Picks up testdata/html files that were previously skipped by
TestRefreshFixtures because their optional env vars were unset:
gallery_page_last, search_results, note_view, plus a fresh
submission.html / gallery_page1 captured against the right targets.
Re-captures testdata/html/*.html against the live site with valid
session cookies; the previous user.html was the logged-out interstitial,
which broke TestParseUser_RealFixture entirely. Bumps the expected
Stats.Views in that test to match the new fixture.
FA renders its species/character/artist/type system tags as tag-block
anchors with a data-tag-name carrying a single-letter prefix
(s_/c_/a_-u_/t_) and a sibling tag-invalid span instead of a /search/
link. The existing keyword pass skips them, so they were lost.
Adds a Submission.CategorizedTags field exposing the four buckets with
the prefix stripped, plus an examples/categorized_tags runnable demo.
