* second pass adding beacons admin
* Bump protobufs submodule to merged MESHBEACON_CONFIG (PR #970)
clod helped.
* Gate MeshBeacon module config behind admin auth in PhoneAPI
The FromRadio module-config sync copied moduleConfig.mesh_beacon unconditionally. MeshBeaconConfig embeds two ChannelSettings (broadcast_offer_channel, broadcast_on_channel) that carry PSKs, so an unauthorized client could exfiltrate channel PSKs when MESHTASTIC_PHONEAPI_ACCESS_CONTROL is enabled - bypassing the redaction already applied to mqtt/network/security config.
Gate the payload copy on getAdminAuthorized(), mirroring the mqtt case; unauth clients now receive an empty MeshBeaconConfig.
clod helped
Tom
fc7043f117