[WIP] Fix icon-pack.json format for Surge compatibility

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

Problem

The icon-pack.json file at https://github.com/eric24lu/IconSVG/blob/main/icon-pack.json currently uses an invalid format for Surge icon sets, causing Surge to display "无效数据" (invalid data).

The current file is a top-level JSON array, but Surge requires a top-level JSON object with name, description, and icons fields.

Current format (❌ invalid for Surge):

[
  {
    "name": "CN",
    "label": "China",
    "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/CN.png"
  },
  ...
]

Required format (✅ valid for Surge):

{
  "name": "IconSVG",
  "description": "Icon Pack",
  "icons": [
    {
      "name": "CN",
      "label": "China",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/CN.png"
    },
    {
      "name": "HK",
      "label": "Hong Kong",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/HK.png"
    },
    {
      "name": "JP",
      "label": "Japan",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/JP.png"
    },
    {
      "name": "SG",
      "label": "Singapore",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/SG.png"
    },
    {
      "name": "US",
      "label": "United States",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/US.png"
    },
    {
      "name": "UN",
      "label": "United Nations",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/UN.png"
    },
    {
      "name": "YouTube",
      "label": "YouTube",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/YouTube.png"
    },
    {
      "name": "bonjour",
      "label": "Bonjour",
      "url": "https://raw.githubusercontent.com/eric24lu/IconSVG/main/bonjour.svg"
    }
  ]
}

Changes needed

1. Wrap the existing array inside an object with an "icons" key.
2. Add a top-level "name" field (e.g., "IconSVG").
3. Add a top-level "description" field (e.g., "Icon Pack").

This pull request was created from Copilot chat.

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