26.1.9

Full Changelog: 26.1.8...26.1.9

26.1.8

Full Changelog: 26.1.7...26.1.8

26.1.7

Full Changelog: 26.1.6...26.1.7

26.1.6

Full Changelog: 26.1.5...26.1.6

26.1.5

Full Changelog: 26.1.4...26.1.5

26.1.4

Full Changelog: 26.1.2...26.1.4

26.1.2

Full Changelog: 26.1.1...26.1.2

26.1.1

docs: supplement 26.1.1 changelog and style refinements

Record post-release doc/style notes in CHANGELOG: english default stage
names, mobile edit layout, heatmap gap restore, declarative settings API
stub, :has() removal, and !important reduction. Hoist accent red to a
global custom property, promote the overdue selector to raise specificity
without !important, and center the countdown arrived card. Drop the period
from the manifest description to match earlier releases.