diff --git a/SimpleAdmin.Application/Services/Onboarding/Audit/OnboardingAuditService.cs b/SimpleAdmin.Application/Services/Onboarding/Audit/OnboardingAuditService.cs
index 84f77b9..115a312 100644
--- a/SimpleAdmin.Application/Services/Onboarding/Audit/OnboardingAuditService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/Audit/OnboardingAuditService.cs
@@ -2,16 +2,15 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingAuditService : IOnboardingAuditService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IConfigService _config;
     private readonly IOnboardingContractSnapshotService _snapshotService;
 
     public OnboardingAuditService(
-        ISqlSugarClient db,
         IConfigService config,
         IOnboardingContractSnapshotService snapshotService)
     {
-        _db = db;
+        _db = DbContext.DB;
         _config = config;
         _snapshotService = snapshotService;
     }
@@ -127,3 +126,5 @@ public class OnboardingAuditService : IOnboardingAuditService
         }).ExecuteCommandAsync();
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
index 54dffd8..c49de91 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractDocument/OnboardingContractDocumentService.cs
@@ -2,12 +2,12 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingContractDocumentService : IOnboardingContractDocumentService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IFileService _fileService;
 
-    public OnboardingContractDocumentService(ISqlSugarClient db, IFileService fileService)
+    public OnboardingContractDocumentService(IFileService fileService)
     {
-        _db = db;
+        _db = DbContext.DB;
         _fileService = fileService;
     }
 
@@ -95,3 +95,5 @@ public class OnboardingContractDocumentService : IOnboardingContractDocumentServ
         return output.ToArray();
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs b/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
index 7e4de73..3595834 100644
--- a/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/ContractSnapshot/OnboardingContractSnapshotService.cs
@@ -3,8 +3,8 @@ namespace SimpleAdmin.Application;
 /// <summary>冻结任务合同变量；DOCX 生成阶段只读取本快照，不再读取模板实时值。</summary>
 public class OnboardingContractSnapshotService : IOnboardingContractSnapshotService
 {
-    private readonly ISqlSugarClient _db;
-    public OnboardingContractSnapshotService(ISqlSugarClient db) => _db = db;
+    private readonly SqlSugarScope _db;
+    public OnboardingContractSnapshotService() => _db = DbContext.DB;
 
     public async Task Build(long taskId, ObTaskEmployeeInfo employeeInfo = null)
     {
@@ -79,4 +79,5 @@ public class OnboardingContractSnapshotService : IOnboardingContractSnapshotServ
             _ => definition.VariableCode
         };
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/Employee/OnboardingEmployeeService.cs b/SimpleAdmin.Application/Services/Onboarding/Employee/OnboardingEmployeeService.cs
index 06630a3..2471277 100644
--- a/SimpleAdmin.Application/Services/Onboarding/Employee/OnboardingEmployeeService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/Employee/OnboardingEmployeeService.cs
@@ -3,8 +3,8 @@ namespace SimpleAdmin.Application;
 /// <summary>仅展示审核通过后创建的正式员工档案；入职资料的来源任务可追溯。</summary>
 public class OnboardingEmployeeService : IOnboardingEmployeeService
 {
-    private readonly ISqlSugarClient _db;
-    public OnboardingEmployeeService(ISqlSugarClient db) => _db = db;
+    private readonly SqlSugarScope _db;
+    public OnboardingEmployeeService() => _db = DbContext.DB;
 
     public Task<SqlSugarPagedList<ObEmployee>> Page(OnboardingEmployeePageInput input) => _db.Queryable<ObEmployee>()
         .WhereIF(!string.IsNullOrWhiteSpace(input.EmployeeName), x => x.EmployeeName.Contains(input.EmployeeName) || x.IdCardNumber.Contains(input.EmployeeName))
@@ -21,4 +21,5 @@ public class OnboardingEmployeeService : IOnboardingEmployeeService
         var audits = task == null ? new List<ObTaskAudit>() : await _db.Queryable<ObTaskAudit>().Where(x => x.TaskId == task.Id).OrderByDescending(x => x.AuditedAt).ToListAsync();
         return new OnboardingEmployeeDetailOutput { Employee = employee, Task = task, Contracts = contracts, Audits = audits };
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/EntryConfig/OnboardingEntryConfigService.cs b/SimpleAdmin.Application/Services/Onboarding/EntryConfig/OnboardingEntryConfigService.cs
index 89bf0d7..02c9c16 100644
--- a/SimpleAdmin.Application/Services/Onboarding/EntryConfig/OnboardingEntryConfigService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/EntryConfig/OnboardingEntryConfigService.cs
@@ -5,11 +5,11 @@ namespace SimpleAdmin.Application;
 /// </summary>
 public class OnboardingEntryConfigService : IOnboardingEntryConfigService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
 
