v0.11.1 — Reliable agent updates

Agent updates now install the newest published stable release immediately, bypassing mise's release-age delay and refreshing its remote-version cache. If you already have a newer version installed, Update keeps it and explains why. Repeated updates of a healthy current install report that it is already up to date.

This also protects agents that updated themselves in place, verifies the executable's version before accepting an install, and rolls back selection on a mismatch. Toolchain, source-control, and added-tool updates retain newer installed versions too. Deliberately selecting a specific older version remains supported.

Includes T3 Code 0.0.45, the current stable release at publication.

Images for Linux amd64 and arm64:

• Browser: ghcr.io/dizys/t3code-docker:0.11.1 or :0.11.1-browser
• Core: ghcr.io/dizys/t3code-docker:0.11.1-core
• The latest, browser, full, core, and slim tags point to this release.

Each platform image passed its smoke tests; both amd64 variants passed the real agent lifecycle tests before publication. Release manifests were verified against those tested image digests.

Changes: #19

Validation: https://github.com/dizys/t3code-docker/actions/runs/37852507562

Full changelog: v0.11.0...v0.11.1