The Copy button (enabled once >=1 file is fully classified) copies the mapped
files into a user-chosen output directory under their canonical names/layout
<party>/{received,issued}/<transmittal>/<filename> — reading the source, never
writing it.
- copy.js: plan() (complete, non-excluded files) → conflict scan (two sources
→ same output path are reported + skipped) → copyTo() engine on the generic
FS-Access shape (ensureDir + getFileHandle + createWritable). Per-file dedup:
identical target (sha256) is skipped; existing-but-different is left
untouched and reported; live footer progress; completion toast.
- app.js: restores the saved map on launch (keyed by source-relative path, so
it re-attaches when the same directory is re-opened) and persists the source
handle on open; Copy button wired.
- target-tree.js: enables/labels the Copy button from the done count.
- 2 copy-engine tests with mock FS handles (copy/skip/differ + conflict);
24 classify+classifier tests green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
