Browser Code CI; Push and PR Validation

[harshverma27]

This is s safety net that is entirely missing from the BrowserCode repository.

I have a plan to create the above; and here's it.

I plan to run three quality gates; lint, type-check, and build, On every PR and every push to main, so nothing broken can slip through to Cloudflare Pages.

• a. LINT (Prettier format check + ESLint)
• b. TYPE CHECK (svelte-check + tsc)
• c. BUILD (Vite production build via Cloudflare adapter)

Let me know what do you think about this @alexp-sssup, if this makes sense I'll start building it.

[Ceriumin]

Ci/CD and actions are in-scope but as of right now are not strictly necessary especially due to the nature of the project.

Contributions are welcome however.