Why: Approved r1.1 still auto-reports background completion and the live timeline repeats progress. This draft proposes one task card per background job and waits for review before any product change.
Evidence: SELF source audit against Backend 0a57853 and Frontend 5ab8143. No tests run; this change is documentation only.
Impact: Proposal, implementation plan, and index only. r1.1 stays effective until review. No product code.
Refs: Dev feature/fast-slow-r2-nonblocking
Co-authored-by: Cursor <cursoragent@cursor.com>