fix(turbo-boundaries): resolve 32 violations

- Re-tag core-trpc as core-composition (transitively reaches features
  through core-api's AppRouter type) and allow core-composition packages
  to depend on other core-composition packages in turbo.json
- Add @payloadcms/richtext-lexical as direct dep of apps/cms (was pulled
  transitively via core-cms; Payload's importMap.js imports it directly)
- Add @storybook/react as devDep of core-ui and apps/storybook (stories
  belong with components per Atomic Design)
- Update apps/storybook .storybook/{main,preview}.ts to point at
  packages/core-ui (was still referencing deleted packages/ui) and export
  CSS via package exports instead of direct file import
- Add JSDoc type annotation to Payload-generated importMap.js to suppress
  TypeScript's TS2742 error from complex inferred types
- Add storybook-static to eslint ignores in core-eslint base config

pnpm turbo boundaries now reports zero violations.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/core-ui/package.json

@@ -4,7 +4,8 @@
   "version": "0.0.0",
   "type": "module",
   "exports": {
-    ".": "./src/index.ts"
+    ".": "./src/index.ts",
+    "./styles/globals.css": "./src/styles/globals.css"
   },
   "scripts": {
     "build": "tsc --noEmit",
@@ -19,6 +20,7 @@
   "devDependencies": {
     "@repo/core-eslint": "workspace:*",
     "@repo/core-typescript": "workspace:*",
+    "@storybook/react": "^8.6.0",
     "@types/react": "^19.0.0"
   }
 }