chore: rename core → core-components and hooks → react-hooks-components

[acasazza]

Summary

Rename two v5 workspace packages — both the on-disk folder and the npm package name — for clearer, more descriptive naming.

Current	New
packages/core (@commercelayer/core)	packages/core-components (@commercelayer/core-components)
packages/hooks (@commercelayer/hooks)	packages/react-hooks-components (@commercelayer/react-hooks-components)

Scope / affected areas

• package.json name fields for both packages
• workspace:* dependency declarations: react-hooks-components → core-components; react-components → both
• ~81 @commercelayer/core / @commercelayer/hooks import statements across react-components (src + specs) and hooks (src)
• Root package.json build / build:watch --filter names
• packages/react-components/vitest.config.mts aliases (../core, ../hooks, #sdk, #types)
• .github/workflows/pgk-pr-new.yaml publish paths
• packages/document doc content (file names unchanged)
• pnpm-lock.yaml regeneration

Notes

• These packages are unpublished (v5, 1.0.0), so there are no external consumers to break.
• Targets the v5.0.0 branch (the packages do not exist on main).
• Folder moves done via git mv to preserve history.

Acceptance

• pnpm build and pnpm test pass across all packages.
• pnpm install --frozen-lockfile remains consistent.

[acasazza]

Merged into v5.0.0 via #802 (merge commit 53b6413). Closing manually since GitHub only auto-closes on merges to the default branch.