1.728.1 (2026-06-17) Bug Fixes backend: purge workspace_diff cache on workspace delete (#9627) (8a3f69d) cli: fall back to esbuild-wasm on native host/binary mismatch (#9629) (86d1d16) frontend: persist session-editor draft path/summary edits + per-line diff tooltips (#9622) (e4bfeb2)