feat: add web route for sending WOL package to given mac addr

[tadic-luka]

Summary:

adds a new route /device/send-wol/:mac-addr to send the magic WOL package to the specified mac-addr.
Method is POST and is protected.
Internally, the url handler uses already existing function from wol.go called rpcSendWOLMagicPacket.

Useful for custom wake up scripts: example is sending HTTP request through iOS shortcut to wake up a server.

I could also add a feature to specify the name of the device set up in the WOL UI if needed.

Test plan:

calling the API with curl with valid mac addr

$ curl -X POST   http://<jetkvm-ip>/device/send-wol/xx:xx:xx:xx:xx:xx
WOL sent to xx:xx:xx:xx:xx:xx

and observing the magic packet on my laptop/PC:

$ ncat -u -l 9 -k | xxd
00000000: ffff ffff ffff d050 9978 a620 d050 9978  .......P.x. .P.x
00000010: a620 d050 9978 a620 d050 9978 a620 d050  . .P.x. .P.x. .P
00000020: 9978 a620 d050 9978 a620 d050 9978 a620  .x. .P.x. .P.x.
00000030: d050 9978 a620 d050 9978 a620 d050 9978  .P.x. .P.x. .P.x
00000040: a620 d050 9978 a620 d050 9978 a620 d050  . .P.x. .P.x. .P
00000050: 9978 a620 d050 9978 a620 d050 9978 a620  .x. .P.x. .P.x.

Calling the API with curl with invalid mac addr:

curl -X POST   http://<jetkvm-ip>/device/send-wol/22 -v
...
> POST /device/send-wol/22 HTTP/1.1
...
* Request completely sent off
< HTTP/1.1 400 Bad Request
< Content-Type: text/plain; charset=utf-8
...
Invalid mac address provided

[CLAassistant]

All committers have signed the CLA.

[IDisposable]

Other than to minor validation, this looks great! Thanks for the submission. Make sure you get the CLA agreement sorted, please.

[Copilot]

Pull Request Overview

This PR adds Wake-on-LAN (WOL) magic packet functionality to the web API, enabling remote wake-up of devices via HTTP endpoint.

• Adds a new POST endpoint /device/send-wol/:mac-addr to send WOL magic packets
• Implements the handleSendWOLMagicPacket handler to process WOL requests
• Removes an extraneous blank line in the WebRTC signal handler

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[tadic-luka]

Updated commit:

• added mac address validation
• updated author email in the commit to fix the CLA issue

[tadic-luka]

@IDisposable apologies if I am making too much notfications, still getting used to GitHub workflow.

[IDisposable]

@IDisposable apologies if I am making too much notfications,

There's no such thing as too much information ;)

still getting used to GitHub workflow.

You're rocking it!

[IDisposable]

I resolved the trivial golint issue (which directly changed your branch), make sure you FETCH/PULL to get current before doing more.

Also, for future ease on your side, I recommend not doing edits directly against the dev branch, you should create a branch for the feature/fix you're working.