fix(node-runtime-compat): harden Bun spawn shim

script/patch-node-require-shim.ts

@@ -0,0 +1,27 @@
+#!/usr/bin/env bun
+
+import { readFileSync, writeFileSync } from "node:fs"
+import { dirname, join } from "node:path"
+import { fileURLToPath } from "node:url"
+
+const SCRIPT_DIR = dirname(fileURLToPath(import.meta.url))
+const DIST_PATH = join(SCRIPT_DIR, "..", "dist", "index.js")
+const IMPORT_LINE = 'import { createRequire as __omoCreateRequire } from "node:module";'
+const BUN_REQUIRE_LINE = "var __require = import.meta.require;"
+const NODE_SAFE_REQUIRE_LINE = 'var __require = typeof import.meta.require === "function" ? import.meta.require : __omoCreateRequire(import.meta.url);'
+
+const original = readFileSync(DIST_PATH, "utf-8")
+
+if (original.includes(NODE_SAFE_REQUIRE_LINE)) {
+  console.log("Node/Electron require shim already present in dist/index.js, skipping.")
+  process.exit(0)
+}
+
+if (!original.includes(BUN_REQUIRE_LINE)) {
+  throw new Error(`Expected Bun require helper not found in ${DIST_PATH}`)
+}
+
+const patched = original.replace(BUN_REQUIRE_LINE, `${IMPORT_LINE}\n${NODE_SAFE_REQUIRE_LINE}`)
+
+writeFileSync(DIST_PATH, patched, "utf-8")
+console.log("Patched Node/Electron require shim in dist/index.js")