wg set updates WireGuard peer state but does not add kernel routes —
unlike wg-quick. Without ip route add, traffic to a remote cell's
vpn_subnet is routed via the default gateway (internet) instead of wg0,
causing all cross-cell pushes to time out with HTTP 000.
- add_cell_peer() now calls _ensure_cell_route(vpn_subnet) after
writing the peer config and running _syncconf
- _ensure_cell_route() runs docker exec cell-wireguard ip route add
(idempotent, non-fatal); no-op inside test dirs
- sync_cell_routes() parses wg0.conf at startup to re-add any routes
lost across container restarts; called from _apply_startup_enforcement
- 5 new unit tests covering both normal and test-dir no-op paths
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
roof
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