fix(ci): map @react-grab and element-source licenses to MIT in license audit (#1422)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: msukkari

scripts/npmLicenseMap.json

@@ -1 +1,5 @@
-{}
+{
+    "@react-grab/cli": { "old": "UNKNOWN", "new": "MIT" },
+    "@react-grab/mcp": { "old": "UNKNOWN", "new": "MIT" },
+    "element-source": { "old": "UNKNOWN", "new": "MIT" }
+}