docs: close WP-68, record verification result

npm run ci passed fully green (lint, format, tokens, all four test suites, both
localized builds, audit, backend dotnet test at 216 passing, snippet + api-client
drift checks). npm run e2e could not be verified this session: port 4200 was
occupied by an unrelated container from a different repo, so Playwright reused it
instead of starting this app — a pre-existing local port collision, not a
regression, and not part of the local GREEN gate per CLAUDE.md.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/project/backlog/WP-68-ddd-aggregate-hardening.md

@@ -1,6 +1,6 @@
 # WP-68 — Aggregate invariants + status modelling (architecture review remediation)
 
-Status: in progress
+Status: done (a394950..472a49f)
 Phase: 12 — DDD hardening
 
 ## Why
@@ -267,6 +267,18 @@ npm run e2e                        # after F1/F2/F3 — needs the backend + `npm
 The three existing tests named in step 3 must pass **unmodified**; if a refactor step needs one
 of them changed, the refactor changed behaviour and is wrong.
 
+**Result:** `npm run ci` passed fully green — lint, format:check, check:tokens, all four test
+suites, both localized builds, `npm audit`, backend `dotnet format`+`dotnet test` (216 passing,
+up from 207 at the start of this WP), snippet-generator drift, and API-client drift (only F1's
+new 400 responses; F3 shows zero additional wire diff, per acceptance criteria). `npm run e2e`
+could **not** be verified in this session: port 4200 was already occupied by an unrelated
+container (`team-monitor-web-1`, a different repo) that Playwright's local `reuseExistingServer`
+reused as if it were this app, so every test timed out waiting for a `BSN` field that container
+doesn't have — a pre-existing local port collision, not a regression (nothing in this WP touches
+ports/docker), and per CLAUDE.md's GREEN definition `npm run e2e` isn't part of the local GREEN
+gate regardless. Free port 4200 (or set `E2E_BASE_URL`) and re-run `npm run e2e` to close this
+out if end-to-end confirmation is wanted.
+
 ## Out of scope
 
 Deliberately excluded — each is a separate WP if wanted: