feat(components): introduce Solana wallet UI component library

[cxalem]

Summary

This PR introduces a new packages/components workspace with reusable, token-driven wallet UI building blocks and docs pages for setup and usage.

Included

• Add packages/components with themed UI primitives and composites:
  • Foundation: Skeleton, AddressDisplay
  • Layout: DashboardShell, TransactionToast
  • Data: BalanceCard, TransactionTable
  • Input/Network: SwapInput, NetworkSwitcher
  • Wallet flows: ConnectWalletButton, WalletModal
• Add Storybook stories and Vitest coverage for the components package.
• Add component docs pages:
  • apps/docs/content/docs/components.mdx
  • apps/docs/content/docs/guides/01-getting-started.mdx
  • apps/docs/content/docs/guides/02-transaction-toasts.mdx
  • apps/docs/content/docs/guides/03-wallet-ui.mdx
• Add packages/components/README.md with integration and API guidance.

How to run locally

pnpm install
pnpm --filter components lint
pnpm --filter components exec vitest run
pnpm --filter components build

Suggested review order

1. packages/components/src/index.css (theme tokens and semantic mapping)
2. packages/components/src/kit-components/ui/address-display and packages/components/src/kit-components/ui/skeleton
3. packages/components/src/kit-components/ui/dashboard-shell and packages/components/src/kit-components/ui/transaction-toast
4. packages/components/src/kit-components/ui/balance-card and packages/components/src/kit-components/ui/transaction-table
5. packages/components/src/kit-components/ui/swap-input and packages/components/src/kit-components/ui/network-switcher
6. packages/components/src/kit-components/ui/connect-wallet-button and packages/components/src/kit-components/ui/wallet-modal
7. packages/components/README.md and docs pages under apps/docs/content/docs/

Validation

• pnpm --filter components lint ✅
• pnpm --filter components exec vitest run ✅ (186 tests)
• pnpm --filter components build ✅

Screenshots / Videos

Screen.Recording.2026-02-23.at.9.00.02.PM.mov

Live components showcase:

https://framework-kit-e2e-visual.vercel.app/ (RPC working on mainnet)

[vercel]

@cxalem is attempting to deploy a commit to the Solana Foundation Team on Vercel.

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