Manage MediaMesh forwarding region with saved radio2 profiles

docs/cli_commands.md

@@ -15,6 +15,10 @@ For a saved MediaMesh second profile, use `set radio2 mediamesh`
 (911.150 MHz, 250 kHz, SF7, CR 4/5, `rxtx`, automatic preamble), or
 `set radio2 mediamesh-range` for 125 kHz. These leave the primary profile
 and crossing policy unchanged. Both radio2 and `radio2.cross` default to `off`.
+On repeaters, room servers and sensors, either preset also saves an allowed
+`#mediamesh` forwarding region. `set radio2 off` or `set radio2 auto` disables
+that permission while retaining the region entry. Default/home regions,
+wildcard permissions and outgoing app scopes stay unchanged.
 See [MediaMesh presets](radio_profiles.md#mediamesh-presets).
 
 For supported Full Companions, see [Meshtext channel chat](radio_profiles.md#meshtext-channel-chat)

docs/radio_profiles.md

@@ -64,6 +64,19 @@ The RF settings match the presets documented by
 and [Wadamesh TAK](https://github.com/jade-on-mesh/wadamesh-tak/blob/main/MEDIAMESH.md).
 Nodes exchanging media need matching radio settings.
 
+On repeaters, room servers and sensors, either preset also creates and enables
+the public `#mediamesh` region for scoped flood forwarding, saving the permission
+automatically. Later RF tuple changes keep that permission. `set radio2 off` or
+`set radio2 auto` disables it but retains the region entry; selecting either
+MediaMesh preset enables it again. A full region table rejects the preset
+before changing the radio settings. Remote changes apply after the command's
+acknowledgement, alongside the profile change.
+
+This permission allows matching incoming scoped floods; it does not select the
+default scope for outgoing traffic or enable crossing between profiles.
+Default/home regions, the wildcard policy and app-selected scopes stay
+unchanged. Companions need no additional forwarding-region permission.
+
 Both leave the primary profile and `radio2.cross` unchanged. The center is
 625 kHz above a 910.525 MHz primary. Automatic preamble remains scan-aware;
 neither preset fixes it at 32 symbols. See [preamble](#preamble) for the