release: 2.9.1: log panes wrap on a phone

Cut without asking, as the owner said on 2026-10-15, for his report of
2026-10-16 (two scroll bars over a message's Delivery log on his phone).

Log panes wrap their lines under their start instead of scrolling
sideways (216f366 design, bd21ff0 code): the Delivery log of a message,
System log, the queue's listing. go vet, go test (26 packages) and make
e2e passed on the test server for that tree. No migration, schema 11.
The inbound-upstream-result mockup and plan (5348330, 295d72e) ride
along; its code follows for 2.10.0.

CHANGELOG [2.9.1]; pins in deploy/docker-compose.yml, README and the
guide (pin, build, the sample restore message); development's "from pin"
and row 31. No tag.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CHANGELOG.md

@@ -5,6 +5,10 @@ Format follows [Keep a Changelog](https://keepachangelog.com/en/1.1.0/); version
 
 ## [Unreleased]
 
+## [2.9.1] - 2026-10-16
+
+Log panes read on a phone. No migration; schema 11.
+
 ### Fixed
 
 - **Log panes wrap their lines instead of scrolling sideways**: a phone drew