Preserve exact checkout paths during historical release inspection

[devantler]

🤖 Generated by the Agentic Engineer

Problem

Historical release inspection succeeds in an ordinary checkout but fails in an otherwise identical checkout whose physical pathname ends in a newline. Shell capture removes bytes from the root pathname before re-entering it.

Reproduced against reviewed 739d01b using the actual command and isolated offline fixtures. This is one defect family; related input variants belong to this issue.

Proposed direction

Preserve complete physical pathnames through release inspection without modifying the caller checkout.

Acceptance criteria

Both checkouts inspect the same existing release successfully. Paths with ordinary spaces and newlines remain supported. Caller HEAD, index, configuration and worktree state are unchanged.

Size: Small.

Part of #101.

[devantler]

🤖 Generated by the Agentic Engineer

Delivered by #529 at signed merge 52e20bf. The current-head required checks and substantive review gates were complete before merge. Fresh protected-main fetch and immutable blob comparisons verified all eleven changed files match the reviewed implementation. Native command and workflow assessment controls exercised the active issue requirements. Production marketplace publication remains explicitly opt-in and is not claimed by these fixes.