Use noexcept versions of filesystem

[macumber]

Use noexcept versions of filesystem exists, is_directory, is_regular_file, remove, remove_all

Fixes #828

[Copilot]

Pull Request Overview

This PR updates filesystem operations to use noexcept versions that accept an error_code parameter instead of throwing exceptions. The change improves error handling by allowing the code to handle filesystem errors gracefully rather than through exception propagation.

• Replaces throwing filesystem functions with noexcept versions that use boost::system::error_code
• Updates filesystem operations including exists, is_directory, is_regular_file, remove, and remove_all
• Maintains existing logic while improving error handling robustness

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
WorkflowController.cpp	Updates measure directory existence check and removal to use error_code
BCLMeasureDialog.cpp	Updates measure directory existence checks in folder creation logic
ScriptItem.cpp	Updates database file existence and removal operations
ScheduleFileInspectorView.cpp	Updates file existence check for schedule file validation
ResultsTabView.cpp	Updates directory existence checks for results searching
OSItem.cpp	Updates path existence check in item creation
OSDocument.cpp	Updates weather file path validation and removal operations
LocationTabView.cpp	Updates weather file removal with noexcept version
ApplyMeasureNowDialog.cpp	Updates file existence check for reload path validation
OpenStudioApp.cpp	Updates various filesystem checks including QtWebEngine path and DView validation
PathWatcher.cpp	Updates file/directory existence checks in path watching functionality