apps/web/src/components/DiffPanel.tsx  | 245 +++++++++++++++++---------------
 apps/web/src/lib/diffRendering.test.ts |  23 +++
 apps/web/src/lib/diffRendering.ts      |  24 ++++
 apps/web/src/workers/diffs.worker.ts   |   1 +
 4 files changed, 179 insertions(+), 114 deletions(-)