feat: Add pyproject-fmt pre-commit hook for automatic pyproject.toml formatting

[DhavalGojiya]

Description

Added the pyproject-fmt pre-commit hook to format pyproject.toml automatically on commits.
Any changes in this PR to pyproject.toml were applied by this hook.

Test Code

Run:

uv run pre-commit run pyproject-fmt --all-files
# pyproject-fmt............................................................Passed

uv sync
# Resolved 66 packages in 2ms
# Audited 45 packages in 0.94ms

Note: uv sync confirms everything is up-to-date, so changes are safe.