v0.4.5 — tab title removed (Claude Code owns it)

The tab-title badge added in 0.4.2 is gone: Claude Code rewrites the terminal title every turn, so anything a plugin parks there disappears within seconds. The notification banner stays, and the channel that actually survives you looking away is the status line (/vibestretch:statusline) — exercise in green for five minutes, quiet agent-time counter after.