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/pacote/lib/util/is-package-bin.js

@@ -0,0 +1,25 @@
+// Function to determine whether a path is in the package.bin set.
+// Used to prevent issues when people publish a package from a
+// windows machine, and then install with --no-bin-links.
+//
+// Note: this is not possible in remote or file fetchers, since
+// we don't have the manifest until AFTER we've unpacked.  But the
+// main use case is registry fetching with git a distant second,
+// so that's an acceptable edge case to not handle.
+
+const binObj = (name, bin) =>
+  typeof bin === 'string' ? { [name]: bin } : bin
+
+const hasBin = (pkg, path) => {
+  const bin = binObj(pkg.name, pkg.bin)
+  const p = path.replace(/^[^\\/]*\//, '')
+  for (const kv of Object.entries(bin)) {
+    if (kv[1] === p) {
+      return true
+    }
+  }
+  return false
+}
+
+module.exports = (pkg, path) =>
+  pkg && pkg.bin ? hasBin(pkg, path) : false