feat: add Chocolatey package and Linux/macOS install script with automated publishing

packaging/choco/echohub.nuspec

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package xmlns="http://schemas.microsoft.com/packaging/2015/06/nuspec.xsd">
+  <metadata>
+    <id>echohub</id>
+    <version>__VERSION__</version>
+    <title>EchoHub</title>
+    <authors>Hue</authors>
+    <owners>Hue</owners>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <licenseUrl>https://github.com/HueByte/EchoHub/blob/master/LICENSE</licenseUrl>
+    <projectUrl>https://github.com/HueByte/EchoHub</projectUrl>
+    <projectSourceUrl>https://github.com/HueByte/EchoHub</projectSourceUrl>
+    <docsUrl>https://huebyte.github.io/EchoHub</docsUrl>
+    <bugTrackerUrl>https://github.com/HueByte/EchoHub/issues</bugTrackerUrl>
+    <packageSourceUrl>https://github.com/HueByte/EchoHub/tree/master/packaging/choco</packageSourceUrl>
+    <iconUrl>https://raw.githubusercontent.com/HueByte/EchoHub/master/assets/hue_icon.png</iconUrl>
+    <description>EchoHub is a decentralized IRC-style chat application with a terminal user interface (TUI). Connect to any EchoHub server, join channels, and chat — all from your terminal. Features include SignalR real-time messaging, file sharing, custom themes, and IRC gateway compatibility.</description>
+    <summary>Decentralized terminal chat client with IRC gateway support</summary>
+    <tags>chat irc decentralized tui terminal signalr echohub</tags>
+    <releaseNotes>https://huebyte.github.io/EchoHub/changelog/v__VERSION__.html</releaseNotes>
+    <copyright>Copyright (c) 2026 Hue</copyright>
+  </metadata>
+  <files>
+    <file src="tools\**" target="tools" />
+  </files>
+</package>

packaging/choco/tools/LICENSE.txt

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2026 Hue
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

packaging/choco/tools/VERIFICATION.txt

@@ -0,0 +1,17 @@
+VERIFICATION
+
+To verify the package contents:
+
+1. Download the official release from:
+   https://github.com/HueByte/EchoHub/releases
+
+2. Download: EchoHub-Client-win-x64.zip
+
+3. Calculate the SHA256 checksum:
+   - PowerShell: Get-FileHash EchoHub-Client-win-x64.zip -Algorithm SHA256
+   - Linux/macOS: sha256sum EchoHub-Client-win-x64.zip
+
+4. Compare with the checksum in chocolateyInstall.ps1 (checksum64 value).
+
+LICENSE: MIT License - see LICENSE.txt in this directory or
+https://github.com/HueByte/EchoHub/blob/master/LICENSE

packaging/choco/tools/chocolateyInstall.ps1

@@ -0,0 +1,18 @@
+$ErrorActionPreference = 'Stop'
+
+$toolsDir = Split-Path -Parent $MyInvocation.MyCommand.Definition
+$version  = $env:chocolateyPackageVersion
+
+$packageArgs = @{
+    packageName    = $env:chocolateyPackageName
+    unzipLocation  = $toolsDir
+    url64bit       = "https://github.com/HueByte/EchoHub/releases/download/v$version/EchoHub-Client-win-x64.zip"
+    checksum64     = '__CHECKSUM64__'
+    checksumType64 = 'sha256'
+}
+
+Install-ChocolateyZipPackage @packageArgs
+
+# Create a shim so 'echohub' is available on PATH
+$exePath = Join-Path $toolsDir 'client-win-x64' 'EchoHub.Client.exe'
+Install-BinFile -Name 'echohub' -Path $exePath

packaging/choco/tools/chocolateyUninstall.ps1

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+$ErrorActionPreference = 'Stop'
+
+Uninstall-BinFile -Name 'echohub'