Give modules the seat traffic and the contract to ask a person and answer on a channel (hq ADR 0259)

README.md

@@ -90,6 +90,16 @@ runtime's (`node-tools/internal/launch`, mesh-tools).
 values and then every change. Through the runtime that launched the bundle, which refuses what the
 module did not declare. Current values, never history and never a secret (novox/hq ADR 0201).
 
+### `seats` and `asks` — asking a person, answering on a channel (Go)
+A seat may name its caller or its kind (novox/hq ADR 0259): `stdio.SeatPublish` submits an accept or says
+an event under the module's own name or kind, `stdio.SeatTake` takes a held seat's work, `stdio.SeatProve`
+and `stdio.SeatAnswer` carry a proof (a code typed by a person, by request and reply, never kept),
+`stdio.SeatRecord` reads a record kept for the module, and `State(...).Create` and `.Update` write by
+compare-and-set. The runtime does each only as far as the module's membership lists. `go/asks` is the
+contract on top: the `Ask` an asker publishes and the checks it is held to, the `Warrant` it acts on
+(`For`, `Says`), and the `Message`, `Choice`, `LinkAsked` and `Code` a channel takes and says, with the
+subjects each travels on.
+
 ### `primitives` — sealing, semver, resolved-env
 Seal/unseal for secrets, semantic version comparison, and the accessor a module uses to read its
 own resolved environment.