feat(backend): add kiro account support

backend/internal/handler/admin/account_handler.go

@@ -22,6 +22,7 @@ import (
 	"github.com/Wei-Shaw/sub2api/internal/pkg/claude"
 	infraerrors "github.com/Wei-Shaw/sub2api/internal/pkg/errors"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/geminicli"
+	kiropkg "github.com/Wei-Shaw/sub2api/internal/pkg/kiro"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/response"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/timezone"
@@ -179,6 +180,9 @@ type AccountWithConcurrency struct {
 const accountListGroupUngroupedQueryValue = "ungrouped"
 
 func (h *AccountHandler) buildAccountResponseWithRuntime(ctx context.Context, account *service.Account) AccountWithConcurrency {
+	if h.accountUsageService != nil {
+		h.accountUsageService.EnrichAccountWithKiroRuntimeState(ctx, account)
+	}
 	item := AccountWithConcurrency{
 		Account:            dto.AccountFromService(account),
 		CurrentConcurrency: 0,
@@ -351,6 +355,9 @@ func (h *AccountHandler) List(c *gin.Context) {
 	result := make([]AccountWithConcurrency, len(accounts))
 	for i := range accounts {
 		acc := &accounts[i]
+		if h.accountUsageService != nil {
+			h.accountUsageService.EnrichAccountWithKiroRuntimeState(c.Request.Context(), acc)
+		}
 		item := AccountWithConcurrency{
 			Account:            dto.AccountFromService(acc),
 			CurrentConcurrency: concurrencyCounts[acc.ID],
@@ -1913,6 +1920,18 @@ func (h *AccountHandler) GetAvailableModels(c *gin.Context) {
 		return
 	}
 
+	// Handle Kiro accounts
+	if account.Platform == service.PlatformKiro {
+		mapping := account.GetModelMapping()
+		if len(mapping) == 0 {
+			response.Success(c, kiropkg.DefaultModels)
+			return
+		}
+
+		response.Success(c, buildMappedKiroModels(mapping))
+		return
+	}
+
 	// Handle Claude/Anthropic accounts
 	// For OAuth and Setup-Token accounts: return default models
 	if account.IsOAuth() {
@@ -1954,6 +1973,28 @@ func (h *AccountHandler) GetAvailableModels(c *gin.Context) {
 	response.Success(c, models)
 }
 
+func buildMappedKiroModels(mapping map[string]string) []kiropkg.Model {
+	models := make([]kiropkg.Model, 0, len(mapping))
+	for requestedModel := range mapping {
+		var found bool
+		for _, dm := range kiropkg.DefaultModels {
+			if dm.ID == requestedModel {
+				models = append(models, dm)
+				found = true
+				break
+			}
+		}
+		if !found {
+			models = append(models, kiropkg.Model{
+				ID:          requestedModel,
+				Type:        "model",
+				DisplayName: requestedModel,
+			})
+		}
+	}
+	return models
+}
+
 // SetPrivacy handles setting privacy for a single OpenAI/Antigravity OAuth account
 // POST /api/v1/admin/accounts/:id/set-privacy
 func (h *AccountHandler) SetPrivacy(c *gin.Context) {
@@ -2166,6 +2207,12 @@ func (h *AccountHandler) GetAntigravityDefaultModelMapping(c *gin.Context) {
 	response.Success(c, domain.DefaultAntigravityModelMapping)
 }
 
+// GetKiroDefaultModelMapping 获取 Kiro 平台的默认模型映射
+// GET /api/v1/admin/accounts/kiro/default-model-mapping
+func (h *AccountHandler) GetKiroDefaultModelMapping(c *gin.Context) {
+	response.Success(c, domain.DefaultKiroModelMapping)
+}
+
 // sanitizeExtraBaseRPM 对 extra map 中的 base_rpm 值进行范围校验和归一化。
 // 负值归零，超过 10000 截断为 10000。extra 为 nil 或不含 base_rpm 时无操作。
 func sanitizeExtraBaseRPM(extra map[string]any) {