mysql - fix: scheduled cleanup firing

[jaredwray]

Please check if the PR fulfills these requirements

• Followed the Contributing and Code of Conduct guidelines.
• Tests for the changes have been added (for bug fixes/features) with 100% code coverage.

What kind of change does this PR introduce? (Bug fix, feature, docs update, ...)
mysql - fix: scheduled cleanup firing

[gemini-code-assist]

Code Review

This pull request replaces the native MySQL event scheduler for deleting expired keys with an application-level, unref'd timer. This eliminates the need for special MySQL privileges. The feedback identifies a potential issue where the cleanup timer could be restarted after the adapter has been disconnected, which could lead to failed queries and resource leaks. A guard checking the disconnection state is suggested to prevent this.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (f579073) to head (755ee7f).

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #2017   +/-   ##
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  Coverage   100.00%   100.00%           
=========================================
  Files           55        55           
  Lines         4905      4935   +30     
  Branches       785       787    +2     
=========================================
+ Hits          4905      4935   +30     

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[chatgpt-codex-connector]

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