set default font via config

src/inc/config.mjs

@@ -30,7 +30,7 @@ const resolvePath = (defaultRel) => {
         const absStorage = path.resolve(storage);
         if (defaultRel.startsWith('public/')) {
             const sub = defaultRel.replace('public/', '');
-            if (sub === 's/emojis' || sub === 's/koepfe') {
+            if (sub === 's/emojis' || sub === 's/koepfe' || sub === 's/fonts') {
                 const storagePath = path.join(absStorage, sub.split('/').pop());
                 if (fs.existsSync(storagePath)) return path.resolve(storagePath);
                 return local;
@@ -51,6 +51,7 @@ config.paths = {
     s: path.join(base, 'public/s'),
     emojis: resolvePath('public/s/emojis'),
     koepfe: resolvePath('public/s/koepfe'),
+    fonts: resolvePath('public/s/fonts'),
     memes: resolvePath('public/memes'),
     e: resolvePath('e'),
     pending: resolvePath('pending'),

src/inc/routes/apiv2/settings.mjs

@@ -486,7 +486,7 @@ export default router => {
       // F-023 Security: Validate font against actual files on disk
       // The font value is rendered into CSS url() in header.html, so it must be a real filename
       if (font) {
-        const fontsDir = path.join(path.resolve(), 'public/s/fonts');
+        const fontsDir = cfg.paths.fonts;
         try {
           const available = (await fs.readdir(fontsDir)).filter(f => /\.(ttf|otf|woff2?)$/i.test(f));
           if (!available.includes(font)) {

src/inc/routes/static.mjs

@@ -23,6 +23,11 @@ export default (router, tpl) => {
     route: /^\/s\/koepfe\//
   });
 
+  router.static({
+    dir: cfg.paths.fonts,
+    route: /^\/s\/fonts\//
+  });
+
   router.static({
     dir: path.join(path.resolve(), 'node_modules/@ruffle-rs/ruffle'),
     route: /^\/s\/ruffle\//