Examine source code of Zen History

{
  "manifest_version": 3,
  "name": "Zen History & Analytics",
  "version": "1.0.0",
  "description": "Local history control, tagging, domain blocking, and productivity insights.",
  "permissions": [
    "history",
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "sidebar_action": {
    "default_title": "Zen History",
    "default_panel": "sidebar/sidebar.html"
  },
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "zen-history@local.dev",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "homepage_url": "https://github.com/yourusername/zen-sidebar"
}