Examine source code of MTD Guard 2026

{
  "manifest_version": 3,
  "name": "MTD Guard 2026",
  "version": "2.0.0",
  "description": "UK HMRC MTD 2026 Compliance Tool for Freelancers - Privacy-First Tax Calculator with Pro Features",
  "permissions": [
    "storage"
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "mtd-guard-2026-uk@shivamshukla.dev",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}