/gnomem package

Package gnomem is a shared, contestable memory for multiple agents.

Most "agent memory" products store text and retrieve similar chunks. That works for one agent talking to itself. It breaks the moment several independent agents — possibly run by different people, on different models — must maintain a *shared* understanding of the same world and sometimes disagree about it.

gnomem models memory not as text but as a graph of structured claims. Each claim is a (subject, predicate, object) triple with an author, evidence and a confidence. Other agents can support it, contest it, add evidence, supersede it with a better claim, or trigger adjudication. No agent can silently erase an inconvenient finding: claims can be superseded or retracted, but the history stays visible and ordered.

The point of the demo is the structure, not access control: anyone may write. Gating *who* may write to which claim is exactly what the capability-wallet demo adds on top.