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/tailwindcss/scripts/release-notes.js

@@ -0,0 +1,21 @@
+// Given a version, figure out what the release notes are so that we can use this to pre-fill the
+// relase notes on a GitHub release for the current version.
+
+let path = require('path')
+let fs = require('fs')
+
+let version =
+  process.argv[2] || process.env.npm_package_version || require('../package.json').version
+
+let changelog = fs.readFileSync(path.resolve(__dirname, '..', 'CHANGELOG.md'), 'utf8')
+let match = new RegExp(
+  `## \\[${version}\\] - (.*)\\n\\n([\\s\\S]*?)\\n(?:(?:##\\s)|(?:\\[))`,
+  'g'
+).exec(changelog)
+
+if (match) {
+  let [, , notes] = match
+  console.log(notes.trim())
+} else {
+  console.log(`Placeholder release notes for version: v${version}`)
+}