feat(web-next): resolve session user + live compliance context and rate limits

Ports the upstream web-next compliance wiring onto our auth-shell app,
adapted to the Veect collection set (auth + workspaces, no demo features):

- add a per-request createWebNextTrpcContext (A11): derives clientIp (B2),
  resolves the authenticated user from the session cookie via the auth
  feature's denylist-aware validateSession plus a role snapshot (B7), and
  threads the boot-time consent factory + DSR binding so the mounted
  consent/dsr routers are live instead of dead stubs.
- bind the production/dev-seed consent + DSR compliance bindings in
  bind-production and expose them via getComplianceBindings; kick off the
  retention purge cycle (A3).
- enforce manifest rate limits on the production path: bind
  InMemoryRateLimit seeded from the auth manifest's budgets (A4/B3) while
  dev-seed keeps the no-op limiter. Adds a regression test driving sign-in
  through the real production binder + app router.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016j8z4VHjedXDTjEDNg7qHK

pnpm-lock.yaml

@@ -228,6 +228,12 @@ importers:
       "@repo/core-cms":
         specifier: workspace:*
         version: link:../../packages/core-cms
+      "@repo/core-consent":
+        specifier: workspace:*
+        version: link:../../packages/core-consent
+      "@repo/core-dsr":
+        specifier: workspace:*
+        version: link:../../packages/core-dsr
       "@repo/core-shared":
         specifier: workspace:*
         version: link:../../packages/core-shared