[Feature Request] Add default notification hooks for user input/approval states

Description
Claude Code _really_ should have notification hooks configured by default, or at the very least have a documented example in docs.

The collective lost productivity of users not knowing CC is waiting for input/approval or already finished could easily be ~1M hours (or more)! 🫠

The majority of normie Claude Code users likely don't even know hooks exist.
Including notification hooks is an easy quality-of-life improvement while also demonstrating the utility of a powerful, but underutilized feature.

Basic settings.json example:

{
  "hooks": {
    "Notification": [{
      "matcher": "",
      "hooks": [{
        "type": "command",
        "command": "powershell.exe -c \"[System.Media.SystemSounds]::Exclamation.Play()\""
      }]
    }],
    "Stop": [{
      "matcher": "",
      "hooks": [{
        "type": "command",
        "command": "powershell.exe -c \"[System.Media.SystemSounds]::Asterisk.Play()\""
      }]
    }]
  }
}

_It's also possible to use _Windows.UI.Notifications_ directly or through a .ps1 script which would make for a great example, but I haven't fully tested so only posted what I've confirmed works._

Environment Info

• Platform: win32 (Win10-64)
• Terminal: vscode (VS Code Insiders 1.107.0)
• Version: 2.0.50
• Feedback ID: 68c0422f-3cfa-4f56-9b5b-38ff5e12c71c