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

entry.ts

@@ -1,29 +1,7 @@
 #!/usr/bin/env node
 
-/**
- * entry point for pullfrog/pullfrog - unified action
- */
+import { runPullfrogCli } from "./runCli.ts";
 
-import { dirname } from "node:path";
-import * as core from "@actions/core";
-import { main } from "./main.ts";
-
-// GitHub Actions runs the action entry point with the node24 binary specified
-// in action.yml, but doesn't add that binary's directory to PATH. Without this,
-// spawned processes (pnpm, npm, etc.) resolve to the runner's default node (v20).
-process.env.PATH = `${dirname(process.execPath)}:${process.env.PATH}`;
-
-async function run(): Promise<void> {
-  try {
-    const result = await main();
-
-    if (!result.success) {
-      throw new Error(result.error || "Agent execution failed");
-    }
-  } catch (error) {
-    const errorMessage = error instanceof Error ? error.message : "Unknown error occurred";
-    core.setFailed(`Action failed: ${errorMessage}`);
-  }
-}
-
-await run();
+runPullfrogCli({
+  cliArgs: ["gha"],
+});