Accent CMS v0.22.1

A bugfix release. It completes the trial-license code removal that 0.22.0
announced at the policy level, corrects how an expired legacy trial key is
reported at startup, and folds in two developer-profile fixes that no
released binary was ever affected by.

Removed

• accent license trial subcommand (f249): the code removal that the
  0.22.0 "Trial licenses" note forward-referenced. The subcommand, its
  dispatch wiring, and the TRIAL_DAYS constant are gone, and no upsell,
  startup banner, or accent license status line references trials anymore.
  Evaluation remains the free build/dev-serve tier (Policy A2) or a
  low-commitment monthly license. Previously issued kind: "trial" keys
  still validate and expire under the time-constrained (monthly/rental)
  rules -- there is no retroactive invalidation -- so a legacy trial key now
  renders as Monthly (rental).

Fixed

• Expired legacy trial key mislabelled at serve --production startup
  (f249): the expired-license nudge now branches on the owned-vs-rental
  lifecycle rather than the raw cadence claim, so a legacy trial key
  (which carries no cadence) is correctly treated as time-constrained -- it
  is reported as running as Core instead of falsely claiming perpetual
  ownership, and the spurious "Trial license active" banner is gone.
• Developer-profile only, no released-binary impact: the plugin-runtime
  fuel-cap test no longer flakes under host CPU load (b096), and ad-hoc
  single-file serving under the edition-core compile profile (media
  compiled out -- never a released build) no longer 404s sibling static
  assets (b100). Every released binary compiles media in and already
  served these correctly.

Verifying your download

curl -fsSLO https://raw.githubusercontent.com/AccentCMS/accent/main/release-signing-key.asc
gpg --import release-signing-key.asc
gpg --verify checksums-v0.22.1.txt.asc checksums-v0.22.1.txt
sha256sum -c --ignore-missing checksums-v0.22.1.txt