build: add flake8-tidy-imports to ban relative imports

[ayushm98]

Description of changes

Fixes #2334

This PR adds flake8-tidy-imports to the pre-commit flake8 hook with the --ban-relative-imports=true flag to enforce absolute imports throughout the codebase.

Changes

• Added flake8-tidy-imports>=4.10.0 as an additional dependency to the flake8 pre-commit hook
• Added --ban-relative-imports=true argument to enforce absolute imports

Why?

• Absolute imports are more explicit and easier to understand
• They avoid confusion about where modules are located
• They're more consistent across the codebase
• They help prevent circular import issues

Test plan

The pre-commit hook will now flag any relative imports (e.g., from . import foo or from .module import bar).

[github-actions]

Reviewer Checklist

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Testing, Bugs, Errors, Logs, Documentation

• Can you think of any use case in which the code does not behave as intended? Have they been tested?
• Can you think of any inputs or external events that could break the code? Is user input validated and safe? Have they been tested?
• If appropriate, are there adequate property based tests?
• If appropriate, are there adequate unit tests?
• Should any logging, debugging, tracing information be added or removed?
• Are error messages user-friendly?
• Have all documentation changes needed been made?
• Have all non-obvious changes been commented?

System Compatibility

• Are there any potential impacts on other parts of the system or backward compatibility?
• Does this change intersect with any items on our roadmap, and if so, is there a plan for fitting them together?

Quality

• Is this code of a unexpectedly high quality (Readability, Modularity, Intuitiveness)

[propel-code-bot]

Enforce absolute imports via flake8 tidy imports in pre-commit

Updates the flake8 pre-commit hook to load the flake8-tidy-imports plugin and pass --ban-relative-imports=true. This change ensures future commits are linted against relative import usage.

Key Changes

• Added --ban-relative-imports=true to the flake8 hook arguments in .pre-commit-config.yaml
• Declared flake8-tidy-imports>=4.10.0 in additional_dependencies for the flake8 pre-commit hook

Affected Areas

• .pre-commit-config.yaml

This summary was automatically generated by @propel-code-bot