Fix Playwright workspace isolation (#1627)

* Fix Playwright workspace isolation

* Clean up empty project E2E cleanup

* Clean up worktree restore E2E projects

packages/app/e2e/helpers/composer.ts

@@ -149,6 +149,7 @@ export async function selectGithubOption(
 export interface MockAgentSetup {
   client: SeedDaemonClient;
   repo: Awaited<ReturnType<typeof createTempGitRepo>>;
+  cleanup: () => Promise<void>;
 }
 
 /** Create a temp repo, start a mock agent, navigate to it, and wait for it to be running. */
@@ -166,20 +167,29 @@ export async function startRunningMockAgent(
   if (!createdWorkspace.workspace) {
     throw new Error(createdWorkspace.error ?? "Failed to create workspace");
   }
+  const workspace = createdWorkspace.workspace;
   const agent = await client.createAgent({
     provider: "mock",
     cwd: repo.path,
-    workspaceId: createdWorkspace.workspace.id,
+    workspaceId: workspace.id,
     model: opts.model,
   });
-  const agentUrl = `${buildHostWorkspaceRoute(serverId, createdWorkspace.workspace.id)}?open=${encodeURIComponent(`agent:${agent.id}`)}`;
+  const agentUrl = `${buildHostWorkspaceRoute(serverId, workspace.id)}?open=${encodeURIComponent(`agent:${agent.id}`)}`;
   await page.goto(agentUrl);
   await expectComposerVisible(page);
   await client.sendAgentMessage(agent.id, opts.prompt);
   await expect(page.getByRole("button", { name: /stop|cancel/i }).first()).toBeVisible({
     timeout: 30_000,
   });
-  return { client, repo };
+  return {
+    client,
+    repo,
+    cleanup: async () => {
+      await client.removeProject(workspace.projectId).catch(() => undefined);
+      await client.close().catch(() => undefined);
+      await repo.cleanup().catch(() => undefined);
+    },
+  };
 }
 
 export interface GithubWorkspaceHandle {
@@ -198,8 +208,14 @@ export async function openGithubWorkspace(
   if (!createdWorkspace.workspace) {
     throw new Error(createdWorkspace.error ?? `Failed to create workspace ${repoPath}`);
   }
+  const workspace = createdWorkspace.workspace;
   await gotoAppShell(page);
-  await selectWorkspaceInSidebar(page, createdWorkspace.workspace.id);
+  await selectWorkspaceInSidebar(page, workspace.id);
   await waitForTabBar(page);
-  return { cleanup: () => client.close().catch(() => undefined) };
+  return {
+    cleanup: async () => {
+      await client.removeProject(workspace.projectId).catch(() => undefined);
+      await client.close().catch(() => undefined);
+    },
+  };
 }