Modules own raw device data; Terra-View owns fleet/project/session/report context. Documents the SFM (read-through) vs SLMM (Terra-View-stored) asymmetry, the rule new modules must follow, and grandfathers SLMM as a deliberate-future-realignment exception. Establishes the docs/adr/ convention.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
