Switches task keys to ISO YYYY-MM-DD. They sort, so finding every day
before today is a string compare instead of re-parsing each key.
Two things worth knowing. fromKey builds from date parts rather than
parsing a bare ISO string, which gets read as UTC and lands on the wrong
day west of Greenwich. addDays goes through setDate, so it stays on the
same calendar day across a DST change instead of adding a flat 24 hours.
Groundwork before pulling logic out of App.svelte.
Vitest runs in a node environment. Nothing under test needs a DOM, because
every module takes its dependencies as arguments.
package-lock.json is tracked now and the Dockerfile installs with npm ci,
so the nightly rebuild can't quietly land on different versions.
.gitignore: .DS_Store was anchored to the root and missed nested copies,
and dist/ wasn't ignored at all.
Aculix Technologies