Initial commit: dating app web frontend (Next.js)

Phone+OTP auth, staged onboarding, admin-approval-gated home screen,
and the full discovery/match/chat UI (swipe deck with drag gestures,
match modal, profile detail, filters, messages/chat) wired to the
real backend, styled after a Figma dating-app UI kit.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

public/sw.js

@@ -0,0 +1,38 @@
+const CACHE_NAME = "deldel-cache-v1";
+const APP_SHELL = ["/", "/manifest.webmanifest", "/icons/icon-192.png", "/icons/icon-512.png"];
+
+self.addEventListener("install", (event) => {
+  event.waitUntil(
+    caches.open(CACHE_NAME).then((cache) => cache.addAll(APP_SHELL)).catch(() => {})
+  );
+  self.skipWaiting();
+});
+
+self.addEventListener("activate", (event) => {
+  event.waitUntil(
+    caches
+      .keys()
+      .then((keys) =>
+        Promise.all(keys.filter((k) => k !== CACHE_NAME).map((k) => caches.delete(k)))
+      )
+  );
+  self.clients.claim();
+});
+
+// استراتژی: برای API همیشه شبکه (never cache)، برای بقیه network-first با fallback به کش
+self.addEventListener("fetch", (event) => {
+  const url = new URL(event.request.url);
+
+  if (event.request.method !== "GET") return;
+  if (url.pathname.startsWith("/api")) return;
+
+  event.respondWith(
+    fetch(event.request)
+      .then((res) => {
+        const resClone = res.clone();
+        caches.open(CACHE_NAME).then((cache) => cache.put(event.request, resClone));
+        return res;
+      })
+      .catch(() => caches.match(event.request))
+  );
+});