Plugin commands were added to setMyCommands menu but didn't have
bot.command() handlers registered. This meant /flow-start and other
plugin commands would fall through to the general message handler
instead of being dispatched to the plugin command executor.
Now we register bot.command() handlers for each plugin command,
with full authorization checks and proper result delivery.
- Add plugin command specs to Telegram setMyCommands for autocomplete
- Export GatewayRequestHandler types in plugin-sdk for plugin authors
- Enables plugins to register gateway methods and appear in command menus
Add channels.telegram.linkPreview config to control whether link previews
are shown in outbound messages. When set to false, uses Telegram's
link_preview_options.is_disabled to suppress URL previews.
- Add linkPreview to TelegramAccountConfig type
- Add Zod schema validation for linkPreview
- Pass link_preview_options to sendMessage in send.ts and bot/delivery.ts
- Propagate linkPreview config through deliverReplies callers
- Add tests for link preview behavior
Fixes#1675
Co-Authored-By: Claude <noreply@anthropic.com>
When native slash commands are executed in Telegram topics/forums, the
originating topic context was not being preserved. This caused sub-agent
announcements to be delivered to the wrong topic.
Root cause: Native slash command context did not set OriginatingChannel
and OriginatingTo, causing session delivery context to fallback to the
user's personal ID instead of the group ID + topic.
Fix: Added OriginatingChannel and OriginatingTo to native slash command
context, ensuring topic information is preserved for sub-agent announcements.
Related session fields:
- lastThreadId: preserved via MessageThreadId
- lastTo: now correctly set to group ID via OriginatingTo
- deliveryContext: includes threadId for proper routing
