* chore: init email api update

* refactor: improve error message

* feat(webhooks): add validate enrolled webhook method

* test: add `getStatusError` tests

* test(webhooks): add requestId error test

* refactor(sub-accounts): create now requires a company name parameter

Sub-account creation now requires a company name parameter, validated to be 3-128 characters. Documentation, types, implementation, and tests have been updated to support and verify this change.

* chore: add missing period

* feat(sub-accounts): add `getLimit` method

* docs: update roadmap

* feat(sub-accounts): add `setLimit` method

* docs(sub-accounts): move important note to main title

* feat(sub-accounts): add `deleteLimit` method

* feat(sub-accounts): add `getUsage` method

* chore: adjust

* chore: remove mirror publish

* chore(sub-accounts): add get usage playground file

* feat: metrics module + `engagement` method

* chore: update roadmap

* refactor(types): add missing types + adjust types

* docs: move metrics module after sub-accounts

* docs: mention error handling

* fix(sub-accounts): add missing export types

* feat(metrics): add `performance` method

* docs: update docs

* docs: add performance to metrics sidebar list

* docs(metrics): update options description

* feat(metrics): add `recipientBehaviour` method

* chore: lint spaces

* feat(metrics): add `volume` method

* chore: sort by modules

* feat(metrics): add `usage` method

* docs(service): add report example

* docs(metrics): add usage to sidebar

* chore: sort by modules

* feat: add suppressions module

* feat(emails): add send `campaignId` + `transactional` options

* chore: add webhook max length

* chore: remove the unnecessary empty line

* chore: maintain suppression emoji consistency

* chore: remove extra asterisk