feat(commands): add side alias for btw

ui/src/ui/app-chat.test.ts

@@ -715,6 +715,33 @@ describe("handleSendChat", () => {
     expect(host.chatMessage).toBe("/btw what changed?");
   });
 
+  it("sends /side through the detached BTW path", async () => {
+    const request = vi.fn(async (method: string) => {
+      if (method === "chat.send") {
+        return {};
+      }
+      throw new Error(`Unexpected request: ${method}`);
+    });
+    const host = makeHost({
+      client: { request } as unknown as ChatHost["client"],
+      chatRunId: "run-main",
+      chatStream: "Working...",
+      chatMessage: "/side what changed?",
+    });
+
+    await handleSendChat(host);
+
+    expect(request).toHaveBeenCalledWith(
+      "chat.send",
+      expect.objectContaining({
+        message: "/side what changed?",
+        deliver: false,
+      }),
+    );
+    expect(host.chatQueue).toEqual([]);
+    expect(host.chatRunId).toBe("run-main");
+  });
+
   it("sends /btw without adopting a main chat run when idle", async () => {
     const request = vi.fn(async (method: string) => {
       if (method === "chat.send") {

ui/src/ui/app-chat.ts

@@ -146,7 +146,7 @@ function confirmChatResetCommand(text: string) {
 }
 
 function isBtwCommand(text: string) {
-  return /^\/btw(?::|\s|$)/i.test(text.trim());
+  return /^\/(?:btw|side)(?::|\s|$)/i.test(text.trim());
 }
 
 export async function handleAbortChat(host: ChatHost) {

ui/src/ui/chat/slash-commands.node.test.ts

@@ -79,6 +79,10 @@ describe("parseSlashCommand", () => {
       command: { key: "export-session" },
       args: "",
     });
+    expect(parseSlashCommand("/side what changed?")).toMatchObject({
+      command: { key: "btw", name: "btw", aliases: expect.arrayContaining(["side"]) },
+      args: "what changed?",
+    });
   });
 
   it("keeps canonical long-form slash names as the primary menu command", () => {