feat: sync rich text message support

internal/app/dialogs/service.go

@@ -891,6 +891,7 @@ func cloneDraft(draft domain.DialogDraft) domain.DialogDraft {
 		webpage := *draft.WebPage
 		draft.WebPage = &webpage
 	}
+	draft.RichMessage = cloneRichMessage(draft.RichMessage)
 	return draft
 }
 
@@ -927,10 +928,53 @@ func dialogHashWithDrafts(base int64, dialogs []domain.Dialog) int64 {
 		if d.Draft.WebPage != nil {
 			_, _ = h.Write([]byte(d.Draft.WebPage.URL))
 		}
+		writeDraftRichHash(h, buf[:], d.Draft.RichMessage)
 	}
 	return int64(h.Sum64())
 }
 
+func cloneRichMessage(m *domain.MessageRichMessage) *domain.MessageRichMessage {
+	if m == nil {
+		return nil
+	}
+	clone := *m
+	clone.Blocks = append([]byte(nil), m.Blocks...)
+	clone.Photos = append([]domain.Photo(nil), m.Photos...)
+	clone.Documents = append([]domain.Document(nil), m.Documents...)
+	return &clone
+}
+
+func writeDraftRichHash(h interface{ Write([]byte) (int, error) }, buf []byte, rich *domain.MessageRichMessage) {
+	if rich.IsZero() {
+		return
+	}
+	if rich.Rtl {
+		buf[0] = 1
+	} else {
+		buf[0] = 0
+	}
+	if rich.Part {
+		buf[1] = 1
+	} else {
+		buf[1] = 0
+	}
+	binary.LittleEndian.PutUint64(buf[2:10], uint64(len(rich.Blocks)))
+	binary.LittleEndian.PutUint64(buf[10:18], uint64(len(rich.Photos)))
+	binary.LittleEndian.PutUint64(buf[18:26], uint64(len(rich.Documents)))
+	_, _ = h.Write(buf[:26])
+	_, _ = h.Write(rich.Blocks)
+	for _, photo := range rich.Photos {
+		binary.LittleEndian.PutUint64(buf[:8], uint64(photo.ID))
+		binary.LittleEndian.PutUint64(buf[8:16], uint64(photo.AccessHash))
+		_, _ = h.Write(buf[:16])
+	}
+	for _, document := range rich.Documents {
+		binary.LittleEndian.PutUint64(buf[:8], uint64(document.ID))
+		binary.LittleEndian.PutUint64(buf[8:16], uint64(document.AccessHash))
+		_, _ = h.Write(buf[:16])
+	}
+}
+
 func mergeDialogLists(out, in domain.DialogList) domain.DialogList {
 	out.Dialogs = append(out.Dialogs, in.Dialogs...)
 	out.Messages = append(out.Messages, in.Messages...)

