feat(skills): integrate NVIDIA/skills as a trusted skills hub tap

NVIDIA/skills is now a default trusted tap in the Hermes Skills Hub —
discoverable, browsable, searchable, and auto-updating through the same
pipeline that already serves OpenAI, Anthropic, and HuggingFace skills.

Rebased onto current main.

website/src/pages/skills/index.tsx

@@ -163,6 +163,13 @@ const SOURCE_CONFIG: Record<
     border: "rgba(251, 191, 36, 0.2)",
     icon: "\u{1F917}",
   },
+  NVIDIA: {
+    label: "NVIDIA",
+    color: "#76b900",
+    bg: "rgba(118, 185, 0, 0.08)",
+    border: "rgba(118, 185, 0, 0.25)",
+    icon: "\u{25B6}",
+  },
   VoltAgent: {
     label: "VoltAgent",
     color: "#facc15",
@@ -207,6 +214,7 @@ const SOURCE_ORDER = [
   "Anthropic",
   "OpenAI",
   "HuggingFace",
+  "NVIDIA",
   "skills.sh",
   "ClawHub",
   "browse.sh",