fix(telegram): thread accountId through native command context

Native Telegram commands (slash menu) did not include AccountId in the
message context, causing /reset confirmations to be delivered through
the default Telegram bot instead of the account-specific bot.

The session routing worked correctly (correct agent session was reset)
but the confirmation message delivery used the wrong account because
params.ctx.AccountId was undefined in handleCommands.

Fixes #2038

src/telegram/bot-native-commands.ts

@@ -485,6 +485,8 @@ export const registerTelegramNativeCommands = ({
             // Originating context for sub-agent announce routing
             OriginatingChannel: "telegram" as const,
             OriginatingTo: `telegram:${chatId}`,
+            // Multi-account: preserve accountId for command confirmations (e.g., /reset)
+            AccountId: route.accountId,
           });
 
           const disableBlockStreaming =