test: preserve optional-extra pytest collection

CHANGELOG.d/2.12.7-login-tsc-and-gap-baseline.md

@@ -0,0 +1,13 @@
+# Unauthenticated login no longer breaks the frontend typecheck
+
+- Login uses the existing OIDC return-URL helpers so a validated path,
+  query, and fragment survive the SSO round-trip and persist to the
+  session/local storage fallback consumed by the callback.
+- The unauthenticated shell no longer mounts Admin settings with an
+  undefined access token. That mismatch failed `tsc -b` on protected
+  `main` and on every PR that inherited the login path.
+- Restores a non-identifying product/technical gap baseline bound to the
+  current PR and issue inventory (ADR 0001). Identifying post identifiers
+  must not return to this file. The baseline now names ContextualWisdomLab
+  `.github` #1258 (pnpm 9 coverage-evidence) and #1259 (thin LineageWeave
+  hourly caller) as the org-side merge-loop repairs.