refactor: Remove unused log modules, enhanced log! macro

[DaLaw2]

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[Copilot]

Pull Request Overview

This PR refactors logging infrastructure by removing unused log modules and enhancing the log! macro functionality. The changes streamline error logging by replacing direct tracing::error! calls with a unified log! macro.

Key changes:

• Removed unused log modules (task, event, io, misc) that only contained placeholder entries
• Enhanced the log! macro to accept error references instead of requiring ownership
• Updated error handling throughout the codebase to use the new log! macro

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/ui/schedule_page.rs	Replaced tracing::error! calls with log! macro usage
src/ui/execution_page.rs	Replaced tracing::error! calls with log! macro usage
src/model/log/task.rs	Removed unused placeholder log module
src/model/log/mod.rs	Updated module exports to remove deleted log modules
src/model/log/misc.rs	Removed unused placeholder log module
src/model/log/io.rs	Removed unused placeholder log module
src/model/log/event.rs	Removed unused placeholder log module
src/model/error/mod.rs	Added level() method to Error enum for log macro compatibility
src/core/schedule/schedule_timer.rs	Replaced tracing::error! calls with log! macro usage
src/core/backup/backup_engine.rs	Replaced tracing::error! calls with log! macro usage
macros/src/log.rs	Enhanced log! macro to accept error references

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