Convert walkthrough .mov to .mp4

.gitattributes

@@ -1 +1,2 @@
 docs/**/*.mov filter=lfs diff=lfs merge=lfs -text
+docs/**/*.mp4 filter=lfs diff=lfs merge=lfs -text

README.md

@@ -55,7 +55,7 @@ One full loop, put simply:
 
 **[See the full walkthrough, with screenshots →](docs/how-to.md)**
 
-**[Or watch the full panel walkthrough (video) →](docs/videos/panel-full-walkthrough.mov)**
+**[Or watch the full panel walkthrough (video) →](docs/videos/panel-full-walkthrough.mp4)**
 
 ## Project Structure
 

docs/how-to.md

@@ -10,7 +10,7 @@ the control panel.
 > The panel is your one window into the company. Every task, agent, message,
 > journal, and pull request is live in front of you.
 
-**Prefer video?** A [full screen-recording of the panel](videos/panel-full-walkthrough.mov)
+**Prefer video?** A [full screen-recording of the panel](videos/panel-full-walkthrough.mp4)
 walks through every page and detail end-to-end — useful as a first tour before
 diving into the screenshots below.