ci(githooks): add pre-commit and pre-push hooks

[hajiboy95]

Summary

This PR adds local git hooks inside the .githooks/ directory to help developers maintain strict code formatting and run tests automatically before committing or pushing changes.

Key Changes

• .githooks/pre-commit: Automatically formats the codebase using the nightly toolchain (cargo +nightly fmt --all) and stages the formatted changes.
• .githooks/pre-push: Automatically runs cargo test prior to a push and prevents the push if any tests fail.
• Executable Permissions: Preserves chmod +x file permissions for both hook scripts in the repository.

Developer Setup

Once this is merged, developers can enable these local hooks in their client by running:

git config core.hooksPath .githooks

[hajiboy95]

@acsandmann are you against hook in your Repo? If you don't want them I can close this PR