Define production foundation and project boundaries

[fengting124]

What changed

• add the production foundation and project-boundary design
• define reliability, security, observability, testing, data, API, and repository standards
• replace the outdated next-step recommendation with reliable job dispatch
• record current risks and a branch-by-branch delivery sequence through GPU integration

Why

The project needs production-grade behavior that can be demonstrated and tested before model weights move to a GPU server. The design prioritizes concrete failure modes such as PostgreSQL-to-Redis dual writes, long model calls inside database transactions, unsafe upload assumptions, and non-reproducible evaluation.

Validation

• documentation placeholder scan
• local-link scan
• git diff --check
• baseline npm run test, npm run lint, npm run build
• baseline mvn -B test
• baseline Python model-service pytest

Follow-up

After review, the first code branch is feature/reliable-job-dispatch for a PostgreSQL transactional outbox and idempotent Redis publication.