Examine source code of Claude Code Notifier

{
  "manifest_version": 2,
  "name": "Claude Code Notifier",
  "version": "1.0.2",
  "description": "Get browser notifications when Claude Code needs input, permission, or feedback",
  "permissions": [
    "notifications",
    "storage",
    "http://localhost:3099/*",
    "ws://localhost:3099/*"
  ],
  "web_accessible_resources": [
    "icons/*.png"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "claude-code-notifier@example.com",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "dist/background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  }
}