refactor: update "Explore Docs" buttons across all pages to link to docs.projectmycelium.com

- Changed all "Explore Docs" buttons from internal links to external docs.projectmycelium.com links with target="_blank"
- Updated CloudArchitecture, CloudHeroNew, CloudIntro, GpuHero, NodeHero, StorageHero, and CallToAction components
- Added "Explore Docs" buttons to AgentHeroAlt and ComputeCapabilities components
- Updated HomeBlink, HomeSpotlight, and HomeCTA to use external docs link instead of onClick

src/pages/agents/CallToAction.tsx

@@ -67,14 +67,14 @@ export function CallToAction() {
 
               <Button
                 as="a"
-                to="https://threefold.info/mycelium_network/docs/"
+                to="https://docs.projectmycelium.com/ai-agent-framework/"
                 variant="link"
                 color="white"
                 className="inline-flex items-center gap-1.5"
                 target="_blank"
                 rel="noopener noreferrer"
               >
-                Follow Development
+                Explore Docs
                 <span aria-hidden="true">→</span>
               </Button>
             </div>