chore: remove Qwen support from SDK and internal components

- Deleted `QwenAuthenticator`, internal `qwen_auth`, and `qwen_executor` implementations.
- Removed all Qwen-related OAuth flows, token handling, and execution logic.
- Cleaned up dependencies and references to Qwen across the codebase.

sdk/cliproxy/auth/conductor_overrides_test.go

@@ -69,18 +69,18 @@ func TestManager_ShouldRetryAfterError_UsesOAuthModelAliasForCooldown(t *testing
 	m := NewManager(nil, nil, nil)
 	m.SetRetryConfig(3, 30*time.Second, 0)
 	m.SetOAuthModelAlias(map[string][]internalconfig.OAuthModelAlias{
-		"qwen": {
-			{Name: "qwen3.6-plus", Alias: "coder-model"},
+		"iflow": {
+			{Name: "deepseek-v3.1", Alias: "pool-model"},
 		},
 	})
 
-	routeModel := "coder-model"
-	upstreamModel := "qwen3.6-plus"
+	routeModel := "pool-model"
+	upstreamModel := "deepseek-v3.1"
 	next := time.Now().Add(5 * time.Second)
 
 	auth := &Auth{
 		ID:       "auth-1",
-		Provider: "qwen",
+		Provider: "iflow",
 		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{"qwen"}, routeModel, maxWait)
+	wait, shouldRetry := m.shouldRetryAfterError(&Error{HTTPStatus: 429, Message: "quota"}, 0, []string{"iflow"}, 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, qwen, iflow, kimi.
+// Supported channels: gemini-cli, vertex, aistudio, antigravity, claude, codex, iflow, 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", "qwen", "iflow", "kimi":
+	case "gemini-cli", "aistudio", "antigravity", "iflow", "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 "qwen":
-		return &Auth{Provider: "qwen"}
 	case "iflow":
 		return &Auth{Provider: "iflow"}
 	case "kimi":

sdk/cliproxy/auth/openai_compat_pool_test.go

@@ -215,10 +215,10 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolStopsOnInvalidRequest(t *testi
 	invalidErr := &Error{HTTPStatus: http.StatusUnprocessableEntity, Message: "unprocessable entity"}
 	executor := &openAICompatPoolExecutor{
 		id:          "pool",
-		countErrors: map[string]error{"qwen3.5-plus": invalidErr},
+		countErrors: map[string]error{"deepseek-v3.1": invalidErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -227,18 +227,18 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolStopsOnInvalidRequest(t *testi
 		t.Fatalf("execute count error = %v, want %v", err, invalidErr)
 	}
 	got := executor.CountModels()
-	if len(got) != 1 || got[0] != "qwen3.5-plus" {
+	if len(got) != 1 || got[0] != "deepseek-v3.1" {
 		t.Fatalf("count calls = %v, want only first invalid model", got)
 	}
 }
 func TestResolveModelAliasPoolFromConfigModels(t *testing.T) {
 	models := []modelAliasEntry{
-		internalconfig.OpenAICompatibilityModel{Name: "qwen3.5-plus", Alias: "claude-opus-4.66"},
+		internalconfig.OpenAICompatibilityModel{Name: "deepseek-v3.1", Alias: "claude-opus-4.66"},
 		internalconfig.OpenAICompatibilityModel{Name: "glm-5", Alias: "claude-opus-4.66"},
 		internalconfig.OpenAICompatibilityModel{Name: "kimi-k2.5", Alias: "claude-opus-4.66"},
 	}
 	got := resolveModelAliasPoolFromConfigModels("claude-opus-4.66(8192)", models)
-	want := []string{"qwen3.5-plus(8192)", "glm-5(8192)", "kimi-k2.5(8192)"}
+	want := []string{"deepseek-v3.1(8192)", "glm-5(8192)", "kimi-k2.5(8192)"}
 	if len(got) != len(want) {
 		t.Fatalf("pool len = %d, want %d (%v)", len(got), len(want), got)
 	}
@@ -253,7 +253,7 @@ func TestManagerExecute_OpenAICompatAliasPoolRotatesWithinAuth(t *testing.T) {
 	alias := "claude-opus-4.66"
 	executor := &openAICompatPoolExecutor{id: "pool"}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -268,7 +268,7 @@ func TestManagerExecute_OpenAICompatAliasPoolRotatesWithinAuth(t *testing.T) {
 	}
 
