Isolation was dormant (no current identity ever set). Now: setCurrentUser
records who is reading; declareConnections(neighborsOf) grants each protected
document's read cap to owner + connections. Reads discriminate through the
ReadCap filter: private→owner, protected→owner+connections, public→all. Generic
(the consumer injects identity + connections). Write-guard coverage limits
documented honestly in docs/simulation.md (real write paths bypass the JS proxy;
full enforcement awaits native caps). isolation-active.test.ts proves the
protected+connections path.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Sylvain Duchesne
7db5eef33f