fix(plugin-api): federate workspace file mutations and trim PR scope

scripts/postinstall.mjs

@@ -1,35 +0,0 @@
-import { chmodSync, readdirSync, statSync } from "node:fs";
-import { join } from "node:path";
-
-/**
- * node-pty 1.1.0 ships macOS prebuilds with `spawn-helper` files at 644
- * instead of 755, causing `posix_spawnp failed` at runtime. This script
- * fixes permissions after install on Darwin platforms.
- */
-function fixNodePtyPermissions() {
-  if (process.platform === "win32") return;
-  const prebuildsDir = join("node_modules", "node-pty", "prebuilds");
-  let entries;
-  try {
-    entries = readdirSync(prebuildsDir, { withFileTypes: true });
-  } catch {
-    return;
-  }
-  for (const entry of entries) {
-    if (!entry.isDirectory()) continue;
-    const helper = join(prebuildsDir, entry.name, "spawn-helper");
-    let stats;
-    try {
-      stats = statSync(helper);
-    } catch {
-      continue;
-    }
-    if (!stats.isFile()) continue;
-    // 0o100 = regular file, 0o111 = owner/group/other execute
-    if ((stats.mode & 0o111) === 0) {
-      chmodSync(helper, 0o755);
-    }
-  }
-}
-
-fixNodePtyPermissions();