fix(storybook): glob all package stories + declare core-ui dep

The stories glob covered only packages/core-ui, so any feature story a
component-must-have-story fix produces would be invisible in Storybook
and skipped by pnpm test:stories. Glob every package's src tree and
declare the workspace dep on @repo/core-ui (the only storied package
today) so turbo's build cache invalidates when its stories change.
Verified: storybook build succeeds, 18 stories in index.json. (S7)

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

apps/storybook/package.json

@@ -17,6 +17,7 @@
     "@playwright/test": "^1.49.0",
     "@repo/core-eslint": "workspace:*",
     "@repo/core-typescript": "workspace:*",
+    "@repo/core-ui": "workspace:*",
     "@storybook/addon-essentials": "^8.6.0",
     "@storybook/react": "^8.6.0",
     "@storybook/react-vite": "^8.6.0",