Add a '/random' route to an Obsidian Digital Garden (oleeskild digital-garden plugin + Eleventy) site that redirects visitors to a randomly chosen published note. Use when a user wants a 'surprise me' / random-note / shuffle link for their digital garden, or a destination for a random button. Installs one self-contained page (src/site/~random.njk) - no build scripts, no core edits, upstream-safe. Trigger on: add a random link, random note route, /random page, surprise me link, shuffle to a random note, random page redirect for my digital garden.