Twitter (syndication + auth GraphQL) mapped every non-2xx to NotFound,
killing retries on 429/5xx; bsky never checked status; pixiv network
errors arrived wrapped in PixivError and were excluded from the retry
loop. New FetchError::Transient covers 429/5xx from all sites, the
retry loop now also retries Pixiv errors, and 404/410 stay permanent.
Apply rustfmt to the 11 files that had drifted (86 hunks): x-media
site modules (bsky/pixiv/twitter) and xmedia-bot (config/main/
photo/send). Formatting only - no semantic changes; full test suite
still green.
Replace display_text_range slicing with FxEmbed-style content matching:
expand mapped t.co links to their real URLs (dropping internal
x.com/i/web/status pages), then strip every leftover t.co short link
(appended media link, unmapped links).
The old code cut by display_text_range, whose index unit differs per
endpoint (UTF-16 on the syndication endpoint, code points in the
GraphQL fallback), so slicing by either unit left a partial
"https://t." caption tail on the other path. Content matching is
unit-agnostic and also keeps user-posted/quote links at the end of
the text that the trailing cut previously dropped.