feat(cli): try confirm-or-revert prefs

docs/cli_commands.md

@@ -248,6 +248,30 @@ This document provides an overview of CLI commands that can be sent to MeshCore
 
 ---
 
+#### Try a setting with automatic revert
+**Usage:**
+- `try <secs> <set-args>`
+- `try reboot <secs> <set-args>`
+- `get try`
+
+**Parameters:**
+- `secs`: Trial duration in seconds (1–604800, max 7 days)
+- `set-args`: Same arguments as `set` (e.g. `radio.rxgain off`) or `powersaving on|off`
+- `reboot`: Optional keyword before `secs`. On timeout, restore the snapshotted value and reboot (~2 s later)
+
+**Examples:**
+- `try 3600 radio.rxgain off`
+- `try reboot 3600 radio 915.0,250,11,5`
+- `set radio.rxgain off` commits the trial before timeout (cancels revert)
+
+**Notes:**
+- Up to **4** concurrent trials (`/try.json` on flash). Survives reboot; timer uses RTC `expires_at`.
+- Denied keys: `prv.key`, `password`, `guest.password`, `name`, `lat`, `lon`.
+- `set radio` / `set freq` inherit **reboot armed** on revert (reply says so). Apply still needs a manual reboot.
+- Reply forms: `OK - try Ns (reverts unless set)` or `… reboot armed` (+ `; reboot to apply` when applicable).
+
+---
+
 #### View or change this node's frequency
 **Usage:**
 - `get freq`

examples/simple_repeater/MyMesh.cpp

@@ -1290,6 +1290,8 @@ void MyMesh::loop() {
   bridge.loop();
 #endif
 
+  _cli.loop();
+
   mesh::Mesh::loop();
 
   if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {

examples/simple_room_server/MyMesh.cpp

@@ -993,6 +993,8 @@ bool MyMesh::saveFilter(ClientInfo* client) {
 }
 
 void MyMesh::loop() {
+  _cli.loop();
+
   mesh::Mesh::loop();
 
   if (millisHasNowPassed(next_push) && acl.getNumClients() > 0) {

examples/simple_sensor/SensorMesh.cpp

@@ -897,6 +897,8 @@ bool  SensorMesh::getGPS(uint8_t channel, float& lat, float& lon, float& alt) {
 }
 
 void SensorMesh::loop() {
+  _cli.loop();
+
   mesh::Mesh::loop();
 
   if (next_flood_advert && millisHasNowPassed(next_flood_advert)) {