Get the current creation progress for an Audience

One read of every member's training state plus the Audience rollup. The Audience is ready when readiness.isReady is true: every member reports readyToChat, so it can be chatted with and a Study can run on it. readiness.startsNow says whether a Study started now runs at once even though some members failed training for good: it then runs without readiness.leftOut of them. Members keep learning from their sources in the background after that: readiness.learning counts the ready members whose knowledge step (a wider source collection, then a system prompt rebuilt from it) is still running, and readiness.fullyTrained turns true once none is. The Audience's own research continues in the background too: a new Audience stands first on what is already known (the evidence pool, your material and stated assumptions), and research.phase is researching while its web research runs, researched once it has been merged and the members recalibrated (between runs, never under one), usable if it failed and the Audience stays on its first phase. coverage says how each relevant standard dimension is covered: sourced, proxy, assumed or missing. Automatic validation of a new Audience waits for fullyTrained and for its research; nothing else does.