iii/v0.24.3

## What's Changed
* feat(compose): report what a compose project did by @anthonyiscoding in https://github.com/iii-hq/iii/pull/2221
* chore(telemetry): remove Amplitude by @anthonyiscoding in https://github.com/iii-hq/iii/pull/2222
* fix(engine): release channel sockets as soon as a side leaves by @sergiofilhowz in https://github.com/iii-hq/iii/pull/2230
* website: compose::add everywhere, new AI onboarding prompt, AGENTS.md sources aligned with 0.23 by @anthonyiscoding in https://github.com/iii-hq/iii/pull/2229
* fix(compose): tie managed engine lifetime to compose by @guibeira in https://github.com/iii-hq/iii/pull/2227
* fix(compose): deliver runtime overrides through the configuration service by @guibeira in https://github.com/iii-hq/iii/pull/2231
* feat(telemetry): report harness usage, flag long sessions, and accept email by @anthonyiscoding in https://github.com/iii-hq/iii/pull/2213


**Full Changelog**: https://github.com/iii-hq/iii/compare/iii/v0.24.2...iii/v0.24.3