-    public OnboardingEntryConfigService(ISqlSugarClient db)
+    public OnboardingEntryConfigService()
     {
-        _db = db;
+        _db = DbContext.DB;
     }
 
     public Task<List<ObFormField>> ListFormFields()
@@ -243,3 +243,5 @@ public class OnboardingEntryConfigService : IOnboardingEntryConfigService
             throw Oops.Bah("岗位不存在、未启用或不属于该公司");
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/Lifecycle/OnboardingTaskLifecycleService.cs b/SimpleAdmin.Application/Services/Onboarding/Lifecycle/OnboardingTaskLifecycleService.cs
index b15e638..bc0f268 100644
--- a/SimpleAdmin.Application/Services/Onboarding/Lifecycle/OnboardingTaskLifecycleService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/Lifecycle/OnboardingTaskLifecycleService.cs
@@ -2,12 +2,12 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingTaskLifecycleService : IOnboardingTaskLifecycleService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IConfigService _config;
 
-    public OnboardingTaskLifecycleService(ISqlSugarClient db, IConfigService config)
+    public OnboardingTaskLifecycleService(IConfigService config)
     {
-        _db = db;
+        _db = DbContext.DB;
         _config = config;
     }
 
@@ -87,4 +87,5 @@ public class OnboardingTaskLifecycleService : IOnboardingTaskLifecycleService
             AuditedAt = DateTime.Now
         }).ExecuteCommandAsync();
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/MaterialReview/OnboardingMaterialReviewService.cs b/SimpleAdmin.Application/Services/Onboarding/MaterialReview/OnboardingMaterialReviewService.cs
index 04daeec..d688099 100644
--- a/SimpleAdmin.Application/Services/Onboarding/MaterialReview/OnboardingMaterialReviewService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/MaterialReview/OnboardingMaterialReviewService.cs
@@ -2,12 +2,12 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingMaterialReviewService : IOnboardingMaterialReviewService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IConfigService _config;
 
-    public OnboardingMaterialReviewService(ISqlSugarClient db, IConfigService config)
+    public OnboardingMaterialReviewService(IConfigService config)
     {
-        _db = db;
+        _db = DbContext.DB;
         _config = config;
     }
 
@@ -62,4 +62,5 @@ public class OnboardingMaterialReviewService : IOnboardingMaterialReviewService
             throw Oops.Bah("您不是该入职任务的审核人");
         }
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/PublicSubmission/OnboardingPublicSubmissionService.cs b/SimpleAdmin.Application/Services/Onboarding/PublicSubmission/OnboardingPublicSubmissionService.cs
index 49104a0..eb0b1a1 100644
--- a/SimpleAdmin.Application/Services/Onboarding/PublicSubmission/OnboardingPublicSubmissionService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/PublicSubmission/OnboardingPublicSubmissionService.cs
@@ -2,14 +2,13 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingPublicSubmissionService : IOnboardingPublicSubmissionService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IOnboardingContractSnapshotService _snapshotService;
 
     public OnboardingPublicSubmissionService(
-        ISqlSugarClient db,
         IOnboardingContractSnapshotService snapshotService)
     {
-        _db = db;
+        _db = DbContext.DB;
         _snapshotService = snapshotService;
     }
 
@@ -263,3 +262,5 @@ public class OnboardingPublicSubmissionService : IOnboardingPublicSubmissionServ
         return task;
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs b/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
index efb41e2..a082964 100644
--- a/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/PublicTask/OnboardingPublicTaskService.cs
@@ -5,14 +5,13 @@ namespace SimpleAdmin.Application;
 /// </summary>
 public class OnboardingPublicTaskService : IOnboardingPublicTaskService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IOnboardingContractSnapshotService _snapshotService;
 
     public OnboardingPublicTaskService(
-        ISqlSugarClient db,
         IOnboardingContractSnapshotService snapshotService)
     {
-        _db = db;
+        _db = DbContext.DB;
         _snapshotService = snapshotService;
     }
 
