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/lucide-react/LICENSE

@@ -0,0 +1,15 @@
+ISC License
+
+Copyright (c) for portions of Lucide are held by Cole Bemis 2013-2022 as part of Feather (MIT). All other copyright (c) for Lucide are held by Lucide Contributors 2022.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

node-network-app/node_modules/lucide-react/README.md

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+<p align="center">
+  <a href="https://github.com/lucide-icons/lucide#gh-light-mode-only">
+    <img src="https://lucide.dev/lucide-react.svg#gh-light-mode-only" alt="Lucide React - Implementation of the lucide icon library for react applications." width="540">
+  </a>
+  <a href="https://github.com/lucide-icons/lucide#gh-dark-mode-only">
+    <img src="https://lucide.dev/package-logos/dark/lucide-react.svg#gh-dark-mode-only" alt="Lucide React - Implementation of the lucide icon library for react applications." width="540">
+  </a>
+</p>
+
+
+# Lucide React
+
+Implementation of the lucide icon library for react applications.
+
+> What is lucide? Read it [here](https://github.com/lucide-icons/lucide#what-is-lucide).
+
+## Installation
+
+```sh
+yarn add lucide-react
+```
+
+or
+
+```sh
+npm install lucide-react
+```
+
+## Documentation
+
+For full documentation, visit [lucide.dev](https://lucide.dev/guide/packages/lucide-react)
+
+## Community
+
+Join the [Discord server](https://discord.gg/EH6nSts) to chat with the maintainers and other users.
+
+## License
+
+Lucide is licensed under the ISC license. See [LICENSE](https://lucide.dev/license).
+
+## Sponsors
+
+<a href="https://vercel.com?utm_source=lucide&utm_campaign=oss">
+  <img src="https://lucide.dev/vercel.svg" alt="Powered by Vercel" width="200" />
+</a>
+
+<a href="https://www.digitalocean.com/?refcode=b0877a2caebd&utm_campaign=Referral_Invite&utm_medium=Referral_Program&utm_source=badge"><img src="https://lucide.dev/digitalocean.svg" width="200" alt="DigitalOcean Referral Badge" /></a>
+
+### Awesome backer 🍺
+
+<a href="https://www.scipress.io?utm_source=lucide"><img src="https://lucide.dev/sponsors/scipress.svg" width="180" alt="Scipress sponsor badge" /></a>

node-network-app/node_modules/lucide-react/package.json

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+{
+  "name": "lucide-react",
+  "description": "A Lucide icon library package for React applications",
+  "version": "0.454.0",
+  "license": "ISC",
+  "homepage": "https://lucide.dev",
+  "bugs": "https://github.com/lucide-icons/lucide/issues",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/lucide-icons/lucide.git",
+    "directory": "packages/lucide-react"
+  },
+  "keywords": [
+    "Lucide",
+    "React",
+    "Feather",
+    "Icons",
+    "Icon",
+    "SVG",
+    "Feather Icons",
+    "Fontawesome",
+    "Font Awesome"
+  ],
+  "author": "Eric Fennis",
+  "amdName": "lucide-react",
+  "main": "dist/cjs/lucide-react.js",
+  "main:umd": "dist/umd/lucide-react.js",
+  "module": "dist/esm/lucide-react.js",
+  "unpkg": "dist/umd/lucide-react.min.js",
+  "typings": "dist/lucide-react.d.ts",
+  "sideEffects": false,
+  "files": [
+    "dist",
+    "dynamicIconImports.js",
+    "dynamicIconImports.js.map",
+    "dynamicIconImports.d.ts"
+  ],
+  "devDependencies": {
+    "@testing-library/jest-dom": "^6.1.6",
+    "@testing-library/react": "^14.1.2",
+    "@types/react": "^18.2.37",
+    "@vitejs/plugin-react": "^4.2.1",
+    "jest-serializer-html": "^7.1.0",
+    "react": "18.2.0",
+    "react-dom": "18.2.0",
+    "rollup": "^4.22.4",
+    "rollup-plugin-dts": "^6.1.0",
+    "typescript": "^4.9.5",
+    "vite": "5.0.13",
+    "vitest": "^1.1.1",
+    "@lucide/build-icons": "1.1.0",
+    "@lucide/rollup-plugins": "1.0.0",
+    "@lucide/shared": "1.0.0"
+  },
+  "peerDependencies": {
+    "react": "^16.5.1 || ^17.0.0 || ^18.0.0 || ^19.0.0-rc"
+  },
+  "scripts": {
+    "build": "pnpm clean && pnpm copy:license && pnpm build:icons && pnpm typecheck && pnpm build:bundles",
+    "copy:license": "cp ../../LICENSE ./LICENSE",
+    "clean": "rm -rf dist && rm -rf stats && rm -rf ./src/icons/*.ts && rm -f dynamicIconImports.*",
+    "build:icons": "build-icons --output=./src --templateSrc=./scripts/exportTemplate.mjs --renderUniqueKey --withAliases --withDynamicImports --separateAliasesFile --aliasesFileExtension=.ts --iconFileExtension=.ts --exportFileName=index.ts",
+    "build:bundles": "rollup -c ./rollup.config.mjs",
+    "typecheck": "tsc",
+    "typecheck:watch": "tsc -w",
+    "test": "pnpm build:icons && vitest run",
+    "test:watch": "vitest watch",
+    "version": "pnpm version --git-tag-version=false"
+  }
+}