The tracker-tag lint's trailing class `[^0-9a-fA-F]` treated a non-hex
letter as a valid terminator, so it flagged hash-route fragments like
#24h / #1h (the stats-page window-selector routes) as tracker tags — four
false positives in the frontend. A real tracker tag is never immediately
followed by a letter, so widen the trailing class to [^0-9a-zA-Z]: still
catches every real tag (followed by space / punctuation / EOL) while
excluding any digit-run glued to a letter. Letter-bearing and 6-8-digit
hex stay excluded as before.
Also write theme.css's --crust fallback in six-digit form (#000 -> #000000)
to dodge the one remaining pure-numeric-short-hex residual the lint
documents. Pixel-identical colour. With both, the frontend tree
contributes zero lint hits; only the legacy backlog (Rust) remains.
Pattern + cases reviewed and approved by atlas on the issue.
d6aabcfe93