Track historical local-path strings in pre-existing main commits

[falltwo]

Context

The tiered-access work found 14 Windows local-path strings across five commits that already exist in the public main history.

Current state

• The current branch tip and all additions made by the tiered-access branch are clean.
• The current-tip copies of the affected documentation/scripts no longer contain those local paths.
• Gitleaks v8.30.1 reported zero secret findings in both repository history and the working tree.
• The historical strings are local filesystem paths, not confirmed secrets.

Follow-up decision

The repository owner should decide separately whether rewriting already-public history is warranted. Do not rewrite history as part of the tiered-access pull request.

Acceptance criteria

• Review the five historical commits and classify the path disclosures.
• Document whether leaving history unchanged is acceptable.
• If rewriting is justified, plan it as a separately approved migration with collaborator coordination and rollback instructions.