CI job improvements

[devinslick]

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Codecov Report

❌ Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
fmd_api/client.py	66.66%	1 Missing ⚠️

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[Copilot]

Pull Request Overview

This PR introduces code formatting improvements and pre-commit hooks to maintain code quality, bumps the version to 2.0.3, and refactors the CI/CD publishing workflow. The changes focus on applying Black formatting to tests and documentation, setting up automated code quality checks, and streamlining the PyPI publishing process.

• Version bump from 2.0.2 to 2.0.3 across the project
• Addition of pre-commit hooks for automated code quality enforcement
• Code formatting cleanup using Black on test files and documentation
• CI/CD workflow refinement to separate TestPyPI publishing into a manual workflow

Reviewed Changes

Copilot reviewed 7 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tests/unit/test_coverage_improvements.py	Applied Black formatting - removed trailing whitespace, fixed line spacing, and reformatted long lines
pyproject.toml	Version bumped to 2.0.3 and added pre-commit to dev dependencies
fmd_api/_version.py	Version string updated to 2.0.3
fmd_api/client.py	Applied Black formatting to multi-line statements
docs/PROPOSED_BRANCH_AND_STRUCTURE.md	Fixed trailing whitespace
docs/PROPOSAL.md	Fixed trailing whitespace and line endings
docs/MIGRATE_FROM_V1.md	Fixed trailing whitespace throughout the file
docs/HOME_ASSISTANT_REVIEW.md	Fixed trailing whitespace issues
README.md	Fixed trailing whitespace
.pre-commit-config.yaml	New file configuring pre-commit hooks for Black, flake8, mypy, and general file cleanup
.gitignore	Fixed trailing whitespace
.github/workflows/publish.yml	Removed automatic TestPyPI publishing on branch pushes; now only publishes to PyPI on main branch or releases
.github/workflows/publish-testpypi.yml	New manual workflow for TestPyPI publishing with confirmation requirement

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