v0.6.62

fix(ui): body zoom no longer pushes StatusBar off-screen

Report: "底部的欄位都不見了" — the StatusBar row along the bottom
and the Timeline event log below the track were both getting clipped
by the window.

Root cause: `body { zoom: 1.1 }` scales the layout box, and every child
that uses `h-screen` (100vh) then measures itself against the un-scaled
viewport. Result: the app's root `<div className="h-screen flex flex-col">`
became 110vh tall after zoom, so the StatusBar sat 10vh below the
window's actual bottom edge. Same story for the Timeline event log —
the track ate the visible space and pushed the log out.

Two fixes:
  - body: add `height: calc(100vh / var(--app-zoom, 1.1))`. Pre-shrunk
    body composites at exactly the viewport after zoom multiplies it back
    to 100vh, so `h-screen` children stay inside the window.
  - Timeline: replace the hardcoded 240 px detail-panel and 160/180 px
    event-log heights with vh values (45vh / 18vh / 22vh). Fixed pixels
    were the wrong choice once zoom + the +1-step hint font landed —
    they don't scale with the operator's chosen scale or window height.

Session_end events are also no longer suppressed by the housekeeping
filter — they're the anchor for the "▶ Replay entire session" button,
so hiding them meant the button was unreachable.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>