v0.34.0

Added

• Git-native claims. A work claim can be scoped to the git branch it happens on:
  synapse git-claim TASK --paths … --base … --auto-release-on … resolves the current
  branch client-side, and synapse state shows it. synapse git-hook install writes
  post-commit and post-merge hooks that call synapse git-release, which releases the
  agent's claims whose paths were just committed or merged. synapse conflicts
  (optionally --check-diff) predicts merge conflicts between claims held on different
  branches whose paths overlap, exiting non-zero so a synapse conflicts && <merge> gate
  works. All git execution is client-side; the hub stores the branch as opaque metadata
  and never runs git or reads a filesystem.