Reset global editor keybindings to defaults in beforeEach for
session-selector-rename and tree-selector tests. Pass
KeybindingsManager.inMemory() to SessionSelectorComponent in tests
to avoid reading user keybindings.json.
Closes#2360
* feat(coding-agent): add fold/unfold to tree branch navigation
Remap left/right arrow keys in the session tree to jump between branch
segment starts (first child of each branching point). Left on a foldable
node (root or segment start) folds it, hiding its descendants. Right on
a folded node unfolds it. Nested fold state is preserved. Search and
filter changes reset all folds.
Folded branches show ⊞ in the connector (├⊞/└⊞) or as a prefix for
roots. Active path marker • appears after the fold indicator.
Add Page Up/Down support for paging through the tree list, consistent
with session selector and config selector.
* feat(coding-agent): improve tree branch folding closes#1724
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Co-authored-by: Sviatoslav Abakumov <dust.harvesting@gmail.com>
* fix(coding-agent): tree selector focuses nearest visible ancestor
When the selected entry is not visible (filtered out by mode change or a
metadata entry like model_change), walk up the parent chain to find the
nearest visible ancestor instead of jumping to the last item.
Fixes selection behavior for:
- Initial selection when currentLeafId is a metadata entry
- Filter switching, e.g. Ctrl+U for user-only mode
* fix(coding-agent): tree selector preserves selection through empty filters
When switching to a filter with no results, e.g. labeled-only with no
labels and back, the cursor would reset to the first message instead of
the original selection.
Track lastSelectedId as a class member and only update it when
filteredNodes is non-empty, preserving the selection across empty filter
results.
* test(coding-agent): add tree selector filter and selection tests
- Test metadata entry handling (model_change, thinking_level_change)
- Test filter switching with parent traversal (default ↔ user-only)
- Test empty filter preservation (labeled-only with no labels)
