DESIGN.md@docs git:20260720.debe84eA

Immutable. This exact content is served forever at /api/v1/blob/4074c7fa5a781c22.

# radin — design history

This was the scratch/working design doc for the `~/.claude/.radin/`
namespace migration. Its content has been formalized into
[docs/architecture.md](architecture.md) and [docs/domain-models.md](domain-models.md).
Kept here as a historical note of how the storage model was arrived at; not
maintained going forward.