feat(cask): add wow-backup cask

Casks/wow-backup.rb

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+cask "wow-backup" do
+  version "1.0.7"
+  sha256 "49d6a9886801c8ed6ec134f36920b1741667bc5443ccfb43055dc4cb9beb1077"
+
+  url "https://git.asarius.site/rukira/wow-backup/releases/download/v#{version}/WoW%20Backup-#{version}.dmg"
+  name "WoW Backup"
+  desc "Lightweight World of Warcraft addon and WTF backup tool"
+  homepage "https://git.asarius.site/rukira/wow-backup"
+
+  app "WoW Backup.app"
+
+  zap trash: [
+    "~/Library/Application Support/WoWBackup",
+    "~/Library/LaunchAgents/com.rukira.wowbackup.plist",
+    "~/Library/Preferences/com.rukira.wowbackup.plist",
+    "~/Library/Saved Application State/com.rukira.wowbackup.savedState",
+  ]
+end

README.md

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+# Homebrew Tap for WoW Backup
+
+This is the official Homebrew tap for [WoW Backup](https://git.asarius.site/rukira/wow-backup).
+
+## Installation
+
+Add this tap:
+```bash
+brew tap rukira/tap https://git.asarius.site/rukira/homebrew-tap.git
+```
+
+Install WoW Backup:
+```bash
+brew install --cask --no-quarantine wow-backup
+```
+
+## Updating
+
+```bash
+brew update
+brew upgrade --cask wow-backup
+```
+
+## Uninstalling
+
+```bash
+brew uninstall --cask --zap wow-backup
+```