feat: implement Git-style node references and progressive IDs#1

bwl merged 1 commit intomasterbwl/forest:masterfrom

claude/optimize-uuid-shortcodes-011CULmz3EBo3XBgEHCKh6kMbwl/forest:claude/optimize-uuid-shortcodes-011CULmz3EBo3XBgEHCKh6kMCopy head branch name to clipboard