Fixes#68.
- Bar switcher and stats page get a low-contrast "wutzcalc <git-sha>"
footer at the bottom (VersionFooter component, shared).
- Admin panel gets a fuller Diagnose section: version, user agent,
screen resolution + device pixel ratio, viewport size, browser
language.
Version is the short git commit sha, baked in at build time via
vite.config.ts define (falls back to "dev" if .git is unavailable at
build time, e.g. a tarball/CI-artifact deploy) - matches how deploys
actually run (pnpm build from a git checkout, per
deploy/wutzcalc.service), but stays defensive rather than failing the
build.
pnpm --filter client typecheck and build both clean.
Closes#40.
New /stats route (client/stats.html + src/stats/), served by the same
catch-all pattern as /admin. Reuses the admin login (STATS_PUBLIC env var
on the server side decides whether it needs one at all).
Three uPlot charts (daily revenue, daily transaction count, top-5-drink
sold-qty trend) plus the same three tables Admin.tsx used to render inline
— those move here wholesale, Admin.tsx now just links to /stats instead of
fetching /admin/api/stats itself. The 'Statistik zurücksetzen' reset button
moves here too, gated on an actual admin session (checked separately from
whether /api/stats itself succeeded, since STATS_PUBLIC can make that true
for an anonymous viewer).
Chart lib is uPlot (~45kb) per mara's steer not to hand-roll this. Both
client and server build/typecheck clean; manually smoke-tested the auth
gate (401 unauthed, 200 after login) and the /stats route against a fresh
DB.
Fixes the reported /admin MIME-type / NS_ERROR_CORRUPTED_CONTENT breakage on the
Vite dev server. The proxy matched by string prefix, so '/admin' also caught
'/admin' and '/admin.html' (the page requests), forwarding them to the backend
instead of letting Vite serve its own dev-mode HTML. In dev the backend only has
a stale production build (or none) to answer with, so the page loaded referencing
hashed prod asset paths that don't exist in Vite's dev module graph — Vite's dev
server then served its SPA-fallback HTML for those asset requests instead of JS.
Narrowed the proxy to the three backend-owned endpoints under /admin
(api/login/logout) so the bare page routes go through Vite's own dev serving.
vite.config.ts hardcoded the /api, /admin, /healthz proxy targets to
http://localhost:3000 — the server's default port — so there was no
way to run dev:client against a dev:server started on a different
port (PORT=<n> pnpm dev:server) without editing the config file.
Read the port from WUTZ_SERVER_PORT (same default of 3000 as the
server's own PORT env var) and build the proxy target once.
