Introduce an optional timeSync field and event-driven time pushes so host time is only re-applied on connect, resume-from-freeze, or large jumps while weather continues on ~1 Hz heartbeats. Added IsGameTimeFrozen detection and client buffering of latest host time; clients apply host time only when timeSync is true or when gameplay just resumed. Updated networking to read/write timeSync, adjusted F4TWorldStateSync logic (separate time vs weather send/apply paths, changed function signatures and behavior), and updated protocol/docs/changelog and fake_client logging to reflect the new field and behavior.
Add a top-level changelog.md and update documentation guidance to require and describe its use. .cursor/rules/documentation-rules.mdc: expanded description and added sections for “Changelog vs Dev Log” and “Changelog Format” with Keep a Changelog guidance and an example. .cursor/rules/project-overview.mdc: reference changelog.md and clarify that docs/dev-log.md is for milestones, testing, and discoveries. changelog.md: new file with an [Unreleased] section and an initial 0.0.1 stub (notes that docs/changelog.md was moved).
andrew