Release 1.1.0

Active-client update safety (ADR-016, contract registry.release-manifest@1). Additive only.

• openvibe-shared/release (server): createRelease({ service }) → handler for GET /release.json (deployed commit, commit time, package versions, MIN_CLIENT_RELEASE, 24 h mixed-version window) and metaTag() for the page's own release.
• release-watch.js (browser, served at /shared/release-watch.js): on focus, visibility, reconnect and every 10 minutes, compares the page's release with /release.json. A newer release shows one Reload toast; a required release or one older than the window reloads the tab only when it is hidden or idle, no text field has focus and nothing is protected (form[data-dirty="true"], [data-ov-protected], window.OVProtected()).