docs: refresh per-package AGENTS.md + di-explainer to current binders

Six per-package AGENTS.md tables and the di-explainer wiring trace all
showed pre-ADR-014 binder shapes. Refreshed to the post-ADR-015
reality:

- Per-package "Public exports" tables now show the
  (config, tracer, logger, bus, queue) production signature and the
  (tracer, logger, bus, queue) dev-seed companion. auth and
  marketing-pages also list their newly-public ./di/container,
  ./di/symbols, and (marketing-pages only) ./services/mailer +
  ./services/recording-mailer subpaths.
- di-explainer's wiring trace adds the resolveEventsAndJobs* step in
  bindAll(), the (config, tracer, logger, bus, queue) binder
  signature, and the // <gen:event-handlers> / // <gen:jobs>
  injection sites.

No code change; pre-existing AGENTS.md staleness predates ADR-014 +
ADR-015 — this commit catches both up.

packages/auth/AGENTS.md

@@ -31,7 +31,10 @@ Users collection + authentication use cases (sign-in, sign-up, sign-out). Provid
 | `./ui` | Placeholder — extend here when auth gains React Query builders, never re-add to root |
 | `./api` | `authRouter` (tRPC router) |
 | `./cms` | Payload Users collection definition |
-| `./di/bind-production` | `bindProductionAuth(container, config)` — swaps mock impls for real Payload-backed ones at app boot |
+| `./di/bind-production` | `bindProductionAuth(config, tracer, logger, bus, queue)` — swaps mock impls for real Payload-backed ones at app boot |
+| `./di/bind-dev-seed` | `bindDevSeedAuth(tracer, logger, bus, queue)` — replaces the default empty mock with a populated one for dev / Storybook |
+| `./di/container` | `authContainer` — the per-feature inversify container (consumed by e2e tests + production Payload event-tasks) |
+| `./di/symbols` | `AUTH_SYMBOLS` — DI symbol registry (consumed by e2e tests + production Payload event-tasks) |
 
 ## Use-case + controller patterns