Add workspace setup streaming and setup tab

packages/app/src/utils/host-routes.test.ts

@@ -82,6 +82,10 @@ describe("workspace route parsing", () => {
       kind: "file",
       path: "src/index.ts",
     });
+    expect(parseWorkspaceOpenIntent("setup:L3RtcC9yZXBv")).toEqual({
+      kind: "setup",
+      workspaceId: "/tmp/repo",
+    });
   });
 
   it("uses the plain workspace route when workspace context is provided", () => {

packages/app/src/utils/host-routes.ts

@@ -99,7 +99,8 @@ export type WorkspaceOpenIntent =
   | { kind: "agent"; agentId: string }
   | { kind: "terminal"; terminalId: string }
   | { kind: "file"; path: string }
-  | { kind: "draft"; draftId: string };
+  | { kind: "draft"; draftId: string }
+  | { kind: "setup"; workspaceId: string };
 
 export function parseWorkspaceOpenIntent(
   value: string | null | undefined,
@@ -136,6 +137,13 @@ export function parseWorkspaceOpenIntent(
     }
     return { kind: "file", path: decodedPath };
   }
+  if (kind === "setup") {
+    const workspaceId = decodeWorkspaceIdFromPathSegment(payload);
+    if (!workspaceId) {
+      return null;
+    }
+    return { kind: "setup", workspaceId };
+  }
 
   return null;
 }

packages/app/src/utils/workspace-tab-identity.ts

@@ -22,6 +22,10 @@ export function normalizeWorkspaceTabTarget(
     const path = trimNonEmpty(value.path);
     return path ? { kind: "file", path: path.replace(/\\/g, "/") } : null;
   }
+  if (value.kind === "setup") {
+    const workspaceId = trimNonEmpty(value.workspaceId);
+    return workspaceId ? { kind: "setup", workspaceId: workspaceId.replace(/\\/g, "/") } : null;
+  }
   return null;
 }
 
@@ -44,6 +48,9 @@ export function workspaceTabTargetsEqual(
   if (left.kind === "file" && right.kind === "file") {
     return left.path === right.path;
   }
+  if (left.kind === "setup" && right.kind === "setup") {
+    return left.workspaceId === right.workspaceId;
+  }
   return false;
 }
 
@@ -57,6 +64,9 @@ export function buildDeterministicWorkspaceTabId(target: WorkspaceTabTarget): st
   if (target.kind === "terminal") {
     return `terminal_${target.terminalId}`;
   }
+  if (target.kind === "setup") {
+    return `setup_${target.workspaceId}`;
+  }
   return `file_${target.path}`;
 }