Git add and commit require sandbox disabled

Any git add or git commit run inside the sandbox produces "fatal: Unable to create … index.lock: Read-only file system" and fails. This affects the entire staging/commit workflow, not just network operations.

Why: The repo is a git worktree. The worktree's git metadata lives at /home/marco/Development/OreStudio/OreStudio.remote/.git/worktrees/OreStudio.local3/. The sandbox treats that path as read-only even though it is listed in the write allow-list, apparently because the EROFS response is returned by the sandbox before the allow-list check completes for lock-file creation. The user confirmed this is a known sandbox limitation (2026-05-28).

How to apply: Set dangerouslyDisableSandbox: true on every git add and git commit call. This is a standing authorisation — no confirmation needed. See also Set SSH_AUTH_SOCK for git operations for the separate push/fetch issue.

Emacs 29.1 (Org mode 9.6.6)