Build log

Next.js 15 on the frontend with React Server Components for the catalog renderer and client components for the inventory workspace. Authentication via Clerk; multi-tenant isolation enforced at the Convex query layer (every query takes an orgId filter; helpers wrap that contract so it cannot be skipped accidentally).

Convex as the backend — reactive queries push catalog and stock changes to every open buyer link in real time. Cloudflare R2 stores generated PDFs and line-sheet PNGs; Resend handles transactional + campaign email. Deploys via Vercel.

PDF + PNG generation uses react-pdf for vector PDFs and html-to-image for raster PNG line sheets. Generation happens in a Convex action; outputs are written to R2 with signed URLs.

Per-buyer pricing tiers live as a separate price table joined at order time, so a buyer's negotiated discount is enforced server-side rather than computed in the catalog renderer.

Five Claude-Code subagents kept under Projects/Linesheet/linesheet-app/.claude/agents/:

• code-reviewer (Opus) — quality, security, tenant isolation review on every PR
• debugger (Sonnet) — data-flow tracing for Convex query bugs
• test-writer (Sonnet) — Vitest unit + integration coverage
• linesheet-coder — feature work with project-context preloaded
• project-coder — generic code edits routed via the vault's neural router