chore: initial hub repo structure

infra/config/mysql/init.sql/00_init_user.sql

@@ -0,0 +1,10 @@
+-- Create database if not exists
+CREATE DATABASE IF NOT EXISTS `tracer_study`;
+
+-- Create dedicated user for tracer_study
+CREATE USER IF NOT EXISTS 'tracerstudy'@'%' IDENTIFIED BY 'tracerstudy_secret';
+GRANT ALL PRIVILEGES ON `tracer_study`.* TO 'tracerstudy'@'%';
+
+
+-- Flush privileges
+FLUSH PRIVILEGES;