Fix log level: CLI phase suppression, case-insensitive "default" key, dynamic runtime log level#3235

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Copilot wants to merge 3 commits intomainfrom

copilot/implement-fixes-and-refactor

Commits on Mar 12, 2026

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Copilot
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Implement LogLevel fixes: DynamicLogLevelProvider, StartupLogBuffer, case-insensitive default key, CLI log level pre-parsing

Copilot
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souvikghosh04
committed
Address code review comments: remove redundant filter, fix duplicate log, use FirstOrDefault for default key

Copilot
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souvikghosh04
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