docs: frontpage update (#3620)

# What does this PR do?
* Adds canonical project information and links to client SDK / k8s
operator / app examples repos to the front page
* Fixes some button rendering errors

Closes #3618  

## Test Plan
Local rebuild of the documentation server

docs/src/pages/index.js

@@ -108,6 +108,60 @@ response = client.chat.completions.create(
   );
 }
 
+function Ecosystem() {
+  return (
+    <section className={styles.ecosystem}>
+      <div className="container">
+        <div className="text--center">
+          <h2 className={styles.sectionTitle}>Llama Stack Ecosystem</h2>
+          <p className={styles.sectionDescription}>
+            Complete toolkit for building AI applications with Llama Stack
+          </p>
+        </div>
+
+        <div className="row margin-top--lg">
+          <div className="col col--4">
+            <div className={styles.ecosystemCard}>
+              <div className={styles.ecosystemIcon}>🛠️</div>
+              <h3>SDKs & Clients</h3>
+              <p>Official client libraries for multiple programming languages</p>
+              <div className={styles.linkGroup}>
+                <a href="https://github.com/llamastack/llama-stack-client-python" target="_blank" rel="noopener noreferrer">Python SDK</a>
+                <a href="https://github.com/llamastack/llama-stack-client-typescript" target="_blank" rel="noopener noreferrer">TypeScript SDK</a>
+                <a href="https://github.com/llamastack/llama-stack-client-kotlin" target="_blank" rel="noopener noreferrer">Kotlin SDK</a>
+                <a href="https://github.com/llamastack/llama-stack-client-swift" target="_blank" rel="noopener noreferrer">Swift SDK</a>
+                <a href="https://github.com/llamastack/llama-stack-client-go" target="_blank" rel="noopener noreferrer">Go SDK</a>
+              </div>
+            </div>
+          </div>
+
+          <div className="col col--4">
+            <div className={styles.ecosystemCard}>
+              <div className={styles.ecosystemIcon}>🚀</div>
+              <h3>Example Applications</h3>
+              <p>Ready-to-run examples to jumpstart your AI projects</p>
+              <div className={styles.linkGroup}>
+                <a href="https://github.com/llamastack/llama-stack-apps" target="_blank" rel="noopener noreferrer">Browse Example Apps</a>
+              </div>
+            </div>
+          </div>
+
+          <div className="col col--4">
+            <div className={styles.ecosystemCard}>
+              <div className={styles.ecosystemIcon}>☸️</div>
+              <h3>Kubernetes Operator</h3>
+              <p>Deploy and manage Llama Stack on Kubernetes clusters</p>
+              <div className={styles.linkGroup}>
+                <a href="https://github.com/llamastack/llama-stack-k8s-operator" target="_blank" rel="noopener noreferrer">K8s Operator</a>
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </section>
+  );
+}
+
 function CommunityLinks() {
   return (
     <section className={styles.community}>
@@ -156,6 +210,7 @@ export default function Home() {
       <HomepageHeader />
       <main>
         <QuickStart />
+        <Ecosystem />
         <CommunityLinks />
       </main>
     </Layout>

docs/src/pages/index.module.css

@@ -185,6 +185,67 @@
   line-height: 1.5;
 }
 
+/* Ecosystem Section */
+.ecosystem {
+  padding: 4rem 0;
+  background: var(--ifm-background-color);
+}
+
+.ecosystemCard {
+  padding: 2rem;
+  border-radius: 12px;
+  background: var(--ifm-color-gray-50);
+  border: 1px solid var(--ifm-color-gray-200);
+  text-align: center;
+  height: 100%;
+  transition: all 0.3s ease;
+}
+
+.ecosystemCard:hover {
+  transform: translateY(-4px);
+  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.1);
+  border-color: var(--ifm-color-primary-lighter);
+}
+
+.ecosystemIcon {
+  font-size: 3rem;
+  margin-bottom: 1rem;
+  display: block;
+}
+
+.ecosystemCard h3 {
+  font-size: 1.25rem;
+  font-weight: 600;
+  margin-bottom: 0.75rem;
+  color: var(--ifm-color-emphasis-800);
+}
+
+.ecosystemCard p {
+  color: var(--ifm-color-emphasis-600);
+  margin-bottom: 1.5rem;
+  line-height: 1.5;
+}
+
+.linkGroup {
+  display: flex;
+  flex-direction: column;
+  gap: 0.5rem;
+}
+
+.linkGroup a {
+  color: var(--ifm-color-primary);
+  text-decoration: none;
+  font-weight: 500;
+  padding: 0.5rem;
+  border-radius: 6px;
+  transition: all 0.2s ease;
+}
+
+.linkGroup a:hover {
+  background: var(--ifm-color-primary-lightest);
+  color: var(--ifm-color-primary-darker);
+}
+
 /* Community Section */
 .community {
   padding: 3rem 0;
@@ -211,11 +272,16 @@
   gap: 0.5rem;
   font-weight: 600;
   transition: all 0.3s ease;
+  color: var(--ifm-color-primary) !important;
+  border-color: var(--ifm-color-primary) !important;
 }
 
 .communityButton:hover {
   transform: translateY(-2px);
   box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
+  background: var(--ifm-color-primary) !important;
+  color: white !important;
+  border-color: var(--ifm-color-primary) !important;
 }
 
 .communityIcon {
@@ -258,6 +324,15 @@
     width: 200px;
     justify-content: center;
   }
+
+  .ecosystem {
+    padding: 3rem 0;
+  }
+
+  .ecosystemCard {
+    margin-bottom: 2rem;
+    padding: 1.5rem;
+  }
 }
 
 @media screen and (max-width: 768px) {
@@ -280,4 +355,12 @@
   .feature {
     padding: 0.75rem;
   }
+
+  .ecosystemCard {
+    padding: 1.25rem;
+  }
+
+  .ecosystemIcon {
+    font-size: 2.5rem;
+  }
 }