fix(webui): drive slash command routing from metadata

webui/src/tests/api.test.ts

@@ -674,12 +674,16 @@ describe("webui API helpers", () => {
             title: "Stop current task",
             description: "Cancel the active task.",
             icon: "square",
+            lifecycle: "stop_active_turn",
+            accepts_args: false,
           },
           {
             command: "/restart",
             title: "Restart nanobot",
             description: "Restart the bot process.",
             icon: "rotate-cw",
+            lifecycle: "side_channel",
+            accepts_args: false,
           },
           {
             command: "/history",
@@ -687,18 +691,46 @@ describe("webui API helpers", () => {
             description: "Print the last N messages.",
             icon: "history",
             arg_hint: "[n]",
+            lifecycle: "side_channel",
+            accepts_args: true,
+          },
+          {
+            command: "/legacy",
+            title: "Legacy row",
+            description: "Old metadata should not be guessed.",
+            icon: "circle-help",
           },
         ],
       }),
     } as Response);
 
     await expect(listSlashCommands("tok")).resolves.toEqual([
+      {
+        command: "/stop",
+        title: "Stop current task",
+        description: "Cancel the active task.",
+        icon: "square",
+        argHint: "",
+        lifecycle: "stop_active_turn",
+        acceptsArgs: false,
+      },
+      {
+        command: "/restart",
+        title: "Restart nanobot",
+        description: "Restart the bot process.",
+        icon: "rotate-cw",
+        argHint: "",
+        lifecycle: "side_channel",
+        acceptsArgs: false,
+      },
       {
         command: "/history",
         title: "Show conversation history",
         description: "Print the last N messages.",
         icon: "history",
         argHint: "[n]",
+        lifecycle: "side_channel",
+        acceptsArgs: true,
       },
     ]);
     expect(fetch).toHaveBeenCalledWith(