Patrick Britton bacffc759c feat: proxy OG images to R2 to fix CORS on Flutter Web ... - Added S3 client, mediaBucket, imgDomain fields to LinkPreviewService - Added ProxyImageToR2 method: downloads external OG image, uploads to R2 with deterministic key (og/<sha256>.ext), replaces ImageURL with R2 path - Called ProxyImageToR2 in post_handler.go (both sync and async paths) - Refactored OfficialAccountsService to use shared LinkPreviewService instead of creating inline instances - Reordered main.go init: S3 client setup before LinkPreviewService		2026-02-09 19:34:45 -06:00
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main.go	feat: proxy OG images to R2 to fix CORS on Flutter Web	2026-02-09 19:34:45 -06:00