feat: Code Ocean version 4.0 functionality

[jake-valsamis]

• add get_data_asset_file_urls and get_result_file_urls
• add deprecation warnings for get_data_asset_file_download_url and get_result_file_download_url
• bump min server version

[Copilot]

Pull Request Overview

This PR adds Code Ocean version 4.0 functionality with new URL generation methods for both data assets and computation results. The changes deprecate existing single-URL methods in favor of new methods that provide both view and download URLs.

• Adds new get_data_asset_file_urls and get_result_file_urls methods that return both view and download URLs
• Deprecates existing get_data_asset_file_download_url and get_result_file_download_url methods with warnings
• Updates minimum server version requirement to 4.0.0

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/codeocean/folder.py	Adds FileURLs dataclass and deprecation warning to DownloadFileURL
src/codeocean/data_asset.py	Adds get_data_asset_file_urls method and deprecates get_data_asset_file_download_url
src/codeocean/computation.py	Adds get_result_file_urls method and deprecates get_result_file_download_url
src/codeocean/client.py	Updates minimum server version to 4.0.0 and adds custom metadata support
src/codeocean/custom_metadata.py	Adds new custom metadata schema functionality
src/codeocean/capsule.py	Adds comprehensive App Panel support with new dataclasses and methods

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