 	got := executor.ExecuteModels()
-	want := []string{"qwen3.5-plus", "glm-5", "qwen3.5-plus"}
+	want := []string{"deepseek-v3.1", "glm-5", "deepseek-v3.1"}
 	if len(got) != len(want) {
 		t.Fatalf("execute calls = %v, want %v", got, want)
 	}
@@ -284,10 +284,10 @@ func TestManagerExecute_OpenAICompatAliasPoolStopsOnBadRequest(t *testing.T) {
 	invalidErr := &Error{HTTPStatus: http.StatusBadRequest, Message: "invalid_request_error: malformed payload"}
 	executor := &openAICompatPoolExecutor{
 		id:            "pool",
-		executeErrors: map[string]error{"qwen3.5-plus": invalidErr},
+		executeErrors: map[string]error{"deepseek-v3.1": invalidErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -296,7 +296,7 @@ func TestManagerExecute_OpenAICompatAliasPoolStopsOnBadRequest(t *testing.T) {
 		t.Fatalf("execute error = %v, want %v", err, invalidErr)
 	}
 	got := executor.ExecuteModels()
-	if len(got) != 1 || got[0] != "qwen3.5-plus" {
+	if len(got) != 1 || got[0] != "deepseek-v3.1" {
 		t.Fatalf("execute calls = %v, want only first invalid model", got)
 	}
 }
@@ -309,10 +309,10 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackOnModelSupportBadRequest(t
 	}
 	executor := &openAICompatPoolExecutor{
 		id:            "pool",
-		executeErrors: map[string]error{"qwen3.5-plus": modelSupportErr},
+		executeErrors: map[string]error{"deepseek-v3.1": modelSupportErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -324,7 +324,7 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackOnModelSupportBadRequest(t
 		t.Fatalf("payload = %q, want %q", string(resp.Payload), "glm-5")
 	}
 	got := executor.ExecuteModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	if len(got) != len(want) {
 		t.Fatalf("execute calls = %v, want %v", got, want)
 	}
@@ -338,7 +338,7 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackOnModelSupportBadRequest(t
 	if !ok || updated == nil {
 		t.Fatalf("expected auth to remain registered")
 	}
-	state := updated.ModelStates["qwen3.5-plus"]
+	state := updated.ModelStates["deepseek-v3.1"]
 	if state == nil {
 		t.Fatalf("expected suspended upstream model state")
 	}
@@ -355,10 +355,10 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackOnModelSupportUnprocessabl
 	}
 	executor := &openAICompatPoolExecutor{
 		id:            "pool",
-		executeErrors: map[string]error{"qwen3.5-plus": modelSupportErr},
+		executeErrors: map[string]error{"deepseek-v3.1": modelSupportErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -370,7 +370,7 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackOnModelSupportUnprocessabl
 		t.Fatalf("payload = %q, want %q", string(resp.Payload), "glm-5")
 	}
 	got := executor.ExecuteModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	if len(got) != len(want) {
 		t.Fatalf("execute calls = %v, want %v", got, want)
 	}
@@ -385,10 +385,10 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackWithinSameAuth(t *testing.
 	alias := "claude-opus-4.66"
 	executor := &openAICompatPoolExecutor{
 		id:            "pool",
-		executeErrors: map[string]error{"qwen3.5-plus": &Error{HTTPStatus: http.StatusTooManyRequests, Message: "quota"}},
+		executeErrors: map[string]error{"deepseek-v3.1": &Error{HTTPStatus: http.StatusTooManyRequests, Message: "quota"}},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -400,7 +400,7 @@ func TestManagerExecute_OpenAICompatAliasPoolFallsBackWithinSameAuth(t *testing.
