fix: correct DeviceInfoRaw serial-number property name

[Copilot]

DeviceInfoRaw had 'serialNumber' as a typed property, but the Roku ECP response uses the kebab-case XML tag <serial-number>. This caused a type mismatch — raw lookups via deviceInfo['serial-number'] were untyped while deviceInfo['serialNumber'] (which never exists in the response) was typed.

Change

• src/DeviceInfo.ts: Rename 'serialNumber'?: string → 'serial-number'?: string in DeviceInfoRaw, consistent with every other property in that interface.

 export interface DeviceInfoRaw {
     'udn'?: string;
-    'serialNumber'?: string;
+    'serial-number'?: string;
     'deviceId'?: string;

Note: DeviceInfo (the enhanced/camelCase variant returned when enhance: true) correctly retains serialNumber — no change needed there.

Original prompt

Problem

The DeviceInfoRaw interface in DeviceInfo.ts has an incorrect property name. It currently uses serialNumber but should be serial-number to match the actual device info format.

Task

Update the DeviceInfoRaw interface in DeviceInfo.ts:

• Change the property name from serialNumber to serial-number
• Ensure any references to this property are updated accordingly
• Verify the fix aligns with the actual Roku device info response format

The following is the prior conversation context from the user's chat exploration (may be truncated):

User: Open a pull request on roku-deploy to fix DeviceInfo.ts to fix the DeviceInfoRaw interface. it has serialNumber but it should be serial-number.

Assistant: I'll help you create a pull request to fix the DeviceInfoRaw interface in DeviceInfo.ts. Let me create a PR to change serialNumber to serial-number.

Assistant: I'm waiting for your confirmation to proceed with creating the pull request that will fix the DeviceInfoRaw interface property name from serialNumber to serial-number in DeviceInfo.ts.

This pull request was created from Copilot chat.