Per-workspace isolated Neon databases (Prisma or Drizzle, any git repo)

What this sets up

Every workspace — a Conductor workspace, an Orca worktree, or a plain git checkout on its own branch — gets its own database, so parallel agents never read or write the same rows. provision() is a full, deterministic rebuild — every run, not just the first: it deletes the branch currently recorded for the workspace and creates a fresh one. Data written into the workspace branch through normal app usage is discarded on every re-run; the branch is disposable by design.

Each provision() run: