feat(react-styled): build complete styled component library and styled example

[alikhere]

Overview

@storacha/console-toolkit-react-styled currently only provides authentication components. Partner developers need a complete set of pre-styled UI components matching the official Storacha console — so they can build a fully functional app by importing components and a single CSS file, with zero styling work required.

This epic covers building the full styled component library and a complete working example (examples/full-app-styled) that demonstrates the entire integration from login through space management, file uploads, and account settings.

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Goal

Ship a styled component library covering the full Storacha console UI — layout shell, space management, file upload/sharing, and account settings. Each component wraps the existing headless @storacha/console-toolkit-react components and adds console-exact styling.

examples/full-app-styled is built incrementally alongside the components in each PR so that by the end of this epic it serves as a complete, working reference integration that any partner developer can copy from.

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Design System

All components strictly follow the official Storacha console design system sourced from tailwind.config.ts and globals.css:

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Example — examples/full-app-styled

The example is the primary proof that the library works end-to-end. It must:

• Import everything exclusively from @storacha/console-toolkit-react-styled —
  never from @storacha/console-toolkit-react or any other Storacha package directly
• Import a single CSS file — @storacha/console-toolkit-react-styled/styles.css —
  and require zero partner-written CSS
• Stay minimal — example code shows component composition only, no custom logic
  or styling
• Grow with each sub-issue PR until it covers the complete console experience:
  login → space list → upload files → view files → account settings

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Acceptance Criteria

• Partner developers can build a complete Storacha-integrated app by importing
  only from @storacha/console-toolkit-react-styled
• All styles ship from a single CSS import — no partner-written CSS required
• UI matches the official Storacha console exactly across all components
• examples/full-app-styled is a complete, working reference app by end of epic
• pnpm run ci passes on every sub-issue PR — no PR merges with broken lint,
  types, tests, or build