WriteFileRequest and ReadFileRequest should have scheme support

[worksofliam]

In order for a client to support multiple file systems, I would love to see a scheme in addition to path in when referring to a path. It could be optional, defaulting to file. Optionally, you could replace path with a standard Uri type.

export interface ReadTextFileRequest {
  /**
   * Optional maximum number of lines to read.
   */
  limit?: number | null;
  /**
   * Optional line number to start reading from (1-based).
   */
  line?: number | null;
  /**
   * Uri with an absolute path to the file to read.
   */
  uri: { // move this to new interface
    path: string;
    scheme?: string; // default to file
  }
  /**
   * The session ID for this request.
   */
  sessionId: string;
}

• https://zed-industries.github.io/agent-client-protocol/interfaces/WriteTextFileRequest.html
• https://zed-industries.github.io/agent-client-protocol/interfaces/ReadTextFileRequest.html