Add author auth, forking, tags, and stats tracking

Introduce token-based author authentication (register/verify API),
   skill forking with EditGate protection, tag metadata on skills,
   and download/push stats. Enhanced push scripts with token auth
   and per-skill filtering. Updated UI with stats, tags, and
   author info on skill cards.

dist/server/pages/api/auth/verify.astro.mjs

@@ -0,0 +1,40 @@
+import { v as verifyToken } from '../../../chunks/tokens_CAzj9Aj8.mjs';
+export { renderers } from '../../../renderers.mjs';
+
+const POST = async ({ request }) => {
+  let body;
+  try {
+    body = await request.json();
+  } catch {
+    return new Response(JSON.stringify({ error: "Invalid JSON" }), {
+      status: 400,
+      headers: { "Content-Type": "application/json" }
+    });
+  }
+  const { email, token } = body;
+  if (!email || !token) {
+    return new Response(JSON.stringify({ error: "email and token are required" }), {
+      status: 400,
+      headers: { "Content-Type": "application/json" }
+    });
+  }
+  const valid = await verifyToken(email, token);
+  if (!valid) {
+    return new Response(JSON.stringify({ error: "Invalid token" }), {
+      status: 403,
+      headers: { "Content-Type": "application/json" }
+    });
+  }
+  return new Response(JSON.stringify({ ok: true }), {
+    headers: { "Content-Type": "application/json" }
+  });
+};
+
+const _page = /*#__PURE__*/Object.freeze(/*#__PURE__*/Object.defineProperty({
+  __proto__: null,
+  POST
+}, Symbol.toStringTag, { value: 'Module' }));
+
+const page = () => _page;
+
+export { page };