Add EventBridge policy fan-out for standalone degraded mode.

Ship Lambda/EventBridge templates and a token-gated policy snapshot endpoint so agents can poll hospice, vaccination lanes, and genesis version when C2 is down, preferring EventBridge relay over 30m reconnect.

server/config.go

@@ -1,4 +1,4 @@
-package main
+package main
 
 import (
 	"encoding/json"
@@ -107,6 +107,8 @@ type ServerSettings struct {
 	ErasureLanesEnabled bool `json:"erasure_lanes_enabled"`
 	// FleetTorrentEnabled enables content-addressed shard DHT gossip across seeders (cross-subnet).
 	FleetTorrentEnabled bool `json:"fleet_torrent_enabled"`
+	PolicySnapshotToken string `json:"policy_snapshot_token,omitempty"`
+	EventBridgeRelayURL string `json:"eventbridge_relay_url,omitempty"`
 }
 
 // WebRTCMeshPolicySettings is Calibrate policy for WebRTC LAN seed spread.