feat(errors): register INVITE_ADDRESS_REQUIRED and INVITE_USERS_INVALID

[pyramation]

Summary

Registers the two codes raised by the new scope-aware provision_<scope>_user / provision_<scope>_users_bulk functions (constructive-db feat/admin-provision-users) so they classify as public/400 at the transport layer instead of internal/500:

INVITE_ADDRESS_REQUIRED  // public 400 — neither email nor phone supplied
INVITE_USERS_INVALID     // public 400 — bulk `users` payload is not a JSON array

scripts/db-error-inventory.json and registry.generated.ts were refreshed by re-running audit-db-errors.py + generate-registry.py against that constructive-db branch; the refresh also picks up a few codes that landed on constructive-db main since the last audit (PERMISSION_DENIED, ROUTE_DOMAIN_REQUIRED, HOSTNAME_CLAIMED_IN_OTHER_PLANE, DATA_PERMISSIONS_MODULE_REF_INVALID).

Link to Devin session: https://app.devin.ai/sessions/b594a9d9c24e40ec9968fef407df5af3
Open in Devin Desktop: https://app.devin.ai/desktop/session/b594a9d9c24e40ec9968fef407df5af3?variant=devin
Requested by: @pyramation

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[tenki-reviewer]

Review complete. No issues found — approved ✅.

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This PR revises the error-code definitions in the Constructive packages/errors package and refreshes the generated database error inventory that mirrors them. The review scanned the registry source and the inventory artifact across correctness, API-data, and domain-specific lenses, and cross-checked the two files for consistency. No defects were found: error codes are unique, HTTP status mappings are appropriate, and the inventory counts and classifications match the registry. The change is low-risk and safe to merge.

Files	Change
packages/errors/src/registry.ts	Adjusts public error registry definitions (codes, messages, HTTP status, class/visibility).
packages/errors/scripts/db-error-inventory.json	Regenerated DB error inventory reflecting the registry updates.

_{Reviewed commit: a7af570}