Fix review findings in @probo/skills package

Add ISC header to COMPATIBILITY.md, validate Claude marketplace
json, record access-review notes after API success, checksum npm
pack contents, trim dead package.json files entries, and mark
listUsers organization_id as required.

Signed-off-by: Cursor Agent <cursoragent@cursor.com>

Co-authored-by: Bryan FRIMIN <bryan@frimin.fr>

packages/skills/package.json

@@ -18,9 +18,6 @@
     ".agents",
     "skills",
     "commands",
-    "agents",
-    "hooks",
-    "bin",
     ".mcp.json",
     "README.md",
     "COMPATIBILITY.md"