archetype flows behave like the built-ins: switch off per archetype or per agent, board cards, duplicate

The document's disabled list takes archetype:<archetype>/<flow> (off for every member) and the same with @<agent> (off for one member); a key naming nothing is ignored. GET /api/notify/flows lists the archetype flows with their members, the board draws a card for each with a switch, a checkbox per agent and duplicate, and the dry run counts their hits. The flows keep following the archetype.

frontend/packages/swarm-ui/test/flow-draft.test.mjs

@@ -387,6 +387,47 @@ test("seedFlow opens an empty or copied draft under the placeholder id", () => {
   assert.equal(view.flows.length, 1, "nothing is added to the view");
 });
 
+test("seedFlow copies an archetype flow by its key, sending to its one member", () => {
+  const members = {
+    ...flow(),
+    id: "new-issues",
+    name: "New issues",
+    nodes: flow().nodes.map((n) =>
+      n.kind === "todo" ? { ...n, to: "members" } : n,
+    ),
+  };
+  const archetype = (agents) => ({
+    revision: 1,
+    disabled_builtins: [],
+    builtins: [],
+    flows: [],
+    archetype_flows: [
+      {
+        archetype: "triage",
+        key: "archetype:triage/new-issues",
+        flow: members,
+        members: agents,
+      },
+    ],
+  });
+  const recipients = (f) =>
+    f.nodes.filter((n) => n.kind === "todo").map((n) => n.to);
+  const one = seedFlow(archetype(["alice"]), "archetype:triage/new-issues");
+  assert.equal(one.id, NEW_FLOW_ID);
+  assert.equal(one.name, "New issues (copy)");
+  assert.ok(recipients(one).length > 0, "control: the flow has a todo");
+  assert.ok(recipients(one).every((to) => to.agent === "alice"));
+  // Two members: the operator names the agent in the editor.
+  const two = seedFlow(
+    archetype(["alice", "bob"]),
+    "archetype:triage/new-issues",
+  );
+  assert.ok(recipients(two).every((to) => to.agent === ""));
+  assert.equal(seedFlow(archetype(["alice"]), "archetype:triage/gone"), null);
+  // The archetype's own flow keeps "members".
+  assert.ok(recipients(members).every((to) => to === "members"));
+});
+
 test("savedAs takes the id from the name, clear of every saved id", () => {
   const view = {
     revision: 1,