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/sucrase/bin/sucrase

@@ -0,0 +1,3 @@
+#!/usr/bin/env node
+
+require("../dist/cli").default();

node_modules/sucrase/bin/sucrase-node

@@ -0,0 +1,18 @@
+#!/usr/bin/env node
+const Module = require("module");
+const {resolve} = require("path");
+
+/*
+ * Simple wrapper around node that first registers Sucrase with default settings.
+ *
+ * This is meant for simple use cases, and doesn't support custom Node/V8 args,
+ * executing a code snippet, a REPL, or other things that you might find in
+ * node, babel-node, or ts-node. For more advanced use cases, you can use
+ * `node -r sucrase/register` or register a require hook programmatically from
+ * your own code.
+ */
+require("../register");
+
+process.argv.splice(1, 1);
+process.argv[1] = resolve(process.argv[1]);
+Module.runMain();