Initial commit: notification-elements-demo app

Interactive Angular 19 demo for @sda/notification-elements-ui with
6 sections: Bell & Feed, Notification Center, Inbox, Comments &
Threads, Mention Input, and Full-Featured layout. Includes mock
data, dark mode toggle, and real-time event log.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

node_modules/node-gyp/lib/remove.js

@@ -0,0 +1,43 @@
+'use strict'
+
+const fs = require('graceful-fs').promises
+const path = require('path')
+const log = require('./log')
+const semver = require('semver')
+
+async function remove (gyp, argv) {
+  const devDir = gyp.devDir
+  log.verbose('remove', 'using node-gyp dir:', devDir)
+
+  // get the user-specified version to remove
+  let version = argv[0] || gyp.opts.target
+  log.verbose('remove', 'removing target version:', version)
+
+  if (!version) {
+    throw new Error('You must specify a version number to remove. Ex: "' + process.version + '"')
+  }
+
+  const versionSemver = semver.parse(version)
+  if (versionSemver) {
+    // flatten the version Array into a String
+    version = versionSemver.version
+  }
+
+  const versionPath = path.resolve(gyp.devDir, version)
+  log.verbose('remove', 'removing development files for version:', version)
+
+  // first check if its even installed
+  try {
+    await fs.stat(versionPath)
+  } catch (err) {
+    if (err.code === 'ENOENT') {
+      return 'version was already uninstalled: ' + version
+    }
+    throw err
+  }
+
+  await fs.rm(versionPath, { recursive: true, force: true, maxRetries: 3 })
+}
+
+module.exports = remove
+module.exports.usage = 'Removes the node development files for the specified version'