Show alerts in title text.

Such as a refresh 🔄 emoji at the beginning of the title when a new version of the page is available, so tabs can signal for site updates. Give simple emoji signals for each alert,

Start by locating the frontend code that sets the page title and handles notifications when a new page version is available. Trace how alerts are represented, then verify that the title displays a simple emoji signal for each alert, including the refresh signal described in the issue.

索引モデルが issue の本文から書いたものです。