feat: migrate IM identity and snowflake primary keys

server/db/mysql/user_identity.go

@@ -0,0 +1,17 @@
+//go:build mysql
+// +build mysql
+
+package mysql
+
+func withoutUserTags(update map[string]any) map[string]any {
+	if update == nil {
+		return nil
+	}
+	clean := make(map[string]any, len(update))
+	for key, value := range update {
+		if key != "Tags" && key != "tags" {
+			clean[key] = value
+		}
+	}
+	return clean
+}