Implements complete SwarmBot formation-based combat strategy in AssemblyScript:
- JSON parsing for game config and state
- Tight cohesion (radius=3) movement with circular mean center-of-mass
- Enemy-seeking behavior with engagement bonuses
- Toroidal distance calculations
Builds to 27KB swarm.wasm (AssemblyScript produces compact binaries vs
Go's ~12MB). Build script now copies to dist/.
Closes: bf-2a7w
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
