feat: 添加通知微服务，支持站内通知已读状态

app/notification/rpc/internal/models/predicate/predicate.go

@@ -0,0 +1,10 @@
+// Code generated by ent, DO NOT EDIT.
+
+package predicate
+
+import (
+	"entgo.io/ent/dialect/sql"
+)
+
+// Notifications is the predicate function for notifications builders.
+type Notifications func(*sql.Selector)