Examine source code of ZeroWebTools Companion

{
  "manifest_version": 3,
  "name": "ZeroWebTools Companion",
  "version": "0.1.7",
  "description": "Companion extension for ZeroWebTools. Extract clean articles, test APIs, and run local utilities. 100% private, no tracking.",
  "permissions": [
    "unlimitedStorage",
    "contextMenus",
    "activeTab",
    "declarativeNetRequest",
    "declarativeNetRequestWithHostAccess"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "externally_connectable": {
    "matches": [
      "https://zerowebtools.com/*",
      "https://www.zerowebtools.com/*",
      "http://localhost/*"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_title": "ZeroWebTools",
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self'"
  },
  "declarative_net_request": {
    "rule_resources": [
      {
        "id": "ruleset_1",
        "enabled": true,
        "path": "rules.json"
      }
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "developertools@zerowebtools.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}