fix(docker): copy scripts/ into image for runtime imports

fix(docker): copy scripts/ into image for runtime imports

Tonight's `fly deploy` succeeded the migrate step but every machine
crashed at startup with:

  error: Cannot find module '../../scripts/self-host-bootstrap'
         from '/app/src/lib/self-bootstrap.ts'

Root cause: the Dockerfile only copied `src/`, `drizzle/`, etc —
not `scripts/`. The new `src/lib/self-bootstrap.ts` imports
`runBootstrap` from `scripts/self-host-bootstrap.ts`, which
exists in dev but not in the production image.

Two ways to fix:
  1. Move runBootstrap into src/ — invasive refactor of working code
  2. Copy scripts/ into the image — one line, no code changes

Going with (2). The scripts directory is small (~225 KB), all
files are operator tooling that's safe to ship, and several other
things in src/ already reach into scripts/ at runtime (e.g. the
admin-self-host route spawns scripts/self-host-bootstrap.ts
directly). The image was already inconsistent on this point;
this commit closes the gap.

https://claude.ai/code/session_01QFLWDxWw65DX6enMcS5Lwe