Two small refactors make the handlers testable:
- extract route registration into routes() http.Handler (was inline in main)
- initDB(dsn) takes a DSN so tests use an isolated temp-file DB
loginJitter var lets tests disable the anti-timing sleep for speed.
endpoints_test.go covers the main flows via httptest + cookie jar:
register/login/headerbar, empty-then-populated feed, create requires auth,
voting (new/toggle/switch, per-user tallies), vote auth + invalid mode,
and account deletion (wrong/correct password, login fails after).
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
