Improve placeholder files for {klipper,moonraker}-includes

Add USB drive `moonraker-recover.txt` method.

Author: paxx12

docs/klipper_includes.md

@@ -54,8 +54,20 @@ aspect_ratio: 16:9
 - All `.cfg` files in the `klipper/` folder are automatically included.
 - All `.cfg` files in the `moonraker/` folder are automatically included.
 - Configuration files persist across reboots.
+- Placeholder files (`00_keep.cfg`) are automatically created in both folders with helpful comments.
+- Do not modify or remove the `00_keep.cfg` placeholder files.
 - Test changes carefully to avoid breaking the printer configuration.
 - Invalid configuration will prevent Klipper/Moonraker from starting.
-- If you break Moonraker, the printer will not connect to WiFi next time.
-  To recover, connected Ethernet adapter or rollback to Basic firmware
-  and remove the added Moonraker configs.
+
+## Recovery from Moonraker Issues
+
+If you break Moonraker with an invalid configuration, the printer will not connect to WiFi on next boot.
+
+To recover:
+
+1. Create an empty file named `moonraker-recover.txt` on a USB stick
+2. Insert the USB stick into the printer
+3. Restart the printer
+4. The Moonraker configuration folder will be backed up to `moonraker.bak`
+5. Moonraker will start with a fresh configuration
+6. Remove the USB stick and the `moonraker-recover.txt` file will be automatically deleted

overlays/enable-klipper-includes/root/etc/init.d/S55include_keeps

@@ -2,9 +2,35 @@
 
 start() {
     mkdir -p /home/lava/printer_data/config/klipper
+    cat <<EOF > /home/lava/printer_data/config/klipper/00_keep.cfg
+# Create file similar to this to enable Klipper includes
+# Do not modify nor remove this file.
+#
+# Adding config files here will be loaded on next system restart
+# and when saving via Fluidd/Mainsail.
+# You can force restart from SSH: /etc/init.d/S60klipper restart
+EOF
+
+    if [ -f /mnt/udisk/moonraker-recover.txt ]; then
+        if [ -d /home/lava/printer_data/config/moonraker ]; then
+            mkdir -p /home/lava/printer_data/config/moonraker.bak
+            mv /home/lava/printer_data/config/moonraker/* /home/lava/printer_data/config/moonraker.bak
+        fi
+        rm -f /mnt/udisk/moonraker-recover.txt
+    fi
+
     mkdir -p /home/lava/printer_data/config/moonraker
-    touch /home/lava/printer_data/config/klipper/00_keep.cfg
-    touch /home/lava/printer_data/config/moonraker/00_keep.cfg
+    cat <<EOF > /home/lava/printer_data/config/moonraker/00_keep.cfg
+# Create file similar to this to enable Moonraker includes
+# Do not modify nor remove this file.
+#
+# The config files added will be loaded on next system restart.
+# You can force restart from SSH: /etc/init.d/S61moonraker restart
+#
+# If the include casues Moonraker issues, the WiFi will not connect.
+# Create the file named "moonraker-recover.txt" on USB stick and restart printer.
+EOF
+
     chown -R lava:lava /home/lava/printer_data/config
 }
 

overlays/enable-klipper-includes/root/home/lava/klipper-config/00_keep.cfg

@@ -1,2 +1,2 @@
-# Create file similar to this to enable Klipper includes
+# Placeholder file to ensure the directory exists for Klipper includes.
 # Do not modify nor remove this file.

overlays/enable-klipper-includes/root/home/lava/moonraker-config/00_keep.cfg

@@ -1,2 +1,2 @@
-# Create file similar to this to enable Moonraker includes
+# Placeholder file to ensure the directory exists for Moonraker includes.
 # Do not modify nor remove this file.

overlays/enable-klipper-includes/root/home/lava/origin_printer_data/config/klipper/00_keep.cfg

@@ -0,0 +1,2 @@
+# Create file similar to this to enable Klipper includes
+# Do not modify nor remove this file.

overlays/enable-klipper-includes/root/home/lava/origin_printer_data/config/moonraker/00_keep.cfg

@@ -0,0 +1,2 @@
+# Create file similar to this to enable Moonraker includes
+# Do not modify nor remove this file.