Add control_print to the edge command set

Pause, resume and stop, as one variant carrying a verb rather than three
near-identical ones - matching the gateway's `PrintControl`, which exists so
there is one method across four vendor implementations instead of three.

Confirmed live on a P1P (2026-10-11), which is also where the two warnings
in the description come from. A stop is a cancel and is not undoable: the
printer reports the cancelled print as FAILED. And `result: "success"` from
the printer means the command was accepted, not that anything changed - all
three verbs answered success while it sat IDLE with nothing to pause - so a
caller that needs to know the state changed has to read telemetry back.

The enum is `pause|resume|stop` and deliberately not `cancel`, even though
`cancel` is Moonraker's word and the Klipper implementation behind this does
send a cancel. A verb only one vendor recognises must not validate on the
wire.

The "no start a print variant" note stays, with its reason corrected:
starting an uploaded file has now been confirmed by hand, so what is missing
is the path around it - nothing uploads a sliced file to a gateway and
nothing decides which printer runs which job.

packages/ts-types/src/schemas/edge.ts

@@ -72,6 +72,23 @@ export const PrinterCommandSchema = Type.Union([
      */
     percent: Type.Integer({ minimum: 0, maximum: 100 }),
   }),
+  Type.Object({
+    action: Type.Literal("control_print"),
+    /**
+     * Confirmed live on a P1P (2026-10-11). Beware what the printer's
+     * acceptance means: all three answered `success` while it was IDLE with
+     * nothing to pause, so confirmation that the state actually changed has
+     * to come from telemetry, not from the command result.
+     *
+     * `stop` is a cancel and cannot be undone - a Bambu reports the
+     * cancelled print as `FAILED`.
+     */
+    control: Type.Union([
+      Type.Literal("pause"),
+      Type.Literal("resume"),
+      Type.Literal("stop"),
+    ]),
+  }),
   Type.Object({
     action: Type.Literal("send_gcode_line"),
     /** The most powerful variant by far; be careful about exposing it to a UI. */