Add linting, formatting, and type checking via CI and pre-commit hooks

[steadyfall]

This PR adds a bunch of improvements to help keep the codebase clean and consistent:

• Set up ESLint, Prettier, and TypeScript checks in a GitHub Actions workflow for automated code quality.
• Cleaned up and centralized all linting configs — now with rules for import order and Tailwind class sorting.
• Added Husky + lint-staged to run linting before each commit (so we catch stuff early).
• Ran the linters across the whole project to apply the new rules.
• Moved lint-staged config to its own file and disabled linting during production builds for better performance.

[nrpatel18]

Damn bro, CI linter and all. GEOOOOOOOOTABBBBBBB