mcp-content-encoding-create-or-update-file-fails-with-error-content-enc-b6bfc906

THEN Modify the create_or_update_file function to accept a content object with 'encoding' and 'content' fields, and automatically base64 encode the input string. The function schema should require content to be an object with 'encoding' (string) and 'content' (string) where content is base64-encoded. Alternatively, update the implementation to automatically encode and structure the content as expected by GitHub's API.

// Before: content: string
// After: content: { encoding: string; content: string }
// Example: createOrUpdateFile({ content: { encoding: 'base64', content: Buffer.from('text').toString('base64') } })