New §2g explains field persistence (keystroke → model → 600ms snapshot debounce; blur only marks touched, never saves) and §6a refreshes the stale backend section with the real request lifecycle (NSwag client, httpClientFetch seam, read/write traces) — both with relative links to the source files. Add discovery pointers from the learning path (lesson 2.2 and the capstone). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>