DEVEX: Add pre‑commit hooks for formatting and linting

[OSEH-svg]

Description
Developers sometimes commit code that fails pnpm lint or cargo fmt.

Goal
Enforce formatting and linting at commit time.

Tasks

1. Add a .pre-commit-config.yaml with hooks for rustfmt, cargo clippy, prettier, and eslint.
2. Install pre-commit as a dev dependency (pip install pre-commit or use a Docker image).
3. Add a CI step that runs pre-commit run --all-files to catch missing hooks.
4. Document the setup in DEVELOPMENT_SETUP.md.

Acceptance Criteria

• Commits that violate formatting are rejected locally.
• CI fails if a push contains unformatted code.

Dependencies
Depends on: None
Blocks: None

[DaddyMord]

@DaddyMord has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello Maintainer, I’d love to take ownership of this issue and submit a high-quality pull request once completed.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @DaddyMord to this issue.

[Abba073]

@Abba073 has applied to work on this issue as part of the Stellar Wave Program's 6th wave.

Hello Sir,

I came across your project and will love to have the opportunity to work on it

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Abba073 to this issue.

[drips-wave]

Congratulations, @Abba073! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 30, 2026.

🧑‍💻 @Abba073: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