Add ad-video skills (ad-creative, launch, testimonial)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VU6qqzefQ2TxgZetJ7beKU

skills-lock.json

@@ -0,0 +1,23 @@
+{
+  "version": 1,
+  "skills": {
+    "ad-creative-video": {
+      "source": "iart-ai/ad-video-skills",
+      "sourceType": "github",
+      "skillPath": "skills/ad-creative-video/SKILL.md",
+      "computedHash": "94c33e3435abd802773c4b7e6058f3d47456bc56354d87b1e6fc2b689757735d"
+    },
+    "launch-video": {
+      "source": "iart-ai/ad-video-skills",
+      "sourceType": "github",
+      "skillPath": "skills/launch-video/SKILL.md",
+      "computedHash": "a55b82d2ca76de5bb80a1217594b11d1bf1ae4485b487bcad7ab256e2f116790"
+    },
+    "testimonial-video": {
+      "source": "iart-ai/ad-video-skills",
+      "sourceType": "github",
+      "skillPath": "skills/testimonial-video/SKILL.md",
+      "computedHash": "0d71fa501ffc13fc979d4d93865785c16741c6b4041ccbb3926eaf0da0f486da"
+    }
+  }
+}