v0.4.0-rc7

Changelog

• a6defcd Use single constant for services list
• 1bf1d0b Check services exist/running
• faf8026 Update livetest.sh
• c7045e6 feat: use native prometheus serving
• 3efc0e1 fix: improve handling of indexes in retry loop
• 7b31072 feat: validate zdb data size
• 543a852 feat: implement batch upload
• d098d63 Create zstor.go
• c6026c1 refactor: replace hook package with zstor and update deps
• 4bf392e fix: replace hook.ZstorClient with *zstor.Client to fix build
• 38073e2 fix: update zstor.Store call and remove deprecated hook.ZstorClient
• 69a19a8 refactor: integrate zstor client and simplify retry manager logic
• e04c39b fix: remove extra argument from zstor.Store call
• f99603f refactor: remove duplicate ZstorClient interface in hook package
• 1687029 refactor: replace zstor exec calls with injected interface
• 01c15b2 fix: use zstor -k correctly