Initial OpenWrt RMM implementation

agent/package/rmm-agent/README.md

@@ -0,0 +1,35 @@
+# rmm-agent OpenWrt Package
+
+OpenWrt package skeleton for the MVP shell agent.
+
+## Buildroot Usage
+
+Copy or symlink this directory into an OpenWrt buildroot package path:
+
+```sh
+cp -R agent/package/rmm-agent /path/to/openwrt/package/rmm-agent
+cd /path/to/openwrt
+./scripts/feeds update -a
+./scripts/feeds install -a
+make menuconfig
+make package/rmm-agent/compile V=s
+```
+
+Then install the generated `.ipk` on a router:
+
+```sh
+opkg install /tmp/rmm-agent_*.ipk
+vi /etc/rmm-agent.conf
+/etc/init.d/rmm-agent enable
+/etc/init.d/rmm-agent start
+```
+
+## Installed Files
+
+- `/usr/bin/rmm-agent`
+- `/etc/init.d/rmm-agent`
+- `/etc/rmm-agent.conf`
+
+## Maintainer Note
+
+The package currently vendors a copy of `agent/openwrt/rmm-agent.sh` into `files/usr/bin/rmm-agent` because OpenWrt package builds expect package-local files. Keep both files in sync until a small sync script is added.