Migrate from deprecated --loader to modern --import flag

Update ESM loader registration to use the modern register() API
with --import flag instead of the deprecated --loader flag.

Align with socket-sdk-js naming convention:
- Use scripts/register-loader.mjs (not in utils/)
- Register scripts/utils/alias-loader.mjs via register() API
- Update load.cjs to use --import flag

This eliminates the ExperimentalWarning about --loader deprecation.

Author: jdalton

scripts/load.cjs

@@ -29,10 +29,10 @@ if (require.main === module) {
   const scriptPath = path.join(__dirname, scriptFile)
 
   // Run the script with the alias loader.
-  // Convert loader path to file:// URL for cross-platform ESM loader support (Windows requires file:// URLs)
-  const loaderPath = path.join(__dirname, 'utils', 'alias-loader.mjs')
+  // Convert register path to file:// URL for cross-platform ESM loader support (Windows requires file:// URLs)
+  const registerPath = path.join(__dirname, 'register-loader.mjs')
   const args = [
-    `--loader=${pathToFileURL(loaderPath).href}`,
+    `--import=${pathToFileURL(registerPath).href}`,
     scriptPath,
     ...flags,
   ]

scripts/register-loader.mjs

@@ -1,25 +1,15 @@
 /**
- * @fileoverview Register module loader for aliasing @socketsecurity/lib to local build.
- * This should be imported at the very top of any script that needs local registry access.
+ * @fileoverview Register alias loader for local Socket packages.
+ * This module uses the modern register() API to load the alias-loader.
  */
 
-import { existsSync } from 'node:fs'
 // eslint-disable-next-line n/no-unsupported-features/node-builtins -- Required for loader registration
 import { register } from 'node:module'
 import path from 'node:path'
 import { fileURLToPath, pathToFileURL } from 'node:url'
 
 const __dirname = path.dirname(fileURLToPath(import.meta.url))
-const rootPath = path.resolve(__dirname, '..')
-const registryPath = path.join(
-  rootPath,
-  '..',
-  'socket-registry',
-  'registry',
-  'dist',
-)
+const loaderPath = path.join(__dirname, 'utils', 'alias-loader.mjs')
 
-if (existsSync(registryPath)) {
-  const loaderPath = path.join(__dirname, 'loader.mjs')
-  register(pathToFileURL(loaderPath).href, import.meta.url)
-}
+// Register the alias loader using the modern API
+register(pathToFileURL(loaderPath).href, import.meta.url)

scripts/utils/alias-loader.mjs

@@ -5,7 +5,7 @@
  * This file should be copied or imported from socket-registry to other repos.
  *
  * Usage:
- *   node --loader=./scripts/utils/alias-loader.mjs script.mjs
+ *   node --import=./scripts/register-loader.mjs script.mjs
  */
 
 import { existsSync } from 'node:fs'