3.13.49

3.13.49: ship the current tina4-js runtime bundle + reactive-select guidance

Refreshes the bundled tina4-js runtime (public/js/tina4js.min.js) to 1.4.1. The
shipped script-tag bundle had drifted: it predated persist (1.2.5) and the i18n
module (1.4.0), because the IIFE was never committed to the tina4-js repo, so
tina4 install tina4-js 404'd and fell back to a stale copy. Fixed in tina4-js
1.4.1 (the bundle is now tracked and built in CI); this release vendors the
current 22KB bundle so a fresh install of this framework serves persist + i18n
out of the box.

Also documents a reactive-select footgun in the bundled tina4-js skill: a select
whose options come from a reactive block loses its selection when the options
re-render if you bind .value on the select. Bind ?selected on each option
instead. No framework code change.