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/alerts/notify-slo-alerts.yaml

@@ -0,0 +1,27 @@
+groups:
+- name: notify-slo
+  rules:
+  - alert: NotifyDeliverySuccessSLO
+    expr: sum(rate(notify_delivery_success_total[5m])) / sum(rate(notify_delivery_total[5m])) < 0.98
+    for: 10m
+    labels:
+      severity: page
+    annotations:
+      summary: "Notify delivery success below SLO"
+      description: "Success ratio below 98% over 10m"
+  - alert: NotifyBacklogDepthHigh
+    expr: notify_backlog_depth > 5000
+    for: 5m
+    labels:
+      severity: page
+    annotations:
+      summary: "Notify backlog too high"
+      description: "Backlog depth exceeded 5000 messages"
+  - alert: NotifyDlqGrowth
+    expr: rate(notify_dlq_depth[10m]) > 50
+    for: 10m
+    labels:
+      severity: ticket
+    annotations:
+      summary: "Notify DLQ growth"
+      description: "Dead letter queue growing faster than threshold"