wren node takes switches (plug, socket, appliances), refused when the model lacks the kind

docs/reference/node-types.md

@@ -367,9 +367,11 @@ that is not wired to the node.
   `garden`, `patio`, `garage`, `driveway`, `balcony`
 - **kind**: `light`, `lamp`, `brightness` for a light; `setpoint`, `heating`,
   `heat`, `boost` for heating; `media`, `music`, `tv`; `shutter`, `blind`,
-  `cover`; `water`, `watering`, `sprinkler`
+  `cover`; `water`, `watering`, `sprinkler`; `switch`, `plug`, `socket`,
+  `appliances` for a switch, which only wren's s10 model knows
 
-A port naming anything else is refused when the flow is built. A port is
+A port naming anything else, or a kind the installed model lacks, is refused
+when the flow is built. A port is
 named after its message unless it is given a name of its own, in the node
 panel's port name field or as `{"name": "setpoint", "port":
 "living_room_setpoint"}` through the flow API.
@@ -387,11 +389,12 @@ reads.
 | `shutters.up` / `down` | `true` / `false` | `100` / `0` | `up` / `down` |
 | `shutters.stop` | — | — | `stop` |
 | `watering.start` / `stop` | `true` / `false` | — | `on` / `off` |
+| `switches.on` / `off` | `true` / `false` | `1` / `0` | `on` / `off` |
 
 | Setting | Default | Notes |
 |---|---|---|
 | `apply` | `false` | write to the targets; off, the node only reports |
-| `min_confidence` | `0.93` | below this nothing is written |
+| `min_confidence` | `0.93` | below this nothing is written. wren's s10 model is less sure of itself, use `0.8` with it |
 | `aliases` | empty | the house's own words, or words the recogniser hears wrong, in the model's: `{"traverse": "living room light", "page too": "patio"}` |
 
 Each record in `actions` contains `message`, `value`, `applied`, `delay_s`,
@@ -412,8 +415,8 @@ The model sees every area, wired or not, each with at least a light, so "the
 bathroom light" is not taken for a light that is wired elsewhere. Such a call
 is reported but not applied, and goes on to `unhandled`. So is a call on an
 area the command does not name, unless it is the user's area or, with no area
-named, the living room: "switch on the appliances" is a word the model never
-learned, and it lands on whichever light it was shown. The command is read
+named, the living room: "switch on the appliances" is a word the pinned model
+never learned, and it lands on whichever light it was shown. The command is read
 in lower case without sentence marks and with number words as digits ("in
 five minutes" as "in 5 minutes"), as the model was trained. `aliases` are
 applied before, whole words in any case, and `unhandled` carries the prompt