fix: Z35 map Chinese display names to stable physical DB names

Keep Chinese on Binding for UI; Agents use user_{id} or db{hash}; sanitize on attach/heal/publish.

Co-authored-by: Cursor <cursoragent@cursor.com>

platform/internal/logic/applogic/yuheng_ticket.go

@@ -8,6 +8,7 @@ import (
 	"aijianzhan/platform/internal/agentstore"
 	"aijianzhan/platform/internal/authx"
 	"aijianzhan/platform/internal/dbsync"
+	"aijianzhan/platform/internal/schema"
 	"aijianzhan/platform/internal/types"
 	"aijianzhan/platform/internal/userstore"
 	"aijianzhan/platform/internal/yuhticket"
@@ -191,12 +192,12 @@ func (l *AuthLogic) bindUserHostSync(u *userstore.User, hostKey, name, localID,
 		return nil, "", fmt.Errorf("host_key 已绑定其它公司")
 	}
 	online := fmt.Sprintf("%s_u%d", dbsync.ResolveOnlineDBID("", ch.ID), u.UserID)
-	// DisplayName 可中文；Postgres 物理库名必须 [a-z][a-z0-9_]{1,47}（Z35）
+	// 中文昵称可接受：写入 Binding 展示字段；物理库名映射为 user_{id} / 哈希（Z35）
 	display := strings.TrimSpace(u.DisplayName)
 	if display == "" {
 		display = fmt.Sprintf("user_%d", u.UserID)
 	}
-	dbName := fmt.Sprintf("user_%d", u.UserID)
+	dbName := schema.SafeSyncDatabaseName(display, acc.AgentID, u.UserID)
 	updated, err := l.svcCtx.Agents.AttachSyncBind(l.ctx, acc.AgentID, u.TenantID, ch.ID, online, dbName, true)
 	if err != nil {
 		return nil, "", err
@@ -215,7 +216,7 @@ func (l *AuthLogic) bindUserHostSync(u *userstore.User, hostKey, name, localID,
 		LocalDatabaseID: localID,
 		OnlineDBID:      online,
 		ChannelID:       ch.ID,
-		DatabaseName:    dbName,
+		DatabaseName:    display, // 可读名（可中文）
 		DisplayName:     display,
 		Note:            note,
 	})