jwt.verify does an exact string match on the issuer. Providers like
Authentik include a trailing slash in the id_token iss claim while the
configured issuer is already normalized (no trailing slash), causing
every login attempt to fail with jwt issuer invalid.
Move the issuer check out of jwt.verify options and apply the same
trailing-slash normalization used in the discovery doc validation.
Also adds OIDC-SVC-033–036 unit tests covering exact match, trailing
slash, wrong issuer, and wrong audience cases.
Closes#834
Adds new and expanded test suites across client and server to cover the
OAuth 2.1 scope system, MCP session manager, collab service, unified
memories helpers, OIDC service, budget slice, and OAuth authorize page.
Also extends SonarQube coverage exclusions to include bootstrapping files
(migrations, scheduler, main.tsx, types.ts) that are not meaningfully
testable.