@@ -154,3 +153,5 @@ public class OnboardingPublicTaskService : IOnboardingPublicTaskService
         return link;
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/Task/OnboardingTaskService.cs b/SimpleAdmin.Application/Services/Onboarding/Task/OnboardingTaskService.cs
index b8e57e2..779b1bb 100644
--- a/SimpleAdmin.Application/Services/Onboarding/Task/OnboardingTaskService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/Task/OnboardingTaskService.cs
@@ -2,16 +2,15 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingTaskService : IOnboardingTaskService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
     private readonly IConfigService _configService;
     private readonly IOnboardingContractSnapshotService _snapshotService;
 
     public OnboardingTaskService(
-        ISqlSugarClient db,
         IConfigService configService,
         IOnboardingContractSnapshotService snapshotService)
     {
-        _db = db;
+        _db = DbContext.DB;
         _configService = configService;
         _snapshotService = snapshotService;
     }
@@ -125,3 +124,5 @@ public class OnboardingTaskService : IOnboardingTaskService
         };
     }
 }
+
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/TaskContractVariable/OnboardingTaskContractVariableService.cs b/SimpleAdmin.Application/Services/Onboarding/TaskContractVariable/OnboardingTaskContractVariableService.cs
index 5fe51fc..91cfc49 100644
--- a/SimpleAdmin.Application/Services/Onboarding/TaskContractVariable/OnboardingTaskContractVariableService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/TaskContractVariable/OnboardingTaskContractVariableService.cs
@@ -5,10 +5,10 @@ namespace SimpleAdmin.Application;
 /// </summary>
 public class OnboardingTaskContractVariableService : IOnboardingTaskContractVariableService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
 
-    public OnboardingTaskContractVariableService(ISqlSugarClient db)
-        => _db = db;
+    public OnboardingTaskContractVariableService()
+        => _db = DbContext.DB;
 
     public async Task<List<OnboardingTaskContractVariableOutput>> List(
         OnboardingTaskContractVariableQueryInput input)
@@ -136,4 +136,5 @@ public class OnboardingTaskContractVariableService : IOnboardingTaskContractVari
                 .ExecuteCommandAsync();
         }
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/Services/Onboarding/TaskQuery/OnboardingTaskQueryService.cs b/SimpleAdmin.Application/Services/Onboarding/TaskQuery/OnboardingTaskQueryService.cs
index b791910..b3ab815 100644
--- a/SimpleAdmin.Application/Services/Onboarding/TaskQuery/OnboardingTaskQueryService.cs
+++ b/SimpleAdmin.Application/Services/Onboarding/TaskQuery/OnboardingTaskQueryService.cs
@@ -2,11 +2,11 @@ namespace SimpleAdmin.Application;
 
 public class OnboardingTaskQueryService : IOnboardingTaskQueryService
 {
-    private readonly ISqlSugarClient _db;
+    private readonly SqlSugarScope _db;
 
-    public OnboardingTaskQueryService(ISqlSugarClient db)
+    public OnboardingTaskQueryService()
     {
-        _db = db;
+        _db = DbContext.DB;
     }
 
     public Task<SqlSugarPagedList<ObOnboardingTask>> Page(OnboardingTaskPageInput input)
@@ -41,4 +41,5 @@ public class OnboardingTaskQueryService : IOnboardingTaskQueryService
                 .ToListAsync()
         };
     }
-}
\ No newline at end of file
+}
+
diff --git a/SimpleAdmin.Application/SimpleAdmin.Application.xml b/SimpleAdmin.Application/SimpleAdmin.Application.xml
index a06d95c..2ec50bd 100644
--- a/SimpleAdmin.Application/SimpleAdmin.Application.xml
+++ b/SimpleAdmin.Application/SimpleAdmin.Application.xml
@@ -124,7 +124,9 @@
             </summary>
         </member>
         <member name="T:SimpleAdmin.Application.OnboardingTaskContractVariableService">
-            <summary>管理端在链接发送前填写合同薪资、补贴等人事变量。</summary>
+            <summary>
+            管理端在链接发送前填写合同薪资、补贴等人事变量。
+            </summary>
         </member>
         <member name="T:SimpleAdmin.Application.IOrgService">
             <summary>