Add UniFi UPS-2U-Pro device support

[jimstrang]

Summary

Add recognition and handling for the new UniFi UPS-2U-Pro, matching existing UPS-2U behavior.

Observed identifiers

A live US device reports:

type: usp
model: USPDA2B
shortname: UPSPROUS
name: UPS-2U-Pro

Ubiquiti's public device database lists:

Region	Model	Catalog shortname	Sysid
US	USPDA2B	UPS-2U-Pro-US	da2b
EU	USPDA2C	UPS-2U-Pro-EU	da2c

The device exposes one 100 Mbps internal management port, similar to the existing UPS-2U.

Current behavior

• API type usp resolves to DeviceType.Unknown.
• Product model and shortname are not recognized.
• The device may incorrectly appear eligible for iperf3 testing.
• Its internal management port may receive non-actionable port audit findings.
• No product image is available.

Proposed changes

• Map API type usp to DeviceType.SmartPower.
• Map USPDA2B and USPDA2C to UPS-2U-Pro.
• Add runtime and catalog shortname aliases, including UPSPROUS.
• Add UPS-2U-Pro to the no-iperf and power-device lists.
• Add the official Ubiquiti product icon as ups-2u-pro.png.
• Add product database, classification, and port-audit regression tests.

Acceptance criteria

• Both regional model codes display as UPS-2U-Pro.
• A usp device is classified as SmartPower.
• The UPS is excluded from LAN speed-test targets.
• Its internal management port is excluded from port-level VLAN/profile audits.
• The correct product image is displayed.
• Existing UPS-2U behavior remains unchanged.

Future per-outlet monitoring

NetworkOptimizer does not currently collect or display outlet_table telemetry. The UPS-2U-Pro exposes per-outlet voltage, current, power, power factor, and energy data.

A future feature could provide shared per-outlet monitoring for the UPS-2U-Pro, USP-PDU-Pro, and other compatible UniFi power devices. This is out of scope for initial device recognition.

Implementation availability

I have a US UPS-2U-Pro available for testing and access to its live UniFi controller payload. I can take the first pass at implementation and validate the behavior against real hardware.

[jimstrang]

After looking deeper, I may propose a follow-up robustness improvement: use the IsPowerDevice allow-list from #846 to classify known power appliances as SmartPower. Older UPS/PDU/RPS models currently inherit usw and appear as switches, requiring separate audit and iperf exceptions. Centralizing this should remove those duplicated workarounds while preserving real switches like USW-Mission-Critical.