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/dusk/js/app.ts

@@ -0,0 +1,36 @@
+import "./bootstrap";
+import "./external/flowbite";
+
+import "swiper/css";
+import "swiper/css/navigation";
+import "swiper/css/pagination";
+
+import Alpine from "alpinejs";
+import Focus from "@alpinejs/focus";
+
+import ArticleReactions from "./components/ArticleReactions";
+
+import Swiper from "swiper";
+import { Navigation, Pagination } from "swiper/modules";
+
+ArticleReactions.init();
+Alpine.plugin(Focus);
+Alpine.start();
+
+Swiper.use([Navigation, Pagination]);
+
+document.addEventListener("DOMContentLoaded", function () {
+  const swiperEl = document.querySelector(".swiper");
+
+  if (swiperEl) {
+    new Swiper(swiperEl as HTMLElement, {
+      navigation: {
+        nextEl: ".swiper-button-next",
+        prevEl: ".swiper-button-prev",
+      },
+      pagination: {
+        el: ".swiper-pagination",
+      },
+    });
+  }
+});