refactor: remove unused IsAntigravityModelSupported function and its tests

backend/internal/service/antigravity_model_mapping_test.go

@@ -8,49 +8,6 @@ import (
 	"github.com/stretchr/testify/require"
 )
 
-func TestIsAntigravityModelSupported(t *testing.T) {
-	tests := []struct {
-		name     string
-		model    string
-		expected bool
-	}{
-		// 在默认映射中的模型（支持）
-		{"默认映射 - claude-sonnet-4-5", "claude-sonnet-4-5", true},
-		{"默认映射 - claude-opus-4-6-thinking", "claude-opus-4-6-thinking", true},
-		{"默认映射 - claude-opus-4-6", "claude-opus-4-6", true},
-		{"默认映射 - claude-opus-4-5-thinking", "claude-opus-4-5-thinking", true},
-		{"默认映射 - claude-sonnet-4-5-thinking", "claude-sonnet-4-5-thinking", true},
-		{"默认映射 - gemini-2.5-flash", "gemini-2.5-flash", true},
-		{"默认映射 - gemini-2.5-flash-lite", "gemini-2.5-flash-lite", true},
-		{"默认映射 - gemini-3-pro-high", "gemini-3-pro-high", true},
-		{"默认映射 - claude-haiku-4-5", "claude-haiku-4-5", true},
-
-		// 不在默认映射中的模型（不支持）
-		{"未配置 - claude-3-5-sonnet-20241022", "claude-3-5-sonnet-20241022", false},
-		{"未配置 - claude-3-5-sonnet-20240620", "claude-3-5-sonnet-20240620", false},
-		{"未配置 - claude-3-haiku-20240307", "claude-3-haiku-20240307", false},
-		{"未配置 - gemini-unknown-model", "gemini-unknown-model", false},
-		{"未配置 - gemini-future-version", "gemini-future-version", false},
-		{"未配置 - claude-unknown-model", "claude-unknown-model", false},
-		{"未配置 - claude-3-opus-20240229", "claude-3-opus-20240229", false},
-		{"未配置 - claude-future-version", "claude-future-version", false},
-
-		// 非 Claude/Gemini 模型（不支持）
-		{"不支持 - gpt-4", "gpt-4", false},
-		{"不支持 - gpt-4o", "gpt-4o", false},
-		{"不支持 - llama-3", "llama-3", false},
-		{"不支持 - mistral-7b", "mistral-7b", false},
-		{"不支持 - 空字符串", "", false},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			got := IsAntigravityModelSupported(tt.model)
-			require.Equal(t, tt.expected, got, "model: %s", tt.model)
-		})
-	}
-}
-
 func TestAntigravityGatewayService_GetMappedModel(t *testing.T) {
 	svc := &AntigravityGatewayService{}
 

backend/internal/service/gateway_service.go

@@ -22,7 +22,6 @@ import (
 	"time"
 
 	"github.com/Wei-Shaw/sub2api/internal/config"
-	"github.com/Wei-Shaw/sub2api/internal/domain"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/claude"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/ctxkey"
 	"github.com/Wei-Shaw/sub2api/internal/util/responseheaders"
@@ -2617,13 +2616,6 @@ func (s *GatewayService) isModelSupportedByAccount(account *Account, requestedMo
 	return account.IsModelSupported(requestedModel)
 }
 
-// IsAntigravityModelSupported 检查 Antigravity 平台是否支持指定模型
-// 只有在默认映射（DefaultAntigravityModelMapping）中配置的模型才被支持
-func IsAntigravityModelSupported(requestedModel string) bool {
-	// 检查是否在默认映射的 key 中
-	_, exists := domain.DefaultAntigravityModelMapping[requestedModel]
-	return exists
-}
 
 // GetAccessToken 获取账号凭证
 func (s *GatewayService) GetAccessToken(ctx context.Context, account *Account) (string, string, error) {