Per-workspace isolated databases for Conductor (Neon + Prisma or Drizzle)

What this sets up

Every Conductor workspace — local and cloud, identically — gets its own database, so parallel agents never read or write the same rows. provision() (setup) is a full, deterministic rebuild — every run, not just the first: it deletes whatever branch is currently recorded for the workspace (if any) and creates a fresh one. Any data written into the workspace branch through normal app usage is discarded on every re-run — the branch is disposable by design; there is no "reuse an existing branch, keep its data" path. Each run: