Supported Patch Replay Planning

Read-only patch replay handles the current conservative operation subset, including DC-12 arbitrary-span text edits.

The command is:

prikk checkout --patch-plan [path] [--ref REF]

It walks the single-parent block chain from oldest to newest, loads any snapshot Blob attached to a block, and applies supported Patch operations in block patch order.

Supported operations:

• CreateFile
• DeleteFile
• EditText for deterministic content-anchored arbitrary spans
• ReplaceBinary (DC-73)
• ChangePerm (DC-73)

Unsupported operations still fail the plan clearly:

• RenamePath — not a node-model gap: commit never authors it, renames become delete+create
• CreateSymlink — not a node-model gap: symlink authoring is refused outright
• merge/conflict algebra

This command does not write the worktree. It only proves that the current sealed history can be replayed into an in-memory snapshot manifest using the operation subset implemented so far.