优化结构

internal/data/task/provider.go

@@ -0,0 +1,10 @@
+package task
+
+import "gorm.io/gorm"
+
+// Provider is the minimal database seam required by the task tables.
+// Task persistence must not depend on the full data runtime or system repos.
+type Provider interface {
+	DB() *gorm.DB
+	DatabaseReady() bool
+}