feat(deconz): add NWK_UPDATE energy scan API support

[brendan-carroll]

Summary

• add controller-level API support for NWK_UPDATE-based network energy scans
• implement deCONZ adapter handling for scan request/response mapping
• expose scanned channel mask + energy entry list consistently in controller result
• include a deCONZ driver robustness fix for TCP close handler context binding

Motivation

This enables adapter-level energy scan diagnostics required by higher-level coordinator tooling and management UIs.

Validation

• unit/integration checks on local branch for controller/deconz scan flow
• hardware-backed verification with deCONZ coordinator through Zigbee2MQTT extension path
• verified response includes per-channel energy values and channel mask

[Nerivec]

This is not "deconz-only" (actually not deconz at all).

About the feature itself, if I remember correctly, I took a stab at implementing this a while back (when refactoring ZDO stuff), but plenty of devices don't support this (at all or properly), and it can make a big mess because devices will change channel during the scan, and some devices don't change back to proper channel after... which means re-pairing would be mandatory.
Not even sure all coordinator types would support this (some might, but with special handling, not via generic ZDO request).

[github-actions]

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