // authenticators and a file-based token store. It initializes authenticators for
-// Gemini, Codex, Claude, iFlow, Antigravity, and Kimi providers.
+// Gemini, Codex, Claude, Antigravity, and Kimi providers.
 //
 // Returns:
 //   - *sdkAuth.Manager: A configured authentication manager instance
@@ -16,7 +16,6 @@ func newAuthManager() *sdkAuth.Manager {
 		sdkAuth.NewGeminiAuthenticator(),
 		sdkAuth.NewCodexAuthenticator(),
 		sdkAuth.NewClaudeAuthenticator(),
-		sdkAuth.NewIFlowAuthenticator(),
 		sdkAuth.NewAntigravityAuthenticator(),
 		sdkAuth.NewKimiAuthenticator(),
 	)

internal/cmd/iflow_cookie.go

@@ -1,98 +0,0 @@
-package cmd
-
-import (
-	"bufio"
-	"context"
-	"fmt"
-	"os"
-	"path/filepath"
-	"strings"
-	"time"
-
-	"github.com/router-for-me/CLIProxyAPI/v6/internal/auth/iflow"
-	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
-)
-
-// DoIFlowCookieAuth performs the iFlow cookie-based authentication.
-func DoIFlowCookieAuth(cfg *config.Config, options *LoginOptions) {
-	if options == nil {
-		options = &LoginOptions{}
-	}
-
-	promptFn := options.Prompt
-	if promptFn == nil {
-		reader := bufio.NewReader(os.Stdin)
-		promptFn = func(prompt string) (string, error) {
-			fmt.Print(prompt)
-			value, err := reader.ReadString('\n')
-			if err != nil {
-				return "", err
-			}
-			return strings.TrimSpace(value), nil
-		}
-	}
-
-	// Prompt user for cookie
-	cookie, err := promptForCookie(promptFn)
-	if err != nil {
-		fmt.Printf("Failed to get cookie: %v\n", err)
-		return
-	}
-
-	// Check for duplicate BXAuth before authentication
-	bxAuth := iflow.ExtractBXAuth(cookie)
-	if existingFile, err := iflow.CheckDuplicateBXAuth(cfg.AuthDir, bxAuth); err != nil {
-		fmt.Printf("Failed to check duplicate: %v\n", err)
-		return
-	} else if existingFile != "" {
-		fmt.Printf("Duplicate BXAuth found, authentication already exists: %s\n", filepath.Base(existingFile))
-		return
-	}
-
-	// Authenticate with cookie
-	auth := iflow.NewIFlowAuth(cfg)
-	ctx := context.Background()
-
-	tokenData, err := auth.AuthenticateWithCookie(ctx, cookie)
-	if err != nil {
-		fmt.Printf("iFlow cookie authentication failed: %v\n", err)
-		return
-	}
-
-	// Create token storage
-	tokenStorage := auth.CreateCookieTokenStorage(tokenData)
-
-	// Get auth file path using email in filename
-	authFilePath := getAuthFilePath(cfg, "iflow", tokenData.Email)
-
-	// Save token to file
-	if err := tokenStorage.SaveTokenToFile(authFilePath); err != nil {
-		fmt.Printf("Failed to save authentication: %v\n", err)
-		return
-	}
-
-	fmt.Printf("Authentication successful! API key: %s\n", tokenData.APIKey)
-	fmt.Printf("Expires at: %s\n", tokenData.Expire)
-	fmt.Printf("Authentication saved to: %s\n", authFilePath)
-}
-
-// promptForCookie prompts the user to enter their iFlow cookie
-func promptForCookie(promptFn func(string) (string, error)) (string, error) {
-	line, err := promptFn("Enter iFlow Cookie (from browser cookies): ")
-	if err != nil {
-		return "", fmt.Errorf("failed to read cookie: %w", err)
-	}
-
-	cookie, err := iflow.NormalizeCookie(line)
-	if err != nil {
-		return "", err
-	}
-
-	return cookie, nil
-}
-
-// getAuthFilePath returns the auth file path for the given provider and email
-func getAuthFilePath(cfg *config.Config, provider, email string) string {
-	fileName := iflow.SanitizeIFlowFileName(email)
-	return fmt.Sprintf("%s/%s-%s-%d.json", cfg.AuthDir, provider, fileName, time.Now().Unix())
-}

internal/cmd/iflow_login.go

@@ -1,48 +0,0 @@
-package cmd
-
-import (
-	"context"
-	"errors"
-	"fmt"
-
-	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
-	sdkAuth "github.com/router-for-me/CLIProxyAPI/v6/sdk/auth"
-	log "github.com/sirupsen/logrus"
-)
-
-// DoIFlowLogin performs the iFlow OAuth login via the shared authentication manager.
-func DoIFlowLogin(cfg *config.Config, options *LoginOptions) {
-	if options == nil {
-		options = &LoginOptions{}
-	}
-
-	manager := newAuthManager()
-
-	promptFn := options.Prompt
-	if promptFn == nil {
-		promptFn = defaultProjectPrompt()
-	}
-
-	authOpts := &sdkAuth.LoginOptions{
-		NoBrowser:    options.NoBrowser,
-		CallbackPort: options.CallbackPort,
-		Metadata:     map[string]string{},
-		Prompt:       promptFn,
-	}
-
-	_, savedPath, err := manager.Login(context.Background(), "iflow", cfg, authOpts)
-	if err != nil {
-		if emailErr, ok := errors.AsType[*sdkAuth.EmailRequiredError](err); ok {
-			log.Error(emailErr.Error())
-			return
-		}
-		fmt.Printf("iFlow authentication failed: %v\n", err)
-		return
-	}
-
-	if savedPath != "" {
-		fmt.Printf("Authentication saved to %s\n", savedPath)
-	}
-
-	fmt.Println("iFlow authentication successful!")
-}