[marcelopenas]

Preserves the five infrastructure commits left on the local workspace branch, rebased as a single focused change on current main. Compose gains healthy database/Redis dependencies, local builds for the checked-out Java services, and a deterministic Exchange provider mock. The backend Kubernetes manifest is split into services, local database/Redis resources, HPAs, and disruption budgets, with updated deployment and load-testing documentation.

Corrects the inherited issues before review: PostgreSQL is constrained to 17, Redis to 7.4, application defaults use explicit local tags, Order receives the shared JWT configuration, and the provider mock rebases rates for the requested currency and rejects unsupported currencies. The catalog k6 baseline requires HTTP 200 and uses the correct edge/Gateway paths. EKS keeps Redis connection credentials in a Secret, safely patches external service URLs, and installs the reusable Order contract before verification.

Already-merged frontend/product-image changes and submodule pointers are excluded. Frontends remain planned for CDN hosting. Redis endpoint wiring does not implement application caching; Product and Exchange source repositories/images remain external requirements. No services, cluster, load test, or cloud deployment were started for this PR. Please review and merge manually.

Validation:

• Six passing HTTP contract tests: three Exchange mock tests and three existing frontend image fixture tests; new Exchange tests also run in CI.
• Ruff lint/format, Prettier, JavaScript syntax, and Git whitespace checks pass.
• Both Compose configurations validate; 23 Kubernetes resources parse and deployment shell syntax passes.
• Zensical documentation builds without issues.
• Pre-commit was attempted; platform has no .pre-commit-config.yaml. Equivalent available checks were run directly.
• Live Kubernetes/EKS behavior and representative k6 capacity testing remain unverified. Existing backend/CodeQL CI runs on the PR.