internal/app/help/service.go

@@ -46,9 +46,9 @@ const tdesktopClient = "tdesktop"
 //     隐身模式本地 UI/乐观状态用的时间常量，与当前 bounded stealth update stub 保持一致。
 //   - aicompose_tone_* 与 domain/app/ai 默认值一致：TDesktop/DrKLO 创建/预览 tone 时
 //     直接读取这些 key 做本地输入限制和示例数量。
-const tdesktopDefaultAppConfigBase = `{"chat_read_mark_expire_period":604800,"chat_read_mark_size_threshold":50,"pm_read_date_expire_period":604800,"quote_length_max":1024,"telegram_antispam_group_size_min":200,"telegram_antispam_user_id":"5434988373","forum_upgrade_participants_min":2,"reactions_default":{"_":"reactionEmoji","emoticon":"👍"},"reactions_uniq_max":11,"reactions_user_max_default":1,"reactions_user_max_premium":3,"reactions_in_chat_max":3,"boosts_channel_level_max":100,"upload_markup_video":true,"emojies_send_dice":["🎲","🎯","🏀","⚽","⚽️","🎳","🎰"],"premium_purchase_blocked":false,"stargifts_blocked":false,"stories_stealth_future_period":1500,"stories_stealth_past_period":300,"stories_stealth_cooldown_period":10800,"quick_replies_limit":100,"quick_reply_messages_limit":20,"business_chat_links_limit":100,"dialog_filters_enabled":true,"about_length_limit_default":70,"about_length_limit_premium":140,"caption_length_limit_default":1024,"caption_length_limit_premium":4096,"channels_limit_default":500,"channels_limit_premium":1000,"channels_public_limit_default":10,"channels_public_limit_premium":20,"dialog_filters_limit_default":10,"dialog_filters_limit_premium":20,"dialog_filters_chats_limit_default":100,"dialog_filters_chats_limit_premium":200,"dialogs_pinned_limit_default":5,"dialogs_pinned_limit_premium":10,"dialogs_folder_pinned_limit_default":100,"dialogs_folder_pinned_limit_premium":200,"saved_dialogs_pinned_limit_default":5,"saved_dialogs_pinned_limit_premium":100,"saved_gifs_limit_default":200,"saved_gifs_limit_premium":400,"stickers_faved_limit_default":5,"stickers_faved_limit_premium":10,"recommended_channels_limit_default":10,"recommended_channels_limit_premium":100,"aicompose_tone_examples_num":3,"aicompose_tone_title_length_max":12,"aicompose_tone_prompt_length_max":1024,"aicompose_tone_saved_limit_default":5,"aicompose_tone_saved_limit_premium":20,"upload_max_fileparts_default":4000,"upload_max_fileparts_premium":8000`
+const tdesktopDefaultAppConfigBase = `{"chat_read_mark_expire_period":604800,"chat_read_mark_size_threshold":50,"pm_read_date_expire_period":604800,"quote_length_max":1024,"telegram_antispam_group_size_min":200,"telegram_antispam_user_id":"5434988373","forum_upgrade_participants_min":2,"reactions_default":{"_":"reactionEmoji","emoticon":"👍"},"reactions_uniq_max":11,"reactions_user_max_default":1,"reactions_user_max_premium":3,"reactions_in_chat_max":3,"boosts_channel_level_max":100,"rich_message_posting":"enabled","upload_markup_video":true,"emojies_send_dice":["🎲","🎯","🏀","⚽","⚽️","🎳","🎰"],"premium_purchase_blocked":false,"stargifts_blocked":false,"stories_stealth_future_period":1500,"stories_stealth_past_period":300,"stories_stealth_cooldown_period":10800,"quick_replies_limit":100,"quick_reply_messages_limit":20,"business_chat_links_limit":100,"dialog_filters_enabled":true,"about_length_limit_default":70,"about_length_limit_premium":140,"caption_length_limit_default":1024,"caption_length_limit_premium":4096,"channels_limit_default":500,"channels_limit_premium":1000,"channels_public_limit_default":10,"channels_public_limit_premium":20,"dialog_filters_limit_default":10,"dialog_filters_limit_premium":20,"dialog_filters_chats_limit_default":100,"dialog_filters_chats_limit_premium":200,"dialogs_pinned_limit_default":5,"dialogs_pinned_limit_premium":10,"dialogs_folder_pinned_limit_default":100,"dialogs_folder_pinned_limit_premium":200,"saved_dialogs_pinned_limit_default":5,"saved_dialogs_pinned_limit_premium":100,"saved_gifs_limit_default":200,"saved_gifs_limit_premium":400,"stickers_faved_limit_default":5,"stickers_faved_limit_premium":10,"recommended_channels_limit_default":10,"recommended_channels_limit_premium":100,"aicompose_tone_examples_num":3,"aicompose_tone_title_length_max":12,"aicompose_tone_prompt_length_max":1024,"aicompose_tone_saved_limit_default":5,"aicompose_tone_saved_limit_premium":20,"upload_max_fileparts_default":4000,"upload_max_fileparts_premium":8000`
 
-const defaultAppConfigHash = 19 // 默认 app config 内容变更时必须递增，否则缓存端只会收到 notModified。
+const defaultAppConfigHash = 20 // 默认 app config 内容变更时必须递增，否则缓存端只会收到 notModified。
 
 // Service 提供客户端启动配置与国家区号目录。
 //

internal/app/help/service_premium_test.go

@@ -29,6 +29,9 @@ func TestAppConfigPremiumKeys(t *testing.T) {
 	if blocked, ok := decoded["stargifts_blocked"].(bool); !ok || blocked {
 		t.Fatalf("stargifts_blocked = %v, want false (DrKLO GiftSheet 据此隐藏礼物网格)", decoded["stargifts_blocked"])
 	}
+	if posting, ok := decoded["rich_message_posting"].(string); !ok || posting != "enabled" {
+		t.Fatalf("rich_message_posting = %v, want enabled (TDesktop 富文本编辑入口默认打开)", decoded["rich_message_posting"])
+	}
 	wantNumbers := map[string]float64{
 		"reactions_user_max_default":          1,
 		"reactions_user_max_premium":          3,