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.

src/Web/StellaOps.Web/package.json

@@ -12,7 +12,10 @@
     "test:e2e": "playwright test",
     "serve:test": "ng serve --configuration development --port 4400 --host 127.0.0.1",
     "verify:chromium": "node ./scripts/verify-chromium.js",
-    "ci:install": "npm ci --prefer-offline --no-audit --no-fund"
+    "ci:install": "npm ci --prefer-offline --no-audit --no-fund",
+    "storybook": "storybook dev -p 4600",
+    "storybook:build": "storybook build",
+    "test:a11y": "FAIL_ON_A11Y=0 playwright test tests/e2e/a11y-smoke.spec.ts"
   },
   "engines": {
     "node": ">=20.11.0",
@@ -36,7 +39,16 @@
     "@angular-devkit/build-angular": "^17.3.17",
     "@angular/cli": "^17.3.17",
     "@angular/compiler-cli": "^17.3.0",
+    "@axe-core/playwright": "4.8.4",
     "@playwright/test": "^1.47.2",
+    "@storybook/addon-a11y": "8.1.0",
+    "@storybook/addon-essentials": "8.1.0",
+    "@storybook/addon-interactions": "8.1.0",
+    "@storybook/angular": "8.1.0",
+    "@storybook/angular-renderer": "8.1.0",
+    "@storybook/test": "8.1.0",
+    "@storybook/testing-library": "0.2.2",
+    "storybook": "8.1.0",
     "@types/jasmine": "~5.1.0",
     "jasmine-core": "~5.1.0",
     "karma": "~6.4.0",