Mistake: video sitemap missing required tags

Mistake: video sitemap missing required tags

A video entry with only a thumbnail and title gets dropped. Google requires thumbnail_loc, title, description, and one of content_loc or player_loc — all four, or the video is ignored.

Fix checklist:
— ✅ <video:thumbnail_loc> present, JPG/PNG, reachable, 160x90 to 1920x1080
— ✅ <video:title> matches the on-page visible title
— ✅ <video:description> present, plain text, under 2,048 chars
— ✅ <video:content_loc> (raw file) or <video:player_loc> (embed) present and not robots-blocked
— The video must actually be visible on the page URL — not a hidden modal

Definition of done: validate one entry against the four required fields, then confirm the page renders the player above the fold.