diff --git a/scripts/create_tables.py b/scripts/create_tables.py
index 179e24e..68ad1f6 100644
--- a/scripts/create_tables.py
+++ b/scripts/create_tables.py
@@ -264,6 +264,38 @@ async def main():
         except Exception as e:
             print(f'  WARN: pipeline_agent_questions migrate failed: {e}')
 
+        # pipeline_human_tasks SDLC 项目级人类任务列迁移（项目/迭代/bug 归属 + QC + bug 验收）
+        try:
+            _pht_cols = {
+                "project_id": "VARCHAR(32) NULL COMMENT '项目ID'",
+                "iteration_id": "VARCHAR(32) NULL COMMENT '迭代ID'",
+                "bug_id": "VARCHAR(32) NULL COMMENT '关联BugID'",
+                "qc_status": "VARCHAR(20) NULL DEFAULT 'pending' COMMENT 'QC状态'",
+                "qc_comment": "VARCHAR(500) NULL COMMENT 'QC意见'",
+            }
+            for col, ddl in _pht_cols.items():
+                r = await sor.sqlExe(
+                    "SELECT COUNT(*) as c FROM information_schema.COLUMNS "
+                    "WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='pipeline_human_tasks' "
+                    "AND COLUMN_NAME=${col}$", {"col": col})
+                await sor.sqlExe("COMMIT", {})
+                if not r or getattr(r[0], 'c', 0) == 0:
+                    await sor.execute(
+                        f"ALTER TABLE pipeline_human_tasks ADD COLUMN {col} {ddl}", {})
+            for idx_name, idx_col in [("pipeline_human_tasks_idx_pht_project", "project_id"),
+                                      ("pipeline_human_tasks_idx_pht_iteration", "iteration_id")]:
+                r = await sor.sqlExe(
+                    "SELECT COUNT(*) as c FROM information_schema.STATISTICS "
+                    "WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='pipeline_human_tasks' "
+                    "AND INDEX_NAME=${idx}$", {"idx": idx_name})
+                await sor.sqlExe("COMMIT", {})
+                if not r or getattr(r[0], 'c', 0) == 0:
+                    await sor.execute(
+                        f"CREATE INDEX {idx_name} ON pipeline_human_tasks({idx_col})", {})
+            print('  migrate: pipeline_human_tasks project/iteration/bug/qc columns ensured')
+        except Exception as e:
+            print(f'  WARN: pipeline_human_tasks migrate failed: {e}')
+
         # sd_features 功能/需求表（pipeline-sdlc 业务表）幂等建表——手写 DDL 避开 json2ddl 的 DEFAULT ''N'' bug
         try:
             await sor.execute(_SD_FEATURES_DDL, {})