(new): rich message support

(fix): runtime reliability
(tests): regression coverage
(doc): v1.1 release notes

update_context.go

@@ -130,6 +130,20 @@ func (bot *Bot[T]) prepareUpdateCtx(u *tgapi.Update, ctx *MessageContext) {
 				from = u.EditedBusinessMessage.From
 			}
 		}
+	case tgapi.UpdateTypeGuestMessage:
+		if u.GuestMessage != nil {
+			ctx.Msg = u.GuestMessage
+			if u.GuestMessage.Chat != nil {
+				chat = u.GuestMessage.Chat
+			}
+			if u.GuestMessage.From != nil {
+				from = u.GuestMessage.From
+			}
+		}
+	case tgapi.UpdateTypeDeletedBusinessMessages:
+		if u.DeletedBusinessMessages != nil {
+			chat = &u.DeletedBusinessMessages.Chat
+		}
 	case tgapi.UpdateTypeInlineQuery:
 		if u.InlineQuery != nil {
 			from = &u.InlineQuery.From
@@ -187,23 +201,43 @@ func (bot *Bot[T]) prepareUpdateCtx(u *tgapi.Update, ctx *MessageContext) {
 		}
 	case tgapi.UpdateTypePollAnswer:
 		if u.PollAnswer != nil {
-			from = &u.PollAnswer.User
+			if u.PollAnswer.User.ID != 0 {
+				from = &u.PollAnswer.User
+			} else if u.PollAnswer.VoterChat.ID != 0 {
+				chat = &u.PollAnswer.VoterChat
+			}
 		}
 	case tgapi.UpdateTypeMessageReaction:
 		if u.MessageReaction != nil {
 			from = u.MessageReaction.User
 			chat = u.MessageReaction.Chat
 		}
+	case tgapi.UpdateTypeMessageReactionCount:
+		if u.MessageReactionCount != nil {
+			chat = u.MessageReactionCount.Chat
+		}
 	case tgapi.UpdateTypeChatBoost:
 		if u.ChatBoost != nil {
-			from = &u.ChatBoost.Boost.Source.User
+			if u.ChatBoost.Boost.Source.User.ID != 0 {
+				from = &u.ChatBoost.Boost.Source.User
+			}
 			chat = &u.ChatBoost.Chat
 		}
 	case tgapi.UpdateTypeRemovedChatBoost:
 		if u.RemovedChatBoost != nil {
-			from = &u.RemovedChatBoost.Source.User
+			if u.RemovedChatBoost.Source.User.ID != 0 {
+				from = &u.RemovedChatBoost.Source.User
+			}
 			chat = &u.RemovedChatBoost.Chat
 		}
+	case tgapi.UpdateTypeManagedBot:
+		if u.ManagedBot != nil {
+			from = &u.ManagedBot.User
+		}
+	case tgapi.UpdateTypeSubscription:
+		if u.Subscription != nil {
+			from = &u.Subscription.User
+		}
 	}
 	if ctx.Msg != nil && from == nil {
 		from = ctx.Msg.From