Add an image gallery to the site (Astro)

[Skalas]

Goal

Add a photo/image gallery to the site, now built on Astro (the original 2015 plan targeted a Jekyll gallery plugin, which no longer applies after the migration).

Approach

• Build the gallery natively in Astro rather than via a Jekyll plugin.
• Options to evaluate:
  • A static gallery page using Astro's <Image /> / astro:assets for optimization.
  • An off-the-shelf lightbox (e.g. PhotoSwipe / a lightbox component) for full-screen viewing.
  • Source images from src/assets or public/, with thumbnails generated at build time.

Tasks

• Decide on gallery layout (grid + lightbox).
• Create a gallery page/route.
• Wire up image optimization via astro:assets.
• Add initial set of images.

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Historical references (Jekyll, now obsolete):

• https://github.com/ggarron/jekyll-gallery-generator
• http://www.garron.me/en/blog/picture-photo-gallery-jekyll.html