This directory contains the first implementation slice of ADR-003. It is a runnable compatibility foundation, but it is not the current production API owner: Next.js, the Node Worker, Docker Compose, and the ACK manifests remain unchanged until later route-by-route cutover work passes the shared contracts.

Implemented Modules:

identity: legacy zhinian_session HMAC/chunking plus database-refreshed account, organization, role, and sessionVersion authorization.
postgres: fail-closed configuration, verified-CA TLS, readiness, and calls to the existing atomic claim and wallet PostgreSQL functions.
httpapi: process health and database readiness handlers.
application: composition and the cmd/zhinian-api process entry point.

From the repository root:

npm run go:fmt
npm run go:test
npm run go:vet
npm run go:build

The runner defaults to CGO_ENABLED=0 for reproducible cross-platform builds. To exercise the local foundation manually without changing the existing Next server, use a different port:

ZHINIAN_DATA_BACKEND=local GO_BACKEND_PORT=8080 ./backend/zhinian-api

Only /api/health and /api/ready are implemented in this foundation. No Ingress, Docker, ACK, Secret, or Worker ownership has moved to Go yet.

The Identity resolver and PostgreSQL authorization-snapshot Adapter are implemented and tested, but no Go login or current-user HTTP route is exposed yet. Route ownership remains with Next.js until a later path-level cutover.