New routes: companies, approvals, costs, dashboard, authz. New
services: companies, approvals, costs, dashboard, heartbeat,
activity-log. Add auth middleware and structured error handling.
Expand existing agent and issue routes with richer CRUD operations.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
pnpm monorepo with shared packages, server, and UI workspaces.
Includes Docker multi-stage build, Postgres compose, and root TypeScript/Vitest config.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
