1.0.9

- Added the first version of empire stability, cohesion, and war-weariness
systems, including clearer city and empire readouts in the HUD.

- Deepened combat with point-blank ranged retaliation, counter-battery fire,
tuned damage variance, and a more distinct rifleman battlefield role.

- Improved combat previews and battle notifications so retaliation, modifiers,
and combat outcomes are easier to understand before and after an attack.

- Improved AI tactical choices around retaliation, city defense, expansion, and
long-term stability so computer players behave more consistently.

- Made multiplayer and saved-game snapshots preserve more empire state,
including stability and war-weariness data.

- Improved HUD performance by deferring detailed resource breakdown work until
it is actually opened.

- Reduced map and unit rendering overhead with incremental fog updates, cached
unit badge text, and lighter preferred unit sprite atlases.

- Tightened unit rules, production data, and upkeep handling so unit behavior is
more consistent across gameplay, AI planning, and UI previews.