* perf(app): make diff line wrapping responsive on large changes
Wrapping eagerly shaped every expanded line before the viewport could paint. Estimate off-screen heights and measure rows as they enter the window, preserving the scroll anchor as geometry becomes exact. Add shared layout and browser benchmarks to track toggle latency and shaping cost.
* fix(app): preserve wrapped diff anchors across bounded relayouts
Resizing can move the viewed row outside the old materialization window. Keep its estimated wrap geometry available to anchor resolution, and measure the anchored row in the same layout pass so inaccurate estimates cannot discard the exact fragment or pixel offset.
* perf(app): reduce avoidable work when opening large diffs
Large snapshots were recursively reconstructed for reference stability, while native scroll worklets captured complete file models. Preserve identity at the data producers and prepare text for the visible window without rebuilding unchanged files.
* test(app): await commit diff query completion without polling
* chore(app): remove profiling artifacts from the source tree
* perf(app): keep large diffs responsive
Render file headers on the canvas and bound expensive text shaping to the active viewport while preserving sticky, hover, and horizontal-scroll behavior. Let native scroll cancellation arbitrate header presses so finger scrolling cannot expand files.
* test(app): assert canvas diff header accessibility
* test(app): assert canvas diff header semantics
Mohamed Boudra