Document project overview and architecture summary

[Codex]

Summarizes the Three Rivers Bank credit card demo: full-stack React/Spring Boot app with H2 as source of truth and BIAN mock for supplemental data.

• Overview: Positioned the app as a business credit card comparison platform with H2-seeded catalog and optional BIAN enrichment.
• Architecture: Captured React + React Query + MUI frontend, Spring Boot + Resilience4j + Feign backend, Docker/Azure deployment path.
• Data Flow & Endpoints: Noted H2-first reads, circuit breaker fallback, caching, and key routes under /api/cards, /actuator/health, Swagger/H2 console.
• Workflows: Listed primary dev/test commands (Maven, Vite, Playwright) and Docker/CI pipeline locations for quick ramp-up.

Original prompt

explain the project

The user has attached the following file paths as relevant context:

• .github\copilot-instructions.md

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