Examine source code of Local Translate AI

{
  "manifest_version": 2,
  "name": "Local Translate AI",
  "version": "1.6.0",
  "description": "Translate text using local LLM (llama.cpp with OpenAI-compatible API)",
  "author": "roflsunriz",
  "homepage_url": "https://github.com/roflsunriz/local-translate-ai",
  "browser_specific_settings": {
    "gecko": {
      "id": "ununiquiewebextension@gmail.com",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "websiteContent"
        ],
        "optional": []
      }
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "notifications",
    "<all_urls>"
  ],
  "icons": {
    "48": "icons/icon-48.svg",
    "96": "icons/icon-96.svg"
  },
  "browser_action": {
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    },
    "default_title": "Local Translate AI - 設定を開く"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "sidebar_action": {
    "default_title": "Local Translate AI",
    "default_panel": "src/sidebar/index.html",
    "default_icon": {
      "48": "icons/icon-48.svg",
      "96": "icons/icon-96.svg"
    }
  },
  "options_ui": {
    "page": "src/options/index.html",
    "open_in_tab": true
  },
  "commands": {
    "translate-selection": {
      "suggested_key": {
        "default": "Alt+W"
      },
      "description": "Translate selected text"
    },
    "toggle-sidebar": {
      "suggested_key": {
        "default": "Alt+Q"
      },
      "description": "Toggle sidebar"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self'; connect-src https://localhost:* http://localhost:* https://*;"
}