Examine source code of AI Eco Tracker

{
  "manifest_version": 3,
  "name": "AI Eco Tracker",
  "version": "0.3",
  "description": "Estime l'empreinte écologique de vos requêtes sur ChatGPT, Claude et Gemini.",
  "permissions": [
    "scripting",
    "storage",
    "tabs"
  ],
  "host_permissions": [
    "https://chat.openai.com/*",
    "https://chatgpt.com/*",
    "https://claude.ai/*",
    "https://gemini.google.com/*",
    "https://gemini.google.com/app/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "128": "icon.png"
    },
    "default_title": "AI Eco Tracker"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "icons": {
    "128": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "deriazjulien@gmail.com",
      "strict_min_version": "109.0"
    }
  }
}