Staged edits from another machine no longer include file contents

What

Edit and Write are the tools Claude uses to change and create files. An edit can be staged for review, meaning it is held for you to approve rather than applied straight away.

• When a staged Edit or Write came from a remote call or from another machine, the result no longer includes the file's contents or the diff (the list of changed lines). originalFile is null, structuredPatch is empty, and oldString/newString are taken from the raw request.
• A staged Write from your own machine now gets a real diff, where before it was always empty. The diff is still left out when the call is remote, the file does not exist, or the file is large.
• Edit and Write both run a new check on the file path and permissions before working, and stop with that check's message if it refuses.

Why

File contents are no longer sent back in staged-review results for calls from another machine, local staged writes now show what they would change, and some paths may now be refused.