Merge changes I2eb4f0b8,I0f59e1a1,Id1fddef6,I9f6ab7bd,I80c5878e, ... into main

* changes:
  Hap: clean visibility
  Hap: Split binder from service -> easier reference
  Hap: merge Start into constructor
  Hap: re-order variable and move some to final
  Hap: early return and switch syntax
  Hap: Use wrapper to manage broadcast callback