backend: require confirmation for signed channel updates [CI]

backend/src/MoShiro.Backend.Storage.Sqlite/Schema.cs

@@ -5,7 +5,7 @@ namespace MoShiro.Backend.Storage.Sqlite;
 /// <summary>表结构。版本记录在 <c>PRAGMA user_version</c>；以后的迁移是按版本号追加的内置 SQL。</summary>
 internal static class Schema
 {
-    public const int CurrentVersion = 6;
+    public const int CurrentVersion = 7;
 
     public static void Migrate(SqliteConnection connection)
     {
@@ -101,6 +101,15 @@ internal static class Schema
             connection.Exec("PRAGMA user_version = 6");
             transaction.Commit();
         }
+
+        if (version < 7)
+        {
+            using SqliteTransaction transaction = connection.BeginTransaction();
+            connection.Exec("ALTER TABLE agents ADD COLUMN ipv6_diagnostics TEXT");
+            connection.Exec("ALTER TABLE probes ADD COLUMN ipv6_diagnostics TEXT");
+            connection.Exec("PRAGMA user_version = 7");
+            transaction.Commit();
+        }
     }
 
     /// <summary>