Ensure network reset and new network formation works on old firmwares

[puddly]

Older firmwares without frame counter writing support are still being reset by having randomized settings written. This should not error out.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.80%. Comparing base (de71047) to head (6cd9e23).
⚠️ Report is 1 commits behind head on dev.

Additional details and impacted files

@@           Coverage Diff           @@
##              dev     #272   +/-   ##
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  Coverage   98.79%   98.80%           
=======================================
  Files           7        7           
  Lines         916      917    +1     
=======================================
+ Hits          905      906    +1     
  Misses         11       11           

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[Copilot]

Pull Request Overview

This PR ensures that network reset and new network formation work on older firmwares that don't support writing frame counters. The key change is that reset_network_info() now calls form_network(fast=True), and the write_network_info() method checks for this "fast" flag (via form_quickly in stack_specific) or a zero tx_counter to skip the unsupported firmware error.

Key changes:

• Modified reset_network_info() to call form_network(fast=True) instead of form_network()
• Updated write_network_info() to conditionally skip frame counter errors when resetting or forming new networks
• Changed exception type from ControllerException to CannotWriteNetworkSettings

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
zigpy_deconz/zigbee/application.py	Added logic to skip frame counter unsupported errors when resetting adapter or forming new network; changed exception type
tests/test_network_state.py	Expanded test coverage with additional scenarios including tx_counter variations and two new test functions for fast network formation
tests/test_application.py	Updated assertion to verify form_network is called with fast=True

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