feat: prepare sellable source delivery edition

frontend/public/ssh-manager.svg

@@ -0,0 +1,17 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 128 128" role="img" aria-label="SSH Manager">
+  <defs>
+    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#0f172a" />
+      <stop offset="100%" stop-color="#164e63" />
+    </linearGradient>
+    <linearGradient id="accent" x1="0%" y1="0%" x2="100%" y2="100%">
+      <stop offset="0%" stop-color="#22d3ee" />
+      <stop offset="100%" stop-color="#67e8f9" />
+    </linearGradient>
+  </defs>
+  <rect width="128" height="128" rx="28" fill="url(#bg)" />
+  <rect x="18" y="22" width="92" height="84" rx="14" fill="#020617" stroke="#155e75" stroke-width="4" />
+  <path d="M36 48 54 64 36 80" fill="none" stroke="url(#accent)" stroke-linecap="round" stroke-linejoin="round" stroke-width="10" />
+  <path d="M64 82h28" fill="none" stroke="url(#accent)" stroke-linecap="round" stroke-width="10" />
+  <circle cx="96" cy="36" r="8" fill="#22d3ee" opacity="0.9" />
+</svg>