STCOR-726 map sounds directory for remote applications

* map the `sounds` directory for remote applications, analogous to how
  translations and icons are served
* provide `/code` to make the registry human-readable
* catch and display startup errors in case humans make stupid coding
  mistakes and need help finding them

webpack.config.federate.remote.js

@@ -13,6 +13,10 @@ const buildConfig = (metadata) => {
   const stripesModulePaths = getStripesModulesPaths();
   const translationsPath = path.join(process.cwd(), 'translations', displayName.split('.').shift());
   const iconsPath = path.join(process.cwd(), 'icons');
+
+  // yeah, yeah, soundsPath vs sound. sorry. `sound` is a legacy name.
+  // other paths are plural and I'm sticking with that convention.
+  const soundsPath = path.join(process.cwd(), 'sound');
   const shared = processShared(singletons, { singleton: true });
 
   const config = {
@@ -38,6 +42,10 @@ const buildConfig = (metadata) => {
           directory: iconsPath,
           publicPath: '/icons'
         },
+        {
+          directory: soundsPath,
+          publicPath: '/sounds'
+        },
       ]
     },
     module: {

webpack/registryServer.js

@@ -20,9 +20,12 @@ const registryServer = {
       res.status(200).send(`Remote ${name} metadata updated`);
     });
 
-    // return entire registry
+    // return entire registry for machines
     app.get('/registry', (_, res) => res.json(registry));
 
+    // return entire registry for humans
+    app.get('/code', (_, res) => res.send(`<pre>${JSON.stringify(registry, null, 2)}</pre>`));
+
     app.delete('/registry', (req, res) => {
       const metadata = req.body;
       const { name } = metadata;

webpack/serve.js

@@ -34,7 +34,12 @@ module.exports = function serve(stripesConfig, options) {
     serviceWorkerConfig.resolveLoader = { modules: ['node_modules', platformModulePath, coreModulePath] };
 
     // stripes module registry
-    registryServer.start();
+    try {
+      registryServer.start();
+    }
+    catch (e) {
+      console.error(e)
+    }
 
     let config = buildConfig(stripesConfig);