Who was Annasaheb Dabholkar, and what is his contribution to Sai literature according to the preface?

According to Chapter 0, Shri Govind Raghunath alias Annasaheb Dabholkar was a devoted follower of Shri Sai Baba. His most significant contribution is the creation of the sweet, inspirational, and grace-filled biography of Sai Baba titled Shri Sai Satcharita. This work is described as the modern crown jewel of hagiographies. The preface notes that this biography was meticulously written and published chapter by chapter over a period of six years in the Shri Sai Leela magazine before being compiled into a complete book. The preface itself is written for this very work, positioning Dabholkar as the primary chronicler of Baba's life for a modern audience.