luci-app-rustdesk-server: retaining configuration updates will revert the configuration

[smallprogram]

Is there an existing issue for this?

• I have searched among all existing issues (including closed issues)

screenshots or captures

No response

Actual behaviour

1. Compile the firmware using OpenWrt source code that includes the RustDesk server.
2. Flash the firmware to the device.
3. Access the OpenWrt interface.
4. Enable the RustDesk server, then save and apply the settings.
5. Ensure the RustDesk server is running.
6. Perform a firmware update while preserving configuration settings by uploading the previously compiled firmware.
7. Access the OpenWrt interface and observe that the previously enabled RustDesk server is now unchecked (disabled); it must be manually enabled again.

Expected behaviour

Retaining configuration when upgrading the firmware allows you to preserve your previous RustDesk settings.

Steps to reproduce

see Actual behaviour

Additional Information

{
        "kernel": "6.12.94",
        "hostname": "CgyyOARoute",
        "system": "Intel(R) Core(TM) i5-7500 CPU @ 3.40GHz",
        "model": "QEMU Standard PC (Q35 + ICH9, 2009)",
        "board_name": "qemu-standard-pc-q35-ich9-2009",
        "rootfs_type": "squashfs",
        "release": {
                "distribution": "OpenWrt",
                "version": "25.12-SNAPSHOT",
                "firmware_url": "https://downloads.openwrt.org/",
                "revision": "r33143-d78c0fd16d",
                "target": "x86/64",
                "description": "OpenWrt 25.12-SNAPSHOT r33143-d78c0fd16d",
                "builddate": "1786123572"
        }
}

What browsers do you see the problem on?

Chrome

Relevant log output

[efahl]

Sure enough, the uci-defaults overwrite the config on every install:

https://github.com/openwrt/luci/blob/master/applications/luci-app-rustdesk-server/root/etc/uci-defaults/50-luci-rustdesk-server

It should check for existing config prior to overwriting, like adblock-fast does here:

https://github.com/openwrt/luci/blob/master/applications/luci-app-adblock-fast/root/etc/uci-defaults/95_adblock-fast-api#L9

[smallprogram]

Sure enough, the uci-defaults overwrite the config on every install:

https://github.com/openwrt/luci/blob/master/applications/luci-app-rustdesk-server/root/etc/uci-defaults/50-luci-rustdesk-server

It should check for existing config prior to overwriting, like adblock-fast does here:

https://github.com/openwrt/luci/blob/master/applications/luci-app-adblock-fast/root/etc/uci-defaults/95_adblock-fast-api#L9

I'll see if I can submit a PR request to fix it later.