Fix: update app count to 92+, remove false SDK claims, fix duplicate feature entry

- AppShowcase: 76+ → 92+ (heading + stats counter)
- page.tsx: JavaScript SDK (39 methods) → REST API (Full JSON API)
- features/page.tsx: SDK → REST API, removed duplicate REST API entry
- premium docs: SDK (39 methods) → REST API & MCP Server
- pricing: SDK → REST API & MCP Server for AI assistants
- favicon updates from branding assets
Deployed live to dashcaddy.net

src/app/docs/premium/page.tsx

@@ -52,7 +52,7 @@ export default function DocsPremiumPage() {
             <tr><td>Encrypted credential storage</td><td>✓</td><td>✓</td></tr>
             <tr><td>Security Center &amp; audit logging</td><td>✓</td><td>✓</td></tr>
             <tr><td>AI Intent Router &amp; MCP Server</td><td>✓</td><td>✓</td></tr>
-            <tr><td>JavaScript SDK (39 methods)</td><td>✓</td><td>✓</td></tr>
+            <tr><td>REST API &amp; MCP Server</td><td>✓</td><td>✓</td></tr>
             <tr><td>Backup / restore &amp; Disaster Recovery</td><td>✓</td><td>✓</td></tr>
             <tr><td>Internationalization (5 languages)</td><td>✓</td><td>✓</td></tr>
             <tr><td>Plugin &amp; extension system</td><td>✓</td><td>✓</td></tr>