Introduce `VegaCombatV2.js`, a parallel headless combat engine that simulates
individual ships (not stack aggregates) in continuous time rather than discrete
rounds. Ships have per-hull `sizeScale`, `sizeSpeedMult`, and `turnRateBase`
fields; every entity tracks its own cooldown, position, facing, and angular
momentum. Damage and movement are banked per-tick to preserve fairness.
Accompanying files:
- `VegaCombatViewV2.js` — zoomable/pannable Phaser view with parallax starfield
- `VegaCombatCamera.js` — cursor-anchored zoom + drag-to-pan (listener cleanup
on destroy to avoid stacking across battles)
- `VegaFormations.js` — formation strategy plumbing (chosen per side, not yet
read by movement/targeting)
- Hull-specific destroy audio cues and vega buildings art
Wired behind `?movsim`'s Live/V2 toggle in `VegaCombatSim.js` — the live engine
and all real player battles are untouched.
Also fixes several latent bugs discovered during the rewrite:
- Trap 26: simultaneous wipe-out now checks draw before single-side wins
- Trap 27: movement is banked (two-phase) like damage
- Trap 28: weighted-random targeting tames chaotic nearest-neighbour sensitivity
- Trap 29: fleet gap clamped to 85% world width to prevent starvation
- Trap 30: `RANGE_EPS` tolerance prevents steering-induced standoffs
See `docs/mastervega-build-plan.md` for full design notes.
