feat(mission-control): add BackToMC button to all pages

- Created BackToMC component
- Added to all 27 mission control pages
- Each page now has '← Back to Mission Control' button at top
- Also pushed beta to develop to sync branches

components/mission-control/BackToMC.tsx

@@ -0,0 +1,17 @@
+"use client";
+
+import Link from "next/link";
+
+export default function BackToMC() {
+  return (
+    <div className="mb-4">
+      <Link
+        href="/mission-control"
+        className="inline-flex items-center gap-2 px-4 py-2 bg-slate-700 hover:bg-slate-600 text-white text-sm rounded-lg transition-colors"
+      >
+        <span>←</span>
+        <span>Back to Mission Control</span>
+      </Link>
+    </div>
+  );
+}