refactor: shorten model and table prefixes

backend/internal/logic/projects/ownership.go

@@ -7,8 +7,8 @@ import (
 
 // FindOwnedProject 同时按 owner_id 与公开 identity 查询，防止仅凭可猜测标识越权访问项目。
 // 内部自增 ID 只在通过所有权校验后供关联查询使用，不进入 API 契约。
-func FindOwnedProject(userID uint, identity string) (*models.SenlinAgentProject, error) {
-	var project models.SenlinAgentProject
+func FindOwnedProject(userID uint, identity string) (*models.SaProject, error) {
+	var project models.SaProject
 	result := models.DBService.Where("owner_id = ? AND identity = ?", userID, identity).Limit(1).Find(&project)
 	if result.Error != nil {
 		return nil, result.Error