Previously we would use naive revalidators which would invalidate EVERY
SINGLE action loader every 3 seconds, resulting in several fetches. It
would also bubble fetches across the layout actions into the individual
pages.
This new approach selectively has live stores of resources which then
poll for changes on the server side and then dispatches updates to the
client via a new /events/live SSE endpoint.
In Headscale 0.28+, nodes can be registered with tag-only preauth keys
which have no associated user. This change updates the Machine type to
make user optional and adds null checks throughout the codebase where
node.user is accessed.
Fixes tag node operations (rename, add tags) that previously failed
with 'Unexpected Server Error' when accessing node.user.providerId
on nodes without a user association.
Refs: #432
* Cookies are now encrypted JWTs (GHSA-wrqq-v7qw-r5w7)
* Authentication is stored in the SQLite database (auto-migrated)
* Session logic is much cleaner