Criticall: convert leading spaces to tabs

[josephsl]

Hi,

This pull request converts leading spaces to tas throughout the ad-don source code. This is a critical change to make the add-on code comply with NVDA coding style.

Thanks.

[Copilot]

Pull request overview

This pull request converts leading spaces to tabs throughout the NVDA add-on source code to comply with NVDA coding style conventions. Beyond the primary formatting changes, the PR also introduces modern development tooling including Ruff for linting/formatting, Poetry for dependency management, pre-commit hooks, and GitHub Actions for automated code quality checks.

Changes:

• Converted all leading spaces to tabs across Python files to match NVDA coding standards
• Added Ruff configuration, Poetry dependency management, pre-commit hooks, and CI/CD workflow for code quality enforcement
• Improved code quality by removing unused imports, fixing bare except clauses, correcting operator spacing, and simplifying boolean comparisons

Reviewed changes

Copilot reviewed 20 out of 23 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
pyproject.toml	Added project metadata, Poetry configuration, and Ruff linting/formatting settings with tab indentation
poetry.lock	Added Poetry lock file with Ruff 0.5.7 dependency
.pre-commit-config.yaml	Added pre-commit hooks for ruff-format and ruff linting with auto-fix
.github/workflows/code-quality.yml	Added CI/CD workflow for automated format checking and linting
site_scons/site_tools/NVDATool/*.py	Converted indentation to tabs, fixed operator spacing in type hints
sconstruct	Converted indentation to tabs, fixed quote consistency
buildVars.py	Converted indentation to tabs, improved multiline string formatting
download_pandoc.py	Converted indentation to tabs, improved exception handling (bare except → except Exception)
addon/installTasks.py	Converted indentation to tabs, improved exception handling and multiline formatting
addon/globalPlugins/quickNotetaker/*.py	Converted indentation to tabs, removed unused imports (gui, re, sys, log, DpiScalingHelperMixin), improved boolean comparisons (== True → truthiness), fixed spacing around operators
.vscode/typings/builtins.pyi	Simplified function signatures to single-line format

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