`[cco-frontend]` Initialize React SPA & Configuration Loader

[clnsmth]

Description
We need to initialize the cco-frontend React application. This Single Page Application (SPA) will provide the user interface for manual editing and visualization of CCOs. A critical requirement is that the frontend must be configurable at runtime (via environment variables) to support rebranding by different hosts.

Context
This application will be deployed by various organizations (e.g., a specific journal or repository). They need to be able to change the "App Title," "Logo URL," and active adapters without rebuilding the code.

Requirements

• Framework: Initialize a new React project (recommend using Vite for speed, or Create React App).
• Configuration: Implement a mechanism to load runtime configuration (Title, Branding Colors, Active Adapters) from environment variables or a config.json generated at container startup.
• Basic Layout: Create a simple landing page that displays the configured "App Title" to prove the configuration loading works.

Technical Scope (Suggested)

• Note on Config: Since React builds to static HTML/JS, you cannot read process.env at runtime in the browser. You typically need a startup script in the Docker container that writes environment variables to a window._env_ object or a config.js file that the React app loads.
• Use a UI component library (like Material UI or Tailwind) to speed up development, but keep it lightweight.

Acceptance Criteria

• React app runs locally and via Docker.
• The application title/branding changes when the environment variables are updated and the container is restarted.
• Basic project structure (components, pages, services) is established.

References

• ADR-001 Section 2: Container Design (Frontend)
• ADR-001 Section 5: Deployment & Configuration (Rebrandable)