Remove before/after from README (now in notes tab)

Add before/after images to top of notes blog post

Move before/after images into Research Context section

Update After image URL

Fix broken images: use direct imgur .png URLs

Add before/after images to top of README

Upload research/eval-results.json

v2: Cache Atlas-style dark UI, eval metrics, simplified layout

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Upload posts/01-from-oct-classification-to-critical-region-review.md

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initial commit