添加报表页面，更新用户管理和注册功能

db/migrations.py

@@ -66,6 +66,9 @@ def migrate_database(conn, target_version: int) -> None:
     if current_version < 10:
         _migrate_to_v10(conn)
         current_version = 10
+    if current_version < 11:
+        _migrate_to_v11(conn)
+        current_version = 11
 
     if current_version != int(target_version):
         set_current_version(conn, int(target_version))
@@ -450,3 +453,26 @@ def _migrate_to_v10(conn):
 
     if changed:
         conn.commit()
+
+
+def _migrate_to_v11(conn):
+    """迁移到版本11 - 取消注册待审核：历史 pending 用户直接置为 approved"""
+    cursor = conn.cursor()
+    now_str = get_cst_now_str()
+
+    try:
+        cursor.execute(
+            """
+            UPDATE users
+            SET status = 'approved',
+                approved_at = COALESCE(NULLIF(approved_at, ''), ?)
+            WHERE status = 'pending'
+            """,
+            (now_str,),
+        )
+        updated = cursor.rowcount
+        conn.commit()
+        if updated:
+            print(f"  ✓ 已将 {updated} 个 pending 用户迁移为 approved")
+    except sqlite3.OperationalError as e:
+        print(f"  ⚠️ v11 迁移跳过: {e}")