- Introduce Colony Focus: a per-colony autopilot that auto-queues one
building/ship per turn when the queue is empty. Supports seven modes
(manual, improvement, research, fleet, growth, trade, defense) with
cost-aware affordability checks matching AI behaviour.
- Add Allocation Focus: one-time slider presets (default, research,
growth, production, military) that bulk-overwrite channel allocations.
- Refactor colony view flyout into a shared drawer supporting queue,
colony focus, and allocation focus modes with in-place swapping.
- Replace "Built here" text with hoverable building icon row and
tooltips on the colony screen.
- Add per-species audience music tracks and diplomacy music ducking when
seeking/planning an audience.
- Add sound effects for star selection, zoom in/out, and colony view
opening.
- Back-fill `focus: 'manual'` on old saves for forwards compatibility.
- Add verification tests exercising each focus mode in isolation.
