1.1.7

- Unified the map, save, replay, AI, and local-command read paths around the
canonical snapshot model while preserving the existing save and replay
formats.

- Improved early-turn AI responsiveness and movement previews by removing
short-lived persistence isolates from frequent snapshot writes and small
save-catalog reads.

- Kept local movement previews outside persistent command work so route
feedback remains responsive while authoritative commands retain their
existing replay and snapshot guarantees.

- Made event-log offset lookup constant-cost for desktop and web saves instead
of scanning the complete command history.

- Preserved forward-compatible snapshot fields and stabilized turn timing when
older or externally extended snapshots are decoded and written again.

- Expanded parity, architecture, persistence, and performance coverage around
canonical state transitions and lightweight AI unit actions.