Why: establish the authorized task workspace and its initial baseline.
Evidence: preserved precheck receipt in .task/feature-svc-login-recovery-flow.md; R0=3fb8210f6495a78e70a67af3661bdfe9c00fb9de.
Impact: task metadata only; the feature workspace starts at 3fb8210f64.
Refs: .task/feature-svc-login-recovery-flow.md