feat: add favorites panel to meal generator, remove redundant Another one button

- Add clickable favorites counter with expandable panel
- Render saved recipes list with remove button
- Remove duplicate 'Another one' button (Generate already covers it)
- Sync favorite button state when removing from panel

public/favicon.svg

@@ -0,0 +1,4 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
+  <rect width="32" height="32" rx="8" fill="#534AB7"/>
+  <text x="16" y="22" font-size="16" font-family="monospace" font-weight="bold" text-anchor="middle" fill="white">#</text>
+</svg>

public/manifest.json

@@ -0,0 +1,24 @@
+{
+  "name": "Randify — Random Value Generators",
+  "short_name": "Randify",
+  "description": "Simple tools for raffles, games, and everything that needs randomness.",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#09090b",
+  "theme_color": "#534AB7",
+  "orientation": "portrait-primary",
+  "scope": "/",
+  "lang": "en",
+  "icons": [
+    {
+      "src": "/icon-192.png",
+      "sizes": "192x192",
+      "type": "image/png"
+    },
+    {
+      "src": "/icon-512.png",
+      "sizes": "512x512",
+      "type": "image/png"
+    }
+  ]
+}

public/robots.txt

@@ -0,0 +1,4 @@
+User-agent: *
+Allow: /
+
+Sitemap: https://randify.pro/sitemap-index.xml

public/sw.js

@@ -0,0 +1,56 @@
+const CACHE_NAME = "randify-v1";
+
+self.addEventListener("install", (event) => {
+  self.skipWaiting();
+});
+
+self.addEventListener("activate", (event) => {
+  event.waitUntil(self.clients.claim());
+});
+
+self.addEventListener("fetch", (event) => {
+  const { request } = event;
+  const isNavigate = request.mode === "navigate";
+  const isSameOrigin = new URL(request.url).origin === self.location.origin;
+
+  if (!isSameOrigin) {
+    return;
+  }
+
+  if (isNavigate) {
+    // Network-first for HTML pages: fresh content when online,
+    // fallback to cache when offline.
+    event.respondWith(
+      fetch(request)
+        .then((response) => {
+          if (response && response.status === 200) {
+            const clone = response.clone();
+            caches.open(CACHE_NAME).then((cache) => cache.put(request, clone));
+          }
+          return response;
+        })
+        .catch(() => caches.match(request)),
+    );
+  } else {
+    // Cache-first for static assets (JS, CSS, SVG, fonts, etc.)
+    event.respondWith(
+      caches.match(request).then((cached) => {
+        if (cached) {
+          return cached;
+        }
+        return fetch(request).then((response) => {
+          if (
+            !response ||
+            response.status !== 200 ||
+            response.type !== "basic"
+          ) {
+            return response;
+          }
+          const clone = response.clone();
+          caches.open(CACHE_NAME).then((cache) => cache.put(request, clone));
+          return response;
+        });
+      }),
+    );
+  }
+});

public/yandex_dd9dad039a139021.html

@@ -0,0 +1,8 @@
+<html>
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+  </head>
+  <body>
+    Verification: dd9dad039a139021
+  </body>
+</html>