* fix: warn about untracked scratch files left behind after a run
Fixes#551. Headless exec runs could leave behind debug/scratch files
(e.g. _fix_test.py, _debug.py) created by write_file during iteration,
which would then be silently swept up by a later git add -A.
- FileTracker now records brand-new files (RecordCreated/CreatedFiles),
distinct from the existing version-baseline tracking used for
conflict detection.
- write_file records a path as created only on first write, not on
overwrite of an existing file.
- After a headless run completes, exec.go checks git status for any
created file still present and untracked, and surfaces a warning via
the existing writer.warning() (works across text/-o json/stream-json).
No files are deleted automatically — a wrong guess at 'scratch' could
destroy real work, so this only surfaces what git already knows.
Co-authored-by: Copilot App <[email protected]>
* fix: address scratch warning review comments
* test: normalize created file tracker paths
* fix: track apply_patch-created scratch files
* fix: address scratch warning review feedback
* fix: tighten scratch warning lifecycle
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Co-authored-by: Copilot App <[email protected]>
