license: change from MIT to BUSL-1.1

fix: dedup config peers by endpoint, not node_id

fix: add rediscover_if_needed to mesh_node example

feat: add periodic peer re-discovery via rediscover_if_needed()

docs: comprehensive README with trust model, architecture, quick start

feat: production-tested mesh with Docker compose + peer discovery

feat: peer discovery + initial trust + working 3-node Docker test

feat: Docker 3-node mesh test + standalone mesh_node binary

feat: Phase 4 — MeshNode public API + re-exports

feat: Phase 3 — networking (axum server + reqwest client)

feat: Phase 2 — config + persistence

feat: Phase 1 — core logic for collaborative defense mesh