Subscribe to aioesphomeapi close events

[puddly]

ESPHome serial proxies currently have an API gap: we do not know when API connections are no longer connected.

Requires esphome/aioesphomeapi#1853.

[codecov]

Codecov Report

❌ Patch coverage is 95.06173% with 4 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.53%. Comparing base (93591b2) to head (c685df3).

Files with missing lines	Patch %	Lines
serialx/platforms/serial_esphome.py	95.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev     #112      +/-   ##
==========================================
+ Coverage   92.47%   92.53%   +0.06%     
==========================================
  Files          22       22              
  Lines        3747     3819      +72     
==========================================
+ Hits         3465     3534      +69     
- Misses        282      285       +3     

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[Copilot]

🟡 Changes recommended

Normal teardown leaks an ESPHome close callback, and an unrelated public API signature change breaks positional callers.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Adds ESPHome API disconnect detection and propagates connection loss through serial transports.

Changes:

• Upgrades aioesphomeapi to 46.0.0.
• Subscribes sync and async ESPHome transports to connection-close events.
• Expands disconnect and lifecycle test coverage.

File summaries

File	Description
serialx/platforms/serial_esphome.py	Handles API connection-close events.
serialx/async_serial.py	Changes connection function signature.
tests/test_serial_esphome.py	Tests disconnect propagation.
tests/test_async_transports.py	Adds ESPHome close quirk handling.
tests/test_async_lifecycle.py	Adjusts lifecycle test reliability.
tests/conftest.py	Configures ESPHome fixtures and timezone warmup.
tests/common.py	Extends pair metadata and ESPHome unplug support.
pyproject.toml	Raises the ESPHome API dependency minimum.
uv.lock	Locks updated dependency versions.

Review details

• Files reviewed: 8/9 changed files
• Comments generated: 2
• Review effort level: Balanced

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