Initial commit: dashboard-elements-ui library

Angular library providing dashboard components including grid layout,
drag-and-drop widgets, resize handles, toolbar, config panel, layout
presets, and persistence services.

ng-package.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "node_modules/ng-packagr/ng-package.schema.json",
+  "lib": {
+    "entryFile": "src/index.ts",
+    "styleIncludePaths": ["src/styles"]
+  },
+  "dest": "dist",
+  "deleteDestPath": true,
+  "assets": [
+    "src/styles/**/*.scss"
+  ]
+}