Support File URLs in GenAI File API for Direct Upload #130

[code-soubhik]

Currently, the GenAI File API requires a local file path for uploads. This issue proposes adding support for file URLs (e.g., https://example.com/file.pdf) to allow users to upload files directly without manually downloading them first.

Proposed Enhancement:

• Created a wrapper function GoogleAIFileManager.uploadRemoteFile to accept file URLs in addition to local file paths.
• Automatically fetch the file from the provided URL and upload it to the API.
• Ensure compatibility with different file types (images, videos, PDFs, etc.).

Why this is needed:

• No need to download the file, it can add directly.

Issue:
File URL option for the GenAI File API #130