fix(build): serve favicon + all res/ icons at their referenced /public paths

The static-copy step landed the android icons at dist/public/android/ (stripBase
dropped the res/ segment), never copied public/res/apple/ or public/favicon.ico at
all, and the manifest pointed at /res/android/ — so every PWA icon, apple-touch
icon, og:image, and the favicon 404'd on the live server.

Copy all of public/res -> dist/public/res and public/favicon.ico -> dist/public/,
and point manifest.json icons at ./public/res/android/ — matching the /public/res
and /public/favicon.ico paths index.html already uses. Verified in dist/.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

vite.config.js

@@ -38,9 +38,18 @@ const copyFiles = {
       rename: { stripBase: true },
     },
     {
-      src: 'public/res/android',
+      // All of public/res/ (android + apple icons, logos, svg) → dist/public/res/,
+      // matching the /public/res/... paths used by index.html and manifest.json.
+      // (The old android-only target stripped `res/` and landed at /public/android/,
+      // so every icon 404'd — apple/ + favicon weren't copied at all.)
+      src: 'public/res',
       dest: 'public/',
-      rename: { stripBase: 2 },
+      rename: { stripBase: 1 },
+    },
+    {
+      src: 'public/favicon.ico',
+      dest: 'public/',
+      rename: { stripBase: 1 },
     },
     {
       src: 'public/locales',