 		t.Fatalf("payload = %q, want %q", string(resp.Payload), "glm-5")
 	}
 	got := executor.ExecuteModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	for i := range want {
 		if got[i] != want[i] {
 			t.Fatalf("execute call %d model = %q, want %q", i, got[i], want[i])
@@ -413,11 +413,11 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolRetriesOnEmptyBootstrap(t *te
 	executor := &openAICompatPoolExecutor{
 		id: "pool",
 		streamPayloads: map[string][]cliproxyexecutor.StreamChunk{
-			"qwen3.5-plus": {},
+			"deepseek-v3.1": {},
 		},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -436,7 +436,7 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolRetriesOnEmptyBootstrap(t *te
 		t.Fatalf("payload = %q, want %q", string(payload), "glm-5")
 	}
 	got := executor.StreamModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	for i := range want {
 		if got[i] != want[i] {
 			t.Fatalf("stream call %d model = %q, want %q", i, got[i], want[i])
@@ -448,10 +448,10 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolFallsBackBeforeFirstByte(t *t
 	alias := "claude-opus-4.66"
 	executor := &openAICompatPoolExecutor{
 		id:                "pool",
-		streamFirstErrors: map[string]error{"qwen3.5-plus": &Error{HTTPStatus: http.StatusTooManyRequests, Message: "quota"}},
+		streamFirstErrors: map[string]error{"deepseek-v3.1": &Error{HTTPStatus: http.StatusTooManyRequests, Message: "quota"}},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -470,7 +470,7 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolFallsBackBeforeFirstByte(t *t
 		t.Fatalf("payload = %q, want %q", string(payload), "glm-5")
 	}
 	got := executor.StreamModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	for i := range want {
 		if got[i] != want[i] {
 			t.Fatalf("stream call %d model = %q, want %q", i, got[i], want[i])
@@ -486,10 +486,10 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolStopsOnInvalidRequest(t *test
 	invalidErr := &Error{HTTPStatus: http.StatusUnprocessableEntity, Message: "unprocessable entity"}
 	executor := &openAICompatPoolExecutor{
 		id:                "pool",
-		streamFirstErrors: map[string]error{"qwen3.5-plus": invalidErr},
+		streamFirstErrors: map[string]error{"deepseek-v3.1": invalidErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -498,7 +498,7 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolStopsOnInvalidRequest(t *test
 		t.Fatalf("execute stream error = %v, want %v", err, invalidErr)
 	}
 	got := executor.StreamModels()
-	if len(got) != 1 || got[0] != "qwen3.5-plus" {
+	if len(got) != 1 || got[0] != "deepseek-v3.1" {
 		t.Fatalf("stream calls = %v, want only first invalid model", got)
 	}
 }
@@ -511,10 +511,10 @@ func TestManagerExecute_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLaterReques
 	}
 	executor := &openAICompatPoolExecutor{
 		id:            "pool",
-		executeErrors: map[string]error{"qwen3.5-plus": modelSupportErr},
+		executeErrors: map[string]error{"deepseek-v3.1": modelSupportErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -529,7 +529,7 @@ func TestManagerExecute_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLaterReques
 	}
 
