Adds pre-commit identity guard handling for branch case normalization (FN-5271), updating the worktree hooks implementation and adding a real-git integration test alongside a changeset for `@runfusion/fusion`. Fusion-Task-Id: FN-5271
Adds pre-commit identity guard handling for branch case normalization (FN-5271), updating the worktree hooks implementation and adding a real-git integration test alongside a changeset for `@runfusion/fusion`. Fusion-Task-Id: FN-5271