fix(ci): fix netlify deployment by building to dist

- Move from root publishing to clean `dist/` directory
- Create `scripts/build-dist.mjs` to orchestrate build and copy assets
- Update `package.json` build script
- Update `netlify.toml` to publish `dist/`
- Ignore `dist/` in `.gitignore`

Co-authored-by: PR0M3TH3AN <[email protected]>

.gitignore

@@ -10,3 +10,4 @@ css/tailwind.generated.css
 ai/reports/
 *.log
 coverage/
+dist/