apps/web/src/components/chat/ChangedFilesTree.test.tsx        |  71 +++++++++++-
 apps/web/src/components/chat/ChangedFilesTree.tsx             | 189 +++++++++++++++++++++++---------
 apps/web/src/components/chat/DiffStatLabel.tsx                |  10 +-
 apps/web/src/components/chat/MessagesTimeline.test.tsx        |  12 +-
 apps/web/src/components/chat/MessagesTimeline.tsx             | 107 +++++-------------
 apps/web/src/components/chat/changedFilesPresentation.test.ts |  69 ++++++++++++
 apps/web/src/components/chat/changedFilesPresentation.ts      | 102 +++++++++++++++++
 apps/web/src/uiStateStore.test.ts                             |  29 +++--
 apps/web/src/uiStateStore.ts                                  |  54 ++-------
 9 files changed, 455 insertions(+), 188 deletions(-)