bump version to v0.3.19

Author: fudiwei

ui/src/domain/version.ts

@@ -1,3 +1,2 @@
-// .env > git tag > v0.0.0-beta
-// https://vite.dev/guide/env-and-mode.html#env-variables
+// fallback policy: .env > git tag > "v0.0.0-dev"
 export const version = import.meta.env.VITE_APP_VERSION || __APP_VERSION__ || "v0.0.0-dev";