Every redeploy currently changes the nix store path serving swarm-ui's
JS/CSS but never the URL the browser requested (main.js, main.css,
theme.css, swarm-ui.css are all fixed filenames) -- so a browser can get
stuck serving yesterday's bundle after a deploy until someone clears the
cache by hand.
build.mjs now hashes main.tsx's JS bundle + its companion CSS output,
plus theme.css and swarm-ui.css, via esbuild's own metafile (not a
guessed hash algorithm), and rewrites the real URLs into index.html and
sw.js after the build.
colors.css deliberately stays unhashed: nix/host-modules/swarm-ui.nix's
stylix theming swaps that exact fixed path via an `= /static/colors.css`
nginx location override with no npm/esbuild rebuild involved. Hashing it
would silently break that swap on a themed host.
sw.js's CACHE_VERSION is now derived from the real hashed URLs instead of
a hand-bumped literal, so any shell-asset change gets a fresh cache name
and the SW's own activate-time sweep evicts the previous one in full --
fulfilling a promise its own prior comment already made.
Scope: swarm-ui only, per mara's call on hyperhive#4283 ("this is about
swarm ui - everything else will eventually migrate over"). dashboard and
agent are untouched.