v2026.08.05.03 – v2026.08.05.05 — 2026-08-05¶

feat(demo): Phase 1 — DEMO_MODE flag, fail-closed agent stub, worker skips
docs: demo-instance design (DEMO_MODE + fail-closed agent stub, reset, security)
docs(roadmap): record demo-instance concept (DEMO_MODE + stub agent)
fix(migrate)+feat(demo): flat column names + demo Phase 2 external gates
feat(demo): auto-login buttons + restricted demo-admin role