One session holds several open documents. The active document stays in
the Session's own fields, so commands and the UI keep working on it; the
others are parked as DocState values and swapped in field by field
(std::mem::swap, no clones or relayout). Session and DocState are
destructured exhaustively, so a new field must be classified as per
document or shared before it builds.
- Session::documents, activate, add_document, close_document,
is_untouched_blank, with_document, find_open, is_open; DocInfo.
- Document ids come from a process-wide counter.
- file.new opens beside the open documents; file.open replaces an
untouched blank document, opens beside the others otherwise, and
activates a file that is already open ("alreadyOpen": true).
- file.closeDocument {id?, force?} closes a document without a window
(refuses unsaved changes unless forced); file.close is unchanged.
- view.switchWindows {id?} lists the open documents or activates one.
- Envelopes, Labels, Finish & Merge and New from Template open their
result as a new document; the main document stays open, with no undo
step for the command.
- Each document keeps its own recovery worker and copy; Read Aloud
readings name their document; with_document tags UI requests with the
document they came from.
ROADMAP.md: the PR's status entry prepended to main's first status line. docs/parity-checklist.md: main's side, regenerated after the merges. ko.tsv: union.
crates/ui-egui/src/backstage.rs: t03's bidi_display on the Recent names over t09's borrowed name/path. people.toml: union. Tests: both tracks' tests kept whole. Docs: status lines combined, rows unioned or word-merged.
docs/gaps.md row 4: one row (t06 had kept a second, older copy of it); t05's #1840 and t06's #2964 clauses both in, main's #2963 clause kept. docs/recovery.md: t06's retry sentence with t01's base64 size text. Test files: both tracks' tests kept whole.
crates/pdf/src/lib.rs: t01's vector_text kept before t05's watermark (box area signature). Test files and canvas.rs tests: both tracks' tests kept whole. Docs: status lines combined, rows unioned or word-merged.
crates/docx/tests/fixtures.rs: union, keeps main's shape-gradient test and the PR's band-size tests.
ROADMAP.md, docs/file-format-parity.md: main's status lines with this change added to the newest; log rows from both sides in date order.
crates/ui-egui/src/lib.rs: kept main's removal of the Focus Escape block from logic() (Escape handling moved in #1733); took #3434's comment on the Recent/Save As error reset.
crates/engine/src/cmd/references.rs: Update Field keeps both the DOCPROPERTY (#1851) and FILENAME arms.
crates/layout/src/tests.rs: main's #2048 tests and the PR's cache tests kept.
ROADMAP.md: status line kept main's, #3234's change added as a previous change; both progress-log and revision rows.
docs/ui-parity.md: status line kept main's, #3234's change added as a previous change; Ribbon row keeps main's text plus the forms-protection sentence; both revision rows.
crates/ui-egui/src/objects.rs: kept both new functions (dragged_off_page from main, drop_point from the PR).
ROADMAP.md, docs/ui-parity.md: status lines keep main's with the PR's item added; log rows union.
ROADMAP.md: both progress-log rows, #2692's under main's newest 2026-10-17 row.
docs/gaps.md: status line kept main's, #2692's change added as a previous change.
ROADMAP.md: main's status line kept; both progress-log lines added.
docs/target-app-parity.md: main's status line and Tables row kept, #1596 sentence added to the row; log row added.
aiongg