 	got := executor.ExecuteModels()
-	want := []string{"qwen3.5-plus", "glm-5", "glm-5", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5", "glm-5", "glm-5"}
 	if len(got) != len(want) {
 		t.Fatalf("execute calls = %v, want %v", got, want)
 	}
@@ -548,10 +548,10 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLater
 	}
 	executor := &openAICompatPoolExecutor{
 		id:                "pool",
-		streamFirstErrors: map[string]error{"qwen3.5-plus": modelSupportErr},
+		streamFirstErrors: map[string]error{"deepseek-v3.1": modelSupportErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -569,7 +569,7 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLater
 	}
 
 	got := executor.StreamModels()
-	want := []string{"qwen3.5-plus", "glm-5", "glm-5", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5", "glm-5", "glm-5"}
 	if len(got) != len(want) {
 		t.Fatalf("stream calls = %v, want %v", got, want)
 	}
@@ -584,7 +584,7 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolRotatesWithinAuth(t *testing.T
 	alias := "claude-opus-4.66"
 	executor := &openAICompatPoolExecutor{id: "pool"}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -599,7 +599,7 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolRotatesWithinAuth(t *testing.T
 	}
 
 	got := executor.CountModels()
-	want := []string{"qwen3.5-plus", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5"}
 	for i := range want {
 		if got[i] != want[i] {
 			t.Fatalf("count call %d model = %q, want %q", i, got[i], want[i])
@@ -615,10 +615,10 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLaterR
 	}
 	executor := &openAICompatPoolExecutor{
 		id:          "pool",
-		countErrors: map[string]error{"qwen3.5-plus": modelSupportErr},
+		countErrors: map[string]error{"deepseek-v3.1": modelSupportErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -633,7 +633,7 @@ func TestManagerExecuteCount_OpenAICompatAliasPoolSkipsSuspendedUpstreamOnLaterR
 	}
 
 	got := executor.CountModels()
-	want := []string{"qwen3.5-plus", "glm-5", "glm-5", "glm-5"}
+	want := []string{"deepseek-v3.1", "glm-5", "glm-5", "glm-5"}
 	if len(got) != len(want) {
 		t.Fatalf("count calls = %v, want %v", got, want)
 	}
@@ -650,7 +650,7 @@ func TestManagerExecute_OpenAICompatAliasPoolBlockedAuthDoesNotConsumeRetryBudge
 		OpenAICompatibility: []internalconfig.OpenAICompatibility{{
 			Name: "pool",
 			Models: []internalconfig.OpenAICompatibilityModel{
-				{Name: "qwen3.5-plus", Alias: alias},
+				{Name: "deepseek-v3.1", Alias: alias},
 				{Name: "glm-5", Alias: alias},
 			},
 		}},
@@ -701,7 +701,7 @@ func TestManagerExecute_OpenAICompatAliasPoolBlockedAuthDoesNotConsumeRetryBudge
 		HTTPStatus: http.StatusBadRequest,
 		Message:    "invalid_request_error: The requested model is not supported.",
 	}
-	for _, upstreamModel := range []string{"qwen3.5-plus", "glm-5"} {
+	for _, upstreamModel := range []string{"deepseek-v3.1", "glm-5"} {
 		m.MarkResult(context.Background(), Result{
 			AuthID:   badAuth.ID,
 			Provider: "pool",
@@ -733,10 +733,10 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolStopsOnInvalidBootstrap(t *te
 	invalidErr := &Error{HTTPStatus: http.StatusBadRequest, Message: "invalid_request_error: malformed payload"}
 	executor := &openAICompatPoolExecutor{
 		id:                "pool",
-		streamFirstErrors: map[string]error{"qwen3.5-plus": invalidErr},
+		streamFirstErrors: map[string]error{"deepseek-v3.1": invalidErr},
 	}
 	m := newOpenAICompatPoolTestManager(t, alias, []internalconfig.OpenAICompatibilityModel{
-		{Name: "qwen3.5-plus", Alias: alias},
+		{Name: "deepseek-v3.1", Alias: alias},
 		{Name: "glm-5", Alias: alias},
 	}, executor)
 
@@ -750,7 +750,7 @@ func TestManagerExecuteStream_OpenAICompatAliasPoolStopsOnInvalidBootstrap(t *te
 	if streamResult != nil {
 		t.Fatalf("streamResult = %#v, want nil on invalid bootstrap", streamResult)
 	}
-	if got := executor.StreamModels(); len(got) != 1 || got[0] != "qwen3.5-plus" {
+	if got := executor.StreamModels(); len(got) != 1 || got[0] != "deepseek-v3.1" {
 		t.Fatalf("stream calls = %v, want only first upstream model", got)
 	}
 }