A full audit of docs against code

With the documentation living beside the code, it became worth auditing all of it at once. Every page and spec was read against the implementation it describes and corrected where the two had drifted — the kind of sweep that is only affordable when the docs are in the same repository and the same review as the change.

The audit paid for itself immediately: access rules on the CRM and Memory bridges turned out to be wrong, and were fixed as part of the same pass. Documentation that nobody checks is decoration; this one found a bug.