fix: MaybeInaccessible unwrap, remove unused check_worker

fix: ChatId&str, ReplyMarkup json, unused imports

WorkerBot: custom dispatch + worker API (bypasses api.telegram.org block)

fix: pass String directly to get_chat_member (Into<ChatId> handles it)

fix: real channel verification via getChatMember + dynamic channel links in keyboard

fix: keyboard ReplyMarkup→InlineKeyboardMarkup, UserId type, flatten removal

fix: all 34 compilation errors - emoji conflict, clap env, ChatId, clone, flatten, img stubs

Telegram Bot完整实现 + HF Space部署