Common contract every backend below implements. A flat (domain, id) -> value
KV store — the same shape useSqliteAuthState() uses for its signal_keys
table. Query semantics (ordering, pagination) stay owned by
makeInMemoryStore() in JS; adapters are pure storage.
Common contract every backend below implements. A flat (domain, id) -> value KV store — the same shape useSqliteAuthState() uses for its
signal_keystable. Query semantics (ordering, pagination) stay owned by makeInMemoryStore() in JS; adapters are pure storage.