Reference browser presentation and keyboard

Baseline: TortoiseGit 7338078f8ddd924b8cddee35f512f2286072136d, IDD_BROWSE_REFS, BrowseRefsDlg's column version 7, RefBrowserSortCol/RefBrowserSortDesc, FillListRefLeafs and PreTranslateMessage; ColumnManager's header menu and reset.

The native browser now saves the nine columns' order, widths and visibility in its supplied preference store. Branch Name remains visible and is excluded from the toggle menu, matching ColumnManager's first-column rule. Unknown/duplicated column IDs, invalid widths and malformed records fall back safely while preserving valid settings. Widths use native points, bounded to 40–10000; the JSON key is versioned independently of the Windows registry format.

Right-click the native header for Reset column order and the eight source column choices. Native resize/reorder and double-click sizing persist. Shift-double-click also includes the title in the measured width. Column changes preserve the table selection and vertical reading position; unchanged row data no longer causes an unnecessary table reload/recentering. Current branch bolding and exact reference identity remain part of the displayed-row signature.

The namespace/list splitter also remembers its width, with native minimum tree and list bounds; the filter spacer follows the actual divider. This macOS layout preference complements the source's saved window frame. Reset restores natural column order, default logical widths and visibility after the source Yes/No confirmation, while retaining the splitter and sort. Namespace refresh continues to force Tracked branch/Description visible for local branches and hidden outside them; other column choices persist. Reset in another namespace retains those conditional hides as a native adaptation.

Column-sort choices use the source numeric RefBrowserSortCol and exact TRUE RefBrowserSortDesc keys. Invalid stored values restore Name/ascending. Header sort indicators and row ordering follow the restored state in standalone and revision-picker windows. The existing native logical/numeric/string comparators remain; this does not establish exact Windows locale sorting.

F5 refreshes only the owning active browser. Ctrl-E and native Cmd-E focus/select the Filter field. Escape clears a nonempty active filter. Ctrl-A/Cmd-A select all when the multi-select reference list owns focus; text editors keep their normal selection handling, and single-selection pickers retain their restriction. F2 starts inline rename on the first selected local branch, including multi-selection, without replacing the visible selection. Name scrolling brings the editable label into view. Existing native Return/Escape rename completion remains in use.

Keyboard dispatch is scoped to the event window and current key-window provider. Busy, child/question, inline rename and retired owners reject competing actions. Header commands retain their layout revision and weak owner; stale or retired menus cannot change replacement settings. Reset questions retain the existing browser mutation/Quit lifetime until their owned continuation settles; normal Close is gated and forced closure settles the actual native question as No. Late accepted replies cannot change closed/replaced layouts.

Physical header dragging/sizing, keyboard layouts/VoiceOver, exact source geometry, minimum-OS and signed Finder/App Store acceptance remain open. These controls do not certify every Browse References dialog action or the whole application.

Grouped native evidence is recorded in the presentation QA record. The receiver exercises the actual AppKit header, table, splitter, keyboard dispatcher and private preferences, plus retained target, folder and inline-rename workflows with system and bundled Git. No Core changes or Core-suite repetition were needed.