feat: scaffold initial RSS reader project with Go backend and React frontend

web/public/logo.svg

@@ -0,0 +1,12 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="100%" height="100%" fill="none">
+  <defs>
+    <linearGradient id="grad" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#38bdf8" />
+      <stop offset="100%" stop-color="#0284c7" />
+    </linearGradient>
+  </defs>
+  <rect width="24" height="24" rx="6" fill="#0f172a" />
+  <circle cx="6.5" cy="17.5" r="1.5" fill="url(#grad)" />
+  <path d="M5 11.5A7.5 7.5 0 0 1 12.5 19" stroke="url(#grad)" stroke-width="2.2" stroke-linecap="round" />
+  <path d="M5 6.5A12.5 12.5 0 0 1 17.5 19" stroke="url(#grad)" stroke-width="2.2" stroke-linecap="round" />
+</svg>

web/public/manifest.json

@@ -0,0 +1,16 @@
+{
+  "name": "RSSPipe",
+  "short_name": "RSSPipe",
+  "description": "RSS-Driven Information Gateway",
+  "start_url": "/",
+  "display": "standalone",
+  "background_color": "#0f172a",
+  "theme_color": "#0f172a",
+  "icons": [
+    {
+      "src": "/logo.svg",
+      "sizes": "192x192 512x512",
+      "type": "image/svg+xml"
+    }
+  ]
+}

web/public/sw.js

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+const CACHE_NAME = 'rsspipe-v1';
+
+self.addEventListener('install', (event) => {
+  self.skipWaiting();
+});
+
+self.addEventListener('activate', (event) => {
+  event.waitUntil(self.clients.claim());
+});
+
+self.addEventListener('fetch', (event) => {
+  // Let browser fetch normally, can cache static assets if offline
+  if (event.request.method !== 'GET') return;
+  event.respondWith(
+    fetch(event.request).catch(() => {
+      return caches.match(event.request);
+    })
+  );
+});