🔧 Change PyPI package name to fastaiohttp

[2-seo]

🎯 Issue Description

PyPI deployment is failing because the package name fasthttp is too similar to an existing project on PyPI.

ERROR    HTTPError: 400 Bad Request from https://upload.pypi.org/legacy/        
         The name 'fasthttp' is too similar to an existing project. See         
         https://pypi.org/help/#project-name for more information.

📋 Solution

Change the PyPI package name to fastaiohttp while keeping:

• ✅ GitHub repository name: fasthttp
• ✅ Python import name: from fasthttp import FastHTTP
• ✅ Module structure unchanged

🔧 Changes Required

• Update pyproject.toml - change name = "fasthttp" to name = "fastaiohttp"
• Verify installation instructions in README.md use pip install fastaiohttp

📦 Result

After this change, users will:

• Install with: pip install fastaiohttp
• Import with: from fasthttp import FastHTTP

This maintains a clean separation between the PyPI distribution name and the actual Python package name.