refactor(*): 代码质量 - 优化前后端实现并完善协议与画布验证

backend/internal/app/cloud_agent_context_compaction_test.go

@@ -9,9 +9,9 @@ import (
 	"testing"
 
 	"gorm.io/gorm"
-	"infinite-canvas/backend/internal/agentcontext"
-	"infinite-canvas/backend/internal/model"
-	"infinite-canvas/backend/internal/repository"
+	"yingce/backend/internal/agentcontext"
+	"yingce/backend/internal/model"
+	"yingce/backend/internal/repository"
 )
 
 // saveCloudAgentCompactionState 用真实保存路径持久化运行状态（消息、事件与检查点同事务），