ProjectZomboidLog (abstract): extends AnalysableLog, implements
DetectableLogInterface. Centralises the PZ timestamp format
('d-m-y H:i:s.v') and UTC default timezone, plus a makePatternParser()
helper so concrete subclasses only specify their line regex and capture
group names. ProjectZomboidEventLog (abstract): marker base for the ten
single-line structured PZ logs, distinct from the multi-line
ProjectZomboidServerLog. Concrete subclasses follow.
