chore: standardized code quality and formatting for tooling scripts

- Added `scripts/**/*.ts` to the linter and formatter inclusion list in `biome.json`.
- Replaced manual array index searches with standard `indexOf` operations.
- Cleaned up unused variables, obsolete helpers, and command-line flags.
- Applied consistent formatting and code style across tooling scripts.

biome.json

@@ -56,6 +56,7 @@
 			"packages/*/examples/**/*.ts",
 			"packages/*/scripts/**/*.ts",
 			"packages/*/*.ts",
+			"scripts/**/*.ts",
 			"!packages/natives/native/index.d.ts",
 			"!**/vendor/**/*",
 			"!**/node_modules/**/*",