fix push-to-action: use CLI direct invocation for token acquisition

the inline `node -e` + `TOKEN=$(...)` approach broke because
`core.getIDToken()` in @actions/core writes `::debug::` and
`::add-mask::` to stdout, polluting the captured value.

`node cli.ts gha token` uses `core.setOutput()` which writes to
the $GITHUB_OUTPUT file instead of stdout.

Made-with: Cursor

action.yml

@@ -35,8 +35,8 @@ outputs:
 
 runs:
   using: "node24"
-  main: "entry"
-  post: "post"
+  main: "entry.ts"
+  post: "post.ts"
   post-if: "failure() || cancelled()"
 
 branding: