merge: 合并 upstream/main 解决 PR #37 冲突

- 删除 backend/internal/model/account.go 符合重构方向
- 合并最新的项目结构重构
- 包含 SSE 格式解析修复
- 更新依赖和配置文件

backend/internal/handler/admin/account_handler.go

@@ -4,7 +4,7 @@ import (
 	"strconv"
 	"strings"
 
-	"github.com/Wei-Shaw/sub2api/internal/model"
+	"github.com/Wei-Shaw/sub2api/internal/handler/dto"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/claude"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/geminicli"
 	"github.com/Wei-Shaw/sub2api/internal/pkg/openai"
@@ -107,7 +107,7 @@ type BulkUpdateAccountsRequest struct {
 
 // AccountWithConcurrency extends Account with real-time concurrency info
 type AccountWithConcurrency struct {
-	*model.Account
+	*dto.Account
 	CurrentConcurrency int `json:"current_concurrency"`
 }
 
@@ -142,7 +142,7 @@ func (h *AccountHandler) List(c *gin.Context) {
 	result := make([]AccountWithConcurrency, len(accounts))
 	for i := range accounts {
 		result[i] = AccountWithConcurrency{
-			Account:            &accounts[i],
+			Account:            dto.AccountFromService(&accounts[i]),
 			CurrentConcurrency: concurrencyCounts[accounts[i].ID],
 		}
 	}
@@ -165,7 +165,7 @@ func (h *AccountHandler) GetByID(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, account)
+	response.Success(c, dto.AccountFromService(account))
 }
 
 // Create handles creating a new account
@@ -193,7 +193,7 @@ func (h *AccountHandler) Create(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, account)
+	response.Success(c, dto.AccountFromService(account))
 }
 
 // Update handles updating an account
@@ -227,7 +227,7 @@ func (h *AccountHandler) Update(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, account)
+	response.Success(c, dto.AccountFromService(account))
 }
 
 // Delete handles deleting an account
@@ -398,7 +398,7 @@ func (h *AccountHandler) Refresh(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, updatedAccount)
+	response.Success(c, dto.AccountFromService(updatedAccount))
 }
 
 // GetStats handles getting account statistics
@@ -447,7 +447,7 @@ func (h *AccountHandler) ClearError(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, account)
+	response.Success(c, dto.AccountFromService(account))
 }
 
 // BatchCreate handles batch creating accounts
@@ -823,7 +823,7 @@ func (h *AccountHandler) SetSchedulable(c *gin.Context) {
 		return
 	}
 
-	response.Success(c, account)
+	response.Success(c, dto.AccountFromService(account))
 }
 
 // GetAvailableModels handles getting available models for an account