Add editorconfig-checker pre-commit hook to catch line-length
violations locally. Shorten docstrings in aeonview.py and
aeonview_test.py that exceeded the 80-character editorconfig limit.
Remove double-quote-string-fixer hook that conflicted with ruff-format.
Add pyright>=1.1.0 and pylint>=3.0.0 as dev dependencies. Configure
pyright for basic type checking (py3.13) and refine pylint message
disables to avoid overlap with ruff's enabled rule sets.
