refactor: rename Node page to Nodes and reorganize network page sections

- Renamed NodePage component and directory to NodesPage/nodes for consistency
- Updated all navigation links from "Node" to "Nodes" across headers and footer
- Replaced anchor tags with React Router Link components for proper SPA navigation
- Reorganized NetworkPage component order and added NetworkPros section
- Converted NetworkUsecases from horizontal slider to responsive grid layout
- Added new use cases for adaptive mesh and compute fabric
- Update

src/pages/nodes/CallToAction.tsx

@@ -0,0 +1,49 @@
+"use client";
+
+import { Container } from "@/components/Container";
+import { Button } from "@/components/Button";
+
+export function CallToAction() {
+  return (
+    <section className="relative overflow-hidden bg-[#121212]">
+      <div className="max-w-7xl bg-[#111111] mx-auto py-6 border border-t-0 border-b-0 border-gray-800"></div>
+      <div className="w-full border-t border-l border-r border-gray-800" />
+
+      <div
+        id="get-started"
+        className="relative py-18 max-w-7xl mx-auto bg-[#111111] border border-t-0 border-b-0 border-gray-800"
+      >
+        <Container className="relative">
+          <div className="mx-auto max-w-3xl text-center">
+            <h2 className="text-3xl lg:text-4xl font-medium tracking-tight text-white sm:text-4xl">
+              Join Mycelium Grid
+            </h2>
+
+            <p className="mt-6 text-lg text-gray-300">
+              Be part of a global network that powers private, distributed
+              infrastructure. Host a node, contribute resources, and earn rewards
+              while expanding the sovereign digital grid.
+            </p>
+
+            <div className="mt-10 flex flex-wrap justify-center gap-x-10 gap-y-8">
+              <div className="flex flex-col items-center text-center max-w-xs">
+                <Button to="/host" variant="solid" color="cyan" className="mt-4">
+                  Join Mycelium
+                </Button>
+              </div>
+
+              <div className="flex flex-col items-center text-center max-w-xs">
+                <Button to="/docs" variant="outline" color="white" className="mt-4">
+                  Explore docs
+                </Button>
+              </div>
+            </div>
+          </div>
+        </Container>
+      </div>
+
+      <div className="w-full border-b border-gray-800" />
+      <div className="max-w-7xl mx-auto py-6 border border-t-0 border-b-0 border-gray-800 bg-transparent" />
+    </section>
+  );
+}