- Introduce CivilizationChat.js with OPENERS, PLAYER_LINES, and REPLIES pools
for dynamic diplomacy dialogue between leaders and player.
- Add chat log panel to diplomacy screen with typing animation, scrolling,
and persistent chat history stored in state.
- All diplomatic actions (treaties, war, gifts, tech exchange) now generate
contextual chat messages.
- Add GOVT button and openGovernmentScreen() with empire wellbeing summary,
government cards showing pros/cons, and revolution mechanic.
- Allow disbanding units with warning about troops aboard transports.
- Improve combat capture: land units can capture undefended cities after
winning battle; sea/air units cannot.
- Enhance unit stack tooltips with home city display, ship cargo summary,
grouped friendly stacks, and enemy effective defense info.
- Preserve portrait emotion animations by reusing when switching leaders.
Brian Fertig
aee3352efe