* fix(terminal): restore clickable links after returning to a worktree
Clicking a terminal link (file path, URL, term_* handle, OSC-8) does nothing after switching to another worktree and back, until the terminal is scrolled a little.
xterm's linkifier only re-runs link providers on mousemove when the hovered buffer cell changes vs its cached `_lastBufferCell`. Hiding the terminal surface fires `mouseleave`, which clears the current link but leaves that cache. On reveal the pointer returns to the same cell, so the mousemove handler short-circuits and the link is never re-established; a scroll shifts the buffer position and re-linkifies, which is the "scroll to fix" symptom.
Reset the linkifier hover-cell cache when a terminal surface is revealed (resumeTerminalVisibility) so the next mousemove re-evaluates providers. Covers all link types, including file-path links whose geometry click fallback does not compensate after reveal.
Verified in real Electron via a new e2e that fails without the reset and passes with it, for both a file-path link and a URL.
* test(terminal): prove restored links activate after reveal
09173d02d2