* lexicon: initial lexicons for video embeds in bsky app
* lexicon: fix video caption file size limit
* codegen
* appview: stub out video embed view logic
* api prerelease
* api prerelease
* lexicon: video upload/processing lexicons
* tidy
* lexicon: app.bsky.video lexicons for uploads
* codegen
* api prerelease
* appview: present video embeds on posts
* appview: snaps
* changeset
* appview: fix wiring of video url config
