to-ticketslisted

# To tickets Vertical slices, not layers. Each ticket is demoable. Each names what blocks it. Open issues on the owning service. Label `ready-for-agent`. Quiz the human before publishing. Do not write local scratch ticket files. ## Issue body ## What to build End-to-end behavior from the user's perspective. ## Acceptance criteria - [ ] ... ## Blocked by None, or links to blocking issues. No stale file paths in the body.