feat(web): add tooltip for charge point status with online/offline indication

apps/web/app/dashboard/charge-points/page.tsx

@@ -13,6 +13,7 @@ import {
   Spinner,
   Table,
   TextField,
+  Tooltip,
 } from "@heroui/react";
 import {
   Plus,
@@ -424,12 +425,33 @@ export default function ChargePointsPage() {
               {chargePoints.map((cp) => (
                 <Table.Row key={cp.id} id={String(cp.id)} className={"group"}>
                   <Table.Cell>
-                    <Link
-                      href={`/dashboard/charge-points/${cp.id}`}
-                      className="font-medium text-accent"
-                    >
-                      {cp.chargePointIdentifier}
-                    </Link>
+                    <Tooltip delay={0}>
+                      <Tooltip.Trigger>
+                        <div className="flex items-center gap-2">
+                          <span
+                            className={`size-2 shrink-0 rounded-full ${
+                              cp.lastHeartbeatAt &&
+                              dayjs().diff(dayjs(cp.lastHeartbeatAt), "second") < 120
+                                ? "bg-success"
+                                : "bg-gray-300"
+                            }`}
+                          />
+                          <Link
+                            href={`/dashboard/charge-points/${cp.id}`}
+                            className="font-medium text-accent"
+                          >
+                            {cp.chargePointIdentifier}
+                          </Link>
+                        </div>
+                      </Tooltip.Trigger>
+                      <Tooltip.Content placement="start">
+                        {cp.lastHeartbeatAt
+                          ? dayjs().diff(dayjs(cp.lastHeartbeatAt), "second") < 120
+                            ? "在线"
+                            : "离线"
+                          : "从未连接"}
+                      </Tooltip.Content>
+                    </Tooltip>
                   </Table.Cell>
                   {isAdmin && (
                     <Table.Cell>