Migrate JavaScript to TypeScript with full type safety

- Rename all .js/.jsx files to .ts/.tsx across resources/js and theme dirs
- Add TypeScript 6.0 with strict mode, tsconfig.json
- Add type definitions for Inertia page props, Alpine.js, Turbolinks
- Update vite.config.js entries to .ts/.tsx extensions
- Update all Blade @vite() calls to match new .ts/.tsx entry points
- Add TypeScript ESLint config (replacing unused Vue plugin)
- Add @types/react, @types/react-dom, @types/lodash
- Add typecheck script and integrate into check pipeline
- Full tsc --noEmit, ESLint, and production build pass cleanly

resources/themes/atom/js/app.ts

@@ -0,0 +1,18 @@
+import "./bootstrap";
+import "./external/flowbite";
+
+import "swiper/css";
+import "swiper/css/pagination";
+
+import Alpine from "alpinejs";
+import Focus from "@alpinejs/focus";
+
+import ArticleReactions from "./components/ArticleReactions";
+import ThemeSwitcher from "./components/ThemeSwitcher";
+import AtomSliders from "./components/AtomSliders";
+
+ThemeSwitcher.init();
+ArticleReactions.init();
+AtomSliders.init();
+Alpine.plugin(Focus);
+Alpine.start();