feat: 计划模块 + 待签约迁移 + 表格排序 + 已签约→项目

- 新增计划模块(plan_finances/plan_expense_records, 侧边栏计划tab)
- 待签约项目自动迁移到计划模块(data_fixes 幂等)
- 已签约tab改名为项目(业务+计划两个模块)
- 业务模块表格点击列头排序(月度/季度/总视图)
- 计划与业务侧边栏位置对调
- plan模块CSS修复(使用finance-tab类)
- 版本号 v1.0.0.17

backend/migrations/data_fixes.py

@@ -112,3 +112,31 @@ def migrate_fix_expense_status():
             print(f"[migrate] expense_records: {affected} 条记录 status 修正为 '计入费用'")
     finally:
         conn.close()
+
+
+def migrate_move_pending_to_plan():
+    """迁移业务待签约项目到计划模块（幂等）"""
+    from db import db
+
+    conn = db()
+    try:
+        cur = conn.cursor()
+        # 仅迁移 id 不存在于计划表的待签约项目
+        cur.execute(
+            "INSERT INTO plan_finances "
+            "SELECT * FROM project_finances WHERE status='待签约' "
+            "AND id NOT IN (SELECT id FROM plan_finances)"
+        )
+        moved = cur.rowcount
+        if moved:
+            # 删除已迁移的原记录
+            cur.execute(
+                "DELETE FROM project_finances WHERE status='待签约' "
+                "AND id IN (SELECT id FROM plan_finances)"
+            )
+            deleted = cur.rowcount
+            conn.commit()
+            print(f"[migrate] 待签约项目迁移到计划: {moved} 条 (已删除 {deleted} 条)")
+        cur.close()
+    finally:
+        conn.close()