fix(treatment): show only past plans in history rail and refresh after lab send.

Co-authored-by: Cursor <cursoragent@cursor.com>

.cursor/skills/treatment-workspace/SKILL.md

@@ -70,7 +70,8 @@ Thin route: `app/[locale]/(dashboard)/treatment/page.tsx` (supports `?appointmen
 
 - **Not shipped to lab** — show treatments that have at least one lab-dependent detail (prosthesis via `labDependentCodes`) with `!sentAt`.
 - **Date** — filter on `treatmentAt` matching that local calendar day.
-- When **not shipped** is on and workspace is live (not browsing), prepend a synthetic **current draft** row (`id: 'current-draft'`) if it has pending lab-dependent details.
+- When **not shipped** is on, filters **already-fetched** history only (excludes the active appointment row).
+- **Previous treatments rail** excludes the active appointment; live draft stays in **Current draft** preview only. Refresh history after lab send.
 
 Helpers: `frontend/src/components/treatment/treatmentHistoryFilters.ts`.