feat: Add Storybook configuration and motion tokens implementation

- Introduced Storybook configuration files (`main.ts`, `preview.ts`, `tsconfig.json`) for Angular components.
- Created motion tokens in `motion-tokens.ts` to define durations, easing functions, and transforms.
- Developed a Storybook story for motion tokens showcasing their usage and reduced motion fallback.
- Added SCSS variables for motion durations, easing, and transforms in `_motion.scss`.
- Implemented accessibility smoke tests using Playwright and Axe for automated accessibility checks.
- Created portable and sealed bundle structures with corresponding JSON files for evidence locker.
- Added shell script for verifying notify kit determinism.

docs/notifications/operations/dashboards/notify-slo.json

@@ -0,0 +1,9 @@
+{
+  "title": "Notify SLO",
+  "panels": [
+    { "title": "Delivery success", "target": "sum(rate(notify_delivery_success_total[5m])) / sum(rate(notify_delivery_total[5m]))" },
+    { "title": "Backlog depth", "target": "notify_backlog_depth" },
+    { "title": "DLQ depth", "target": "notify_dlq_depth" },
+    { "title": "Latency p95", "target": "histogram_quantile(0.95, rate(notify_delivery_latency_seconds_bucket[5m]))" }
+  ]
+}