v0.1.30

Staircase 0.1.30, released 2026-11-04 on @7cc328a0's word. Eighty-three previews since 0.1.29, all gated
and walked on their own pull requests; the CHANGELOG's [0.1.30] block is the user-facing record of what is
in it.

Going back: the database schema is 23 and this series migrated it three times (pre.56, pre.61, pre.79). A
build older than the one that migrated an account does not refuse - it sniffs, corrects the schema version
down and lands at the account picker, which reads as though the account were gone. The way back from
0.1.30 is 0.1.30 or newer.

No test was run on the release tree itself.