feat(remotion): WhatsApp template management demo video for Meta app review

16s landscape (1920x1080): shows SquareMCP chat prompt triggering an
animated cURL call to the Business Management API creating a message
template (HEADER/BODY/FOOTER components with variables), then the right
panel renders a WhatsApp phone UI previewing the template bubble with
variable placeholders highlighted and a PENDING status badge.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

videos/remotion-demo/src/Root.tsx

@@ -12,6 +12,7 @@ import {
   SquareMCPTikTokProof,
 } from "./SquareMCPTikTok";
 import { SquareMCPWhatsApp } from "./SquareMCPWhatsApp";
+import { SquareMCPWhatsAppTemplate } from "./SquareMCPWhatsAppTemplate";
 
 export const RemotionRoot = () => {
   return (
@@ -96,6 +97,14 @@ export const RemotionRoot = () => {
         width={1920}
         height={1080}
       />
+      <Composition
+        id="SquareMCPWhatsAppTemplate"
+        component={SquareMCPWhatsAppTemplate}
+        durationInFrames={16 * 30}
+        fps={30}
+        width={1920}
+        height={1080}
+      />
     </>
   );
 };