~anthropic/claude-sonnet-latest → B (9:1)

Side B is a substantive, tested feature change: it fixes the vote-compare preview morph to actually render the new post (previously missing), reworks edge-history sorting/legend logic with new tests, adds a chromeless fullscreen layout variant with corresponding CSS across themes, and updates docs/tests to match. Side A is a one-line unactioned note ('have index be sorted by viewcount.') appended to a seed/idea file, with no code, tests, or implementation.