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.

sdk/cliproxy/auth/conductor_overrides_test.go

@@ -69,7 +69,7 @@ func TestManager_ShouldRetryAfterError_UsesOAuthModelAliasForCooldown(t *testing
 	m := NewManager(nil, nil, nil)
 	m.SetRetryConfig(3, 30*time.Second, 0)
 	m.SetOAuthModelAlias(map[string][]internalconfig.OAuthModelAlias{
-		"iflow": {
+		"kimi": {
 			{Name: "deepseek-v3.1", Alias: "pool-model"},
 		},
 	})
@@ -80,7 +80,7 @@ func TestManager_ShouldRetryAfterError_UsesOAuthModelAliasForCooldown(t *testing
 
 	auth := &Auth{
 		ID:       "auth-1",
-		Provider: "iflow",
+		Provider: "kimi",
 		ModelStates: map[string]*ModelState{
 			upstreamModel: {
 				Unavailable:    true,
@@ -99,7 +99,7 @@ func TestManager_ShouldRetryAfterError_UsesOAuthModelAliasForCooldown(t *testing
 	}
 
 	_, _, maxWait := m.retrySettings()
-	wait, shouldRetry := m.shouldRetryAfterError(&Error{HTTPStatus: 429, Message: "quota"}, 0, []string{"iflow"}, routeModel, maxWait)
+	wait, shouldRetry := m.shouldRetryAfterError(&Error{HTTPStatus: 429, Message: "quota"}, 0, []string{"kimi"}, routeModel, maxWait)
 	if !shouldRetry {
 		t.Fatalf("expected shouldRetry=true, got false (wait=%v)", wait)
 	}

sdk/cliproxy/auth/oauth_model_alias.go

@@ -265,7 +265,7 @@ func modelAliasChannel(auth *Auth) string {
 // and auth kind. Returns empty string if the provider/authKind combination doesn't support
 // OAuth model alias (e.g., API key authentication).
 //
-// Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, iflow, kimi.
+// Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, kimi.
 func OAuthModelAliasChannel(provider, authKind string) string {
 	provider = strings.ToLower(strings.TrimSpace(provider))
 	authKind = strings.ToLower(strings.TrimSpace(authKind))
@@ -289,7 +289,7 @@ func OAuthModelAliasChannel(provider, authKind string) string {
 			return ""
 		}
 		return "codex"
-	case "gemini-cli", "aistudio", "antigravity", "iflow", "kimi":
+	case "gemini-cli", "aistudio", "antigravity", "kimi":
 		return provider
 	default:
 		return ""

sdk/cliproxy/auth/oauth_model_alias_test.go

@@ -157,8 +157,6 @@ func createAuthForChannel(channel string) *Auth {
 		return &Auth{Provider: "aistudio"}
 	case "antigravity":
 		return &Auth{Provider: "antigravity"}
-	case "iflow":
-		return &Auth{Provider: "iflow"}
 	case "kimi":
 		return &Auth{Provider: "kimi"}
 	default:

sdk/cliproxy/auth/types.go

@@ -406,18 +406,6 @@ func (a *Auth) AccountInfo() (string, string) {
 		}
 	}
 
-	// For iFlow provider, prioritize OAuth type if email is present
-	if strings.ToLower(a.Provider) == "iflow" {
-		if a.Metadata != nil {
-			if email, ok := a.Metadata["email"].(string); ok {
-				email = strings.TrimSpace(email)
-				if email != "" {
-					return "oauth", email
-				}
-			}
-		}
-	}
-
 	// Check metadata for email first (OAuth-style auth)
 	if a.Metadata != nil {
 		if v, ok := a.Metadata["email"].(string); ok {

sdk/cliproxy/service.go

@@ -392,7 +392,7 @@ func (s *Service) ensureExecutorsForAuthWithMode(a *coreauth.Auth, forceReplace
 	}
 	// Skip disabled auth entries when (re)binding executors.
 	// Disabled auths can linger during config reloads (e.g., removed OpenAI-compat entries)
-	// and must not override active provider executors (such as iFlow OAuth accounts).
+	// and must not override active provider executors.
 	if a.Disabled {
 		return
 	}
@@ -422,8 +422,6 @@ func (s *Service) ensureExecutorsForAuthWithMode(a *coreauth.Auth, forceReplace
 		s.coreManager.RegisterExecutor(executor.NewAntigravityExecutor(s.cfg))
 	case "claude":
 		s.coreManager.RegisterExecutor(executor.NewClaudeExecutor(s.cfg))
-	case "iflow":
-		s.coreManager.RegisterExecutor(executor.NewIFlowExecutor(s.cfg))
 	case "kimi":
 		s.coreManager.RegisterExecutor(executor.NewKimiExecutor(s.cfg))
 	default:
@@ -926,9 +924,6 @@ func (s *Service) registerModelsForAuth(a *coreauth.Auth) {
 			}
 		}
 		models = applyExcludedModels(models, excluded)
-	case "iflow":
-		models = registry.GetIFlowModels()
-		models = applyExcludedModels(models, excluded)
 	case "kimi":
 		models = registry.GetKimiModels()
 		models = applyExcludedModels(models, excluded)