feat(logging): add configurable log levels

[murongg]

Summary

• add a persisted minimum log level setting with Debug, Info, Warn, and Error options
• filter runtime and desktop file logs using the selected level and move native command traces to Debug
• synchronize the setting across windows and include it in settings import/export with localized UI copy

Validation

• pnpm test in packages/app — 1501 tests passed
• pnpm build && pnpm typecheck:test in packages/app — passed
• pnpm test && pnpm build in apps/desktop — 149 tests passed; production build passed
• pnpm test && pnpm build in packages/shared — 62 tests passed; build passed
• cargo test in apps/desktop/src-tauri — 271 tests passed
• git diff --check — passed

Risk

• the default remains Info; verbose native command traces are intentionally hidden unless Debug is selected

Closes #648

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Project	Deployment	Actions	Updated (UTC)
markra-web	Ready	Preview	Aug 13, 2026 9:46am