feedback5: the public dev branch is marked as a development build (the owner's decision of 2026-10-06): version 0.2.0-dev (title footer, boot banner, /healthz), a README warning under the title (unstable, not for public servers, how to report, shared browser storage, no release zips), a visible 开发版 tag on the title screen (zh / en), a boot-banner warning for hosts, and tools/package.mjs refuses a dev version without --allow-dev; test/version.test.js checks all of it

public/i18n/en.json

@@ -1014,5 +1014,6 @@
   "还有 {funds} 资金未使用。休整期结束时，本回合的剩余资金将清零。确定准备就绪吗？": "You still have {funds} unspent Funds. The round's leftover Funds are cleared when the Rest Phase ends. Ready anyway?",
   "选择「{name}」的朝向": "Choose {name}'s facing",
   "选择朝向": "Choose a facing",
-  "朝向：{dir}": "Facing: {dir}"
+  "朝向：{dir}": "Facing: {dir}",
+  "开发版 · 不稳定，请勿用于公开服务器": "Development build · unstable, not for public servers"
 }