feat(bot): add /dashboard command and MINI_APP_URL config

- Add /dashboard command to BotFather registration alongside /app
- Add new MINI_APP_URL env var for dashboard URL (separate from CORS origins)
- Pass MINI_APP_URL and BOT_API_URL in CD workflow
- Update Terraform with new variable for future infrastructure deployments

apps/bot/src/telegram-commands.ts

@@ -24,7 +24,9 @@ const DEFAULT_COMMAND_NAMES = [
 const PRIVATE_CHAT_COMMAND_NAMES = [
   ...DEFAULT_COMMAND_NAMES,
   'anon',
-  'cancel'
+  'cancel',
+  'app',
+  'dashboard'
 ] as const satisfies readonly TelegramCommandName[]
 const GROUP_CHAT_COMMAND_NAMES = DEFAULT_COMMAND_NAMES
 const GROUP_MEMBER_COMMAND_NAMES = [