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_modules/fast-glob/out/utils/fs.js

@@ -0,0 +1,19 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.createDirentFromStats = void 0;
+class DirentFromStats {
+    constructor(name, stats) {
+        this.name = name;
+        this.isBlockDevice = stats.isBlockDevice.bind(stats);
+        this.isCharacterDevice = stats.isCharacterDevice.bind(stats);
+        this.isDirectory = stats.isDirectory.bind(stats);
+        this.isFIFO = stats.isFIFO.bind(stats);
+        this.isFile = stats.isFile.bind(stats);
+        this.isSocket = stats.isSocket.bind(stats);
+        this.isSymbolicLink = stats.isSymbolicLink.bind(stats);
+    }
+}
+function createDirentFromStats(name, stats) {
+    return new DirentFromStats(name, stats);
+}
+exports.createDirentFromStats = createDirentFromStats;