Registers a minimal import_token entry for the existing Zed IDE keychain-import
provider so getProvider("zed") no longer throws "Unknown provider: zed" when the
UI probes the OAuth capability endpoint; generateAuthData returns { supported: false }.
Test runner fix: the regression test imported from "vitest" but lives in tests/unit/
(node:test territory, outside the vitest include globs) — it ran in no runner. Converted
to node:test + node:assert so it actually executes (8/8 green).
Co-authored-by: diegosouzapw <diegosouza.pw@gmail.com>
