2026-05-19: Player character tracking

Changelog

• added player character history tracking for #6
• refactored events & API
• small fixes

Update notes

• there is a new config parameter PBC.TrackPlayerCharacter which should be enabled if you want to start tracking the history of the character you are playing as
• if you wish to populate the public history for that character there's also now a new tool tools/pbc_copy_history.sh
• the character you're playing as still won't react to events, but you can trigger a response by calling .chars trigger <char_name> command