feat: Add presence heartbeat for Matrix online status

- matrix-gateway: POST /internal/matrix/presence/online endpoint
- usePresenceHeartbeat hook with activity tracking
- Auto away after 5 min inactivity
- Offline on page close/visibility change
- Integrated in MatrixChatRoom component

node-network-app/node_modules/@nodelib/fs.stat/out/providers/sync.js

@@ -0,0 +1,23 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.read = void 0;
+function read(path, settings) {
+    const lstat = settings.fs.lstatSync(path);
+    if (!lstat.isSymbolicLink() || !settings.followSymbolicLink) {
+        return lstat;
+    }
+    try {
+        const stat = settings.fs.statSync(path);
+        if (settings.markSymbolicLink) {
+            stat.isSymbolicLink = () => true;
+        }
+        return stat;
+    }
+    catch (error) {
+        if (!settings.throwErrorOnBrokenSymbolicLink) {
+            return lstat;
+        }
+        throw error;
+    }
+}
+exports.read = read;