diff --git a/.gitignore b/.gitignore
index e11f354b..de7ef9df 100644
--- a/.gitignore
+++ b/.gitignore
@@ -36,3 +36,4 @@ SGGL/.svn
 /SGGL/CLAUDE.md
 /SGGL/.claude
 /SGGL/AGENTS.md
+/SGGL/outputs/manual-20260529-prefab-welding/presentations/prefab-welding-doc
diff --git a/DataBase/版本日志/SGGLDB_V2026-05-29-lpf.sql b/DataBase/版本日志/SGGLDB_V2026-05-29-lpf.sql
new file mode 100644
index 00000000..df276a0a
--- /dev/null
+++ b/DataBase/版本日志/SGGLDB_V2026-05-29-lpf.sql
@@ -0,0 +1,37 @@
+IF OBJECT_ID(N'dbo.HJGL_WeldingDailyTempDetail', N'U') IS NULL
+BEGIN
+    CREATE TABLE dbo.HJGL_WeldingDailyTempDetail
+    (
+        TempDetailId NVARCHAR(50) NOT NULL,
+        ProjectId NVARCHAR(50) NULL,
+        UnitId NVARCHAR(50) NULL,
+        UnitWorkId NVARCHAR(50) NULL,
+        WeldJointId NVARCHAR(50) NOT NULL,
+        WeldingDate DATETIME NOT NULL,
+        CoverWelderId NVARCHAR(50) NULL,
+        BackingWelderId NVARCHAR(50) NULL,
+        JointAttribute NVARCHAR(50) NULL,
+        WeldingLocationId NVARCHAR(50) NULL,
+        WeldingMode NVARCHAR(50) NULL,
+        AttachUrl NVARCHAR(500) NULL,
+        SubmitPersonId NVARCHAR(50) NULL,
+        SubmitDate DATETIME NOT NULL CONSTRAINT DF_HJGL_WeldingDailyTempDetail_SubmitDate DEFAULT(GETDATE()),
+        AuditState INT NOT NULL CONSTRAINT DF_HJGL_WeldingDailyTempDetail_AuditState DEFAULT(0),
+        AuditMan NVARCHAR(50) NULL,
+        AuditDate DATETIME NULL,
+        AuditRemark NVARCHAR(500) NULL,
+        CONSTRAINT PK_HJGL_WeldingDailyTempDetail PRIMARY KEY CLUSTERED (TempDetailId),
+        CONSTRAINT CK_HJGL_WeldingDailyTempDetail_AuditState CHECK (AuditState IN (0, 1))
+    );
+
+    CREATE UNIQUE NONCLUSTERED INDEX UX_HJGL_WeldingDailyTempDetail_Pending
+    ON dbo.HJGL_WeldingDailyTempDetail (WeldJointId, WeldingDate)
+    WHERE AuditState = 0;
+
+    CREATE NONCLUSTERED INDEX IX_HJGL_WeldingDailyTempDetail_Query
+    ON dbo.HJGL_WeldingDailyTempDetail (ProjectId, AuditState, WeldingDate, UnitWorkId);
+
+    CREATE NONCLUSTERED INDEX IX_HJGL_WeldingDailyTempDetail_WeldJointId
+    ON dbo.HJGL_WeldingDailyTempDetail (WeldJointId);
+END
+GO
\ No newline at end of file