[BUG] File Stash URL generation fails for files with special characters

[js07]

Describe the bug
File Stash fails to generate a presigned URL when the file name contain special characters such as spaces, quotes, parentheses, or brackets.

To Reproduce

1. Run the Pipedream Connect action:

gmail-download-attachment({
  "messageId": "...",
  "attachmentId": "...",
  "filename": "Simple Invoice (1).pdf",
  "stashId": ""
})

2. Observe the output:

{
  "exports": {
    "$summary": "Successfully created file Simple Invoice (1).pdf in `/tmp` directory",
    "$filestash_uploads": [{
      "localPath": "/tmp/Simple Invoice (1).pdf",
      "s3Key": ".../u/Simple Invoice (1).pdf"
    }]
  },
  "os": [],
  "ret": {
    "filename": "Simple Invoice (1).pdf",
    "filePath": "/tmp/Simple Invoice (1).pdf"
  },
  "stashId": "..."
}

3. Notice that the get_url property is missing from the $filestash_uploads object

Expected behavior
The $filestash_uploads object should include a get_url property with a valid presigned URL for accessing the file, regardless of special characters in the filename.

Additional context
https://pipedream-users.slack.com/archives/CPTJYRY5A/p1752767288375249

[adolfo-pd]

This should be completed! Please let us know if you see any issues

[adolfo-pd]

This should be completed! Please let us know if you see any issues