Examine source code of YouTube Summary

{
  "manifest_version": 2,
  "name": "YouTube Summary",
  "version": "1.16.0",
  "description": "YouTube Summary — riassume i video YouTube tramite la chat web gratuita di DeepSeek.",
  "browser_specific_settings": {
    "gecko": {
      "id": "{ed648463-0f29-43c8-a7e9-a2f493abd192}",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent",
          "browsingActivity"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "permissions": [
    "storage",
    "notifications",
    "webNavigation",
    "https://www.youtube.com/watch*",
    "https://www.youtube.com/shorts/*",
    "https://www.youtube.com/embed/*",
    "https://www.youtube.com/youtubei/*",
    "https://www.youtube.com/api/timedtext*",
    "https://www.youtube.com/oembed*",
    "https://youtube.com/watch*",
    "https://youtube.com/shorts/*",
    "https://youtube.com/embed/*",
    "https://youtube.com/youtubei/*",
    "https://youtube.com/api/timedtext*",
    "https://youtube.com/oembed*",
    "https://m.youtube.com/watch*",
    "https://m.youtube.com/shorts/*",
    "https://m.youtube.com/embed/*",
    "https://m.youtube.com/youtubei/*",
    "https://m.youtube.com/api/timedtext*",
    "https://youtu.be/*",
    "https://chat.deepseek.com/*"
  ],
  "content_security_policy": "default-src 'self'; script-src 'self'; object-src 'none'; base-uri 'none'; style-src 'self'; img-src 'self' data:;",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_title": "YouTube Summary",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "sidebar_action": {
    "default_panel": "sidebar/sidebar.html",
    "default_title": "YouTube Summary",
    "open_at_install": false,
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.youtube.com/watch*",
        "https://www.youtube.com/shorts/*",
        "https://www.youtube.com/embed/*",
        "https://youtube.com/watch*",
        "https://youtube.com/shorts/*",
        "https://youtube.com/embed/*",
        "https://m.youtube.com/watch*",
        "https://m.youtube.com/shorts/*",
        "https://m.youtube.com/embed/*",
        "https://youtu.be/*"
      ],
      "js": [
        "content_scripts/youtube-extractor.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "https://chat.deepseek.com/*"
      ],
      "js": [
        "content_scripts/deepseek-injector.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    "youtube-button/button.html",
    "sidebar/sidebar.html",
    "sidebar/sidebar.css",
    "sidebar/sidebar.js",
    "shared/ui-logic.js",
    "icons/icon-16.png",
    "icons/icon-48.png",
    "icons/icon-128.png"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  }
}