fix the build working directory issue

docker quick start and remove unnecessary files

prefer alpine in docker

fix no 'ps -p' option available when running with alpine

bugfix: build.bat add auth profile

add principal type check when get user info

clean code for isBlank

fix table case

fix schema

add default email for apollo user

support user email field

return users when search user keyword is empty

fix for spring security auth table case issue

fix potential conditional npe