Refactor code structure for improved readability and maintainability

.gitignore

@@ -6,6 +6,24 @@ yarn-error.log*
 pnpm-debug.log*
 coverage/
 
+# Yarn (Berry / v2+)
+# Ignore Yarn caches and build artifacts but keep releases/plugins/sdks committed
+.yarn/cache/
+.yarn/unplugged/
+.yarn/build-state.yml
+.yarn/install-state.gz
+.yarn/patches/
+# Keep releases, plugins and sdks (commit these)
+!.yarn/releases/
+!.yarn/releases/*
+!.yarn/plugins/
+!.yarn/plugins/*
+!.yarn/sdks/
+!.yarn/sdks/*
+# Keep the PnP files committed
+!.pnp.cjs
+!.pnp.loader.mjs
+
 # Production build
 /dist/
 /build/
@@ -37,6 +55,15 @@ Thumbs.db
 .cache/
 .parcel-cache/
 *.local
+.node_repl_history
+
+# Playwright artifacts
+playwright-report/
+test-results/
+.playwright/
+
+# TypeScript
+*.tsbuildinfo
 
 # Optional: lockfiles (uncomment to ignore)
 # package-lock.json