Typed pydantic-settings config, structlog JSON logging with request/trace id
propagation and redaction of phone numbers, tokens and face keys, the unified
response envelope and error-code table from 架构文档 §9.2, async SQLAlchemy
session management, ORM models for the eight foundation tables, and the
OpenTelemetry/Prometheus wiring.
packages/domain stays pure logic -- snowflake ids, the quota three-phase
protocol and the tk_task state machine -- so it can be tested without a
database and is held to mypy strict.
uv-managed PEP 621 project with ruff, mypy (strict on packages/domain and
packages/llm), pytest with coverage, and import-linter contracts that
mechanically enforce the dependency rules of 架构文档 §4.2 -- including the
two forbidden edges (compliance and identity must not depend on business
domains). CI, pre-commit and a detect-secrets baseline gate every push;
.env is gitignored before anything is ever staged.
xsl