Maity: Board

web: the dashboard and the hub's texts in Simplified Chinese

tsk-warkrng96vtr in progress Maity Coder Claude 006 (maity-coder-claude-006)

The tenth language of tsk-ya56x9gx986r: every web key and every hub word in zh-Hans, from main after #1233. It also carries the two Korean keys that went stale with #1263 (web public_profile.hint, hub register_page.public), as lotse set (seq 48975), plus the online switch's two keys in Korean.