The /web/ prefix predated the /api/ split; today it just clutters every URL
without disambiguating anything. All 16 browser routes move to the apex
(/cases, /login, /magic, /events, /audio/...). The 6 /api/* routes are
unchanged. A new /->>/cases redirect closes the apex 404.
The open-redirect guard in magic.rs and case_actions.rs flips from a
positive whitelist (starts_with("/web/")) to a deny-list: same-origin path,
not protocol-relative, not under /api/, no \. The /api/ exclusion is now
load-bearing and covered by tests.
Pre-production: no transition redirects.
This commit introduces a new magic link authentication flow.
The desktop client can now request a temporary, one-time-use token from
the server.
This token is then used to open a URL in the system browser, which
redirects to the server.
The server consumes the token, installs a regular web session, and
redirects the user
Brummel