feat(app): introduce Hall of Fame section and refactor UI

This commit adds the '名人堂' (Hall of Fame) feature and removes the Element Plus dependency.

- feat(content): Add Hall of Fame section with a new content collection, homepage component, and detail pages.
- refactor(join-us): Rewrite the 'Join Us' form to remove Element Plus, using native elements and Reka UI. The form is
temporarily disabled.
- feat(ui): Display cover images on News and Events cards.
- chore: Integrate Umami for web analytics.
- fix: Correct minor text issues, including graduation year in the footer.

nuxt.config.ts

@@ -4,23 +4,20 @@ import tailwindcss from "@tailwindcss/vite";
 export default defineNuxtConfig({
   compatibilityDate: "2025-07-15",
   devtools: { enabled: true },
-  modules: ["@nuxt/content", "@nuxt/image", "@nuxt/ui", "@element-plus/nuxt"],
+  modules: ["@nuxt/content", "@nuxt/image", "@nuxt/ui", "reka-ui/nuxt"],
   css: ["~/assets/css/main.css"],
   vite: {
     plugins: [tailwindcss()],
   },
-  elementPlus: {
-    importStyle: "scss",
-    themeChalk: {
-      $colors: {
-        primary: { base: "#fb9e3a" },
-        default: { base: "#fcef91" },
-      },
-    },
-  },
   app: {
     head: {
       title: "永平中学校友会",
+      script: [
+        {
+          src: "/analytics.js",
+          tagPosition: "head",
+        },
+      ],
     },
   },
 });