fix: remove features string from window.open to enable tab reuse

window.open(url, name, 'noopener,noreferrer') with a non-empty features
string forces a new popup window and ignores the name for tab reuse.
Remove the third parameter so the browser focuses existing named tabs.

Quality gates: tsc --noEmit pass, npm run build pass, 80/80 tests pass

apps/web/src/components/features/session/session-card.tsx

@@ -138,7 +138,11 @@ export function SessionCard({
 					)}
 					{session.url && (
 						<p className="session-card-url">
-							<a href={session.url} target={`session-${session.id}`} rel="noopener noreferrer">
+							<a
+								href={session.url}
+								target={`session-${session.id}`}
+								rel="noopener noreferrer"
+							>
 								{session.url}
 							</a>
 						</p>

apps/web/src/components/features/tool/instance-list.tsx

@@ -11,7 +11,10 @@ import {
 } from "../../../api/sessions";
 import type { ToolType } from "../../../api/tool-types";
 import { CreateSessionForm } from "../session/create-session-form";
-import { listConfigProfiles, type ConfigProfile } from "../../../api/config-profiles";
+import {
+	listConfigProfiles,
+	type ConfigProfile,
+} from "../../../api/config-profiles";
 import { listSSHKeys, type SSHKey } from "../../../api/ssh-keys";
 import { useEventContext } from "../../../state/events";
 
@@ -348,16 +351,13 @@ export const InstanceList = ({
 																)}
 																onChange={(e) => {
 																	if (e.target.checked) {
-																setSelectedSshKeyIdsForAction(
-																	(prev) => [...prev, key.id],
-																);
+																		setSelectedSshKeyIdsForAction((prev) => [
+																			...prev,
+																			key.id,
+																		]);
 																	} else {
-																setSelectedSshKeyIdsForAction(
-																	(prev) =>
-																		prev.filter(
-																			(id) =>
-																				id !== key.id,
-																		),
+																		setSelectedSshKeyIdsForAction((prev) =>
+																			prev.filter((id) => id !== key.id),
 																		);
 																	}
 																}}
@@ -496,16 +496,13 @@ export const InstanceList = ({
 																)}
 																onChange={(e) => {
 																	if (e.target.checked) {
-																setSelectedSshKeyIdsForAction(
-																	(prev) => [...prev, key.id],
-																);
+																		setSelectedSshKeyIdsForAction((prev) => [
+																			...prev,
+																			key.id,
+																		]);
 																	} else {
-																setSelectedSshKeyIdsForAction(
-																	(prev) =>
-																		prev.filter(
-																			(id) =>
-																				id !== key.id,
-																		),
+																		setSelectedSshKeyIdsForAction((prev) =>
+																			prev.filter((id) => id !== key.id),
 																		);
 																	}
 																}}

apps/web/src/hooks/use-instance-actions.ts

@@ -37,14 +37,14 @@ export function useInstanceActions(
 	const handleOpen = useCallback((session: Session) => {
 		const tabName = `session-${session.id}`;
 		if (session.url) {
-			window.open(session.url, tabName, "noopener,noreferrer");
+			window.open(session.url, tabName);
 			return;
 		}
 		if (session.tool_type_interfaces?.includes("terminal")) {
-			window.open(`/instances/${session.id}/terminal`, tabName, "noopener,noreferrer");
+			window.open(`/instances/${session.id}/terminal`, tabName);
 			return;
 		}
-		window.open(`/projects/${session.project_id}`, tabName, "noopener,noreferrer");
+		window.open(`/projects/${session.project_id}`, tabName);
 	}, []);
 
 	const handleStart = useCallback(