Prc.api

This release adds typing for the new Pea Car on the civilian team, added permanently (confirmed) as part of the 2025 April Fools.

Adds support for new set of PRC ER:LC private server API commands (`:helper` commands), including typings and built-in server command methods.

**Notable changes** since last beta release:
1. [`Vehicle.full_name` as property](https://github.com/Tycho-Systems/prc.api/commit/a8c6c30d3852b8408975d0ef1aacb89cdab76a48)
2. ⚠️ [redefine `ModCallEntry.is_acknowledged` as a method](https://github.com/Tycho-Systems/prc.api/commit/cad4434c0721578a651e5cd08a00cb6eb1fc5b05)
3. ⚠️ `JoinEntry.is_join` -> `JoinEntry.joined`
4. Added more docstrings.

**All Changes**: https://github.com/Tycho-Systems/prc.api/compare/v0.1.2...v0.2.0

Fixes a critical bug caused by a missing init script for server models.

Initial beta release of `prc.api`!