docs(desktop): land final walkthrough recording

Adds the 3.6 MB take-3 walkthrough mp4 that README already references
via a poster image, and replaces the "coming in a follow-up commit"
placeholder line with a real link (poster now click-through to the
video, caption points at the same file).

Path: examples/desktop/docs/demo-shots/showcase-2026-07-18/
demo-walkthrough.mp4

No source or config changes; the shell tree from a3ca492a is byte-
identical to what it was, this commit just fills in the recording
slot the previous docs commit deferred.
This commit is contained in:
ZiyaZhang
2026-07-18 13:12:00 -07:00
parent 03827a2156
commit 69687895fa
2 changed files with 2 additions and 2 deletions