test(auth): prove email token lifecycle

Reject verification-link replay and cover real Identity token expiry, replay, email change, and custom username preservation on SQLite.

docs/audits/verification-log.md

@@ -213,3 +213,4 @@ Output was reduced to filenames and commit counts. The token artifact appears un
 | V-179 | Account-deletion real-SQLite failure/retry tests; sidecar token/cache tests; full backend; Compose validation | Repository root / `tools/summarizer` | Remove the live sidecar-cache and shared tombstone-path gaps without enabling deletion | PASS — lifecycle 6/6, backend 658/658, sidecar 23/23 and Compose config pass. Sidecar failure withholds completion/tombstone until retry; maintenance purge is token-protected; tombstones map to a separate named volume; activation defaults false | Synthetic rows/cache only; no production volume, deletion, restart, provider revocation, backup restore or retention decision | SEC-009 repository cache/storage boundary complete; production activation remains blocked |
 | V-180 | CV operation/store focused real-SQLite tests and full backend | Repository root | Keep dormant CV extraction history consistent with cancellation, deadline recovery and retry before worker claim | PASS — focused 17/17 and backend 660/660. Cancel sets the run terminal immediately, retry reopens it, deadline recovery fails it, and owner/task/subject predicates prevent unrelated updates | Synthetic rows only; no parser/model/MariaDB/production process interruption | AI-004 dormant-row consistency gap closed |
 | V-181 | AI usage meter/operation/workspace/export/deletion real-SQLite tests; EF model check; SQLite/MariaDB scripts; disposable SQLite backfill and fresh application startup; full backend | Repository root | Make Workspace and durable Strategy/CV usage owner-safe, idempotent and independent of deletable private history | PASS — focused 28/28 and backend 663/663; no pending model changes; both providers generate bounded additive DDL; SQLite backfills the synthetic legacy row exactly once; fresh runtime applies through `20260815175236_AddCrossFeatureAiUsage` and serves `/health` | Synthetic local rows only; no provider/model call, MariaDB server, production migration or worker activation. CV retains a conservative reservation and older synchronous AI paths are not yet universal | Main durable usage boundary implemented; remaining synchronous producers stay tracked under POL-001 |
+| V-182 | Real ASP.NET Identity data-protection token integration on SQLite; focused auth tests; full backend | Repository root | Close SEC-005B expiry/replay/custom-username proof without SMTP or production | PASS — valid confirmation succeeds once, replay and zero-lifetime expiry return the same generic failure, a real change-email token preserves a custom username and cannot replay; focused 39/39 and backend 666/666 | Synthetic addresses and ephemeral local data-protection keys only; no email, browser, MariaDB or production call | SEC-005B local token-state gap closed |