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/navigation/AGENTS.md

@@ -29,7 +29,8 @@ Header global for main site navigation. Provides the Header Payload global and t
 | `./ui` | `headerQuery` — React Query option builder |
 | `./api` | `navigationRouter` (tRPC router) |
 | `./cms` | Payload Header global definition |
-| `./di/bind-production` | `bindProductionNavigation(container, config)` |
+| `./di/bind-production` | `bindProductionNavigation(config, tracer, logger, bus, queue)` — swaps mock impls for real Payload-backed ones at app boot |
+| `./di/bind-dev-seed` | `bindDevSeedNavigation(tracer, logger, bus, queue)` — replaces the default empty mock with a populated one for dev / Storybook |
 
 ## Use-case + controller patterns