improvement: notify counter badge added to treatment and tasks tabs for upadted and edited cases.

.cursor/rules/lab-notifications.mdc

@@ -0,0 +1,14 @@
+---
+description: Lab tab badges — activity model, tab-counts API, read cursors
+globs: backend/src/modules/notifications/**,backend/src/common/lab-case-activity.ts,frontend/src/lib/hooks/useTabBadgeCounts.ts,frontend/src/lib/tabBadgeUtils.ts,frontend/src/lib/api/notifications.ts,frontend/src/components/ui/shared/NavBadgePill.tsx,frontend/src/components/ui/shared/Sidebar.tsx
+alwaysApply: false
+---
+
+# Lab tab badges
+
+- **Split counts (Option B):** Lab Cases = sent + clinic comments + important; Lab Tasks = completions + lab comments; Clinic Treatment = visible lab comments + completions.
+- **API:** `GET /notifications/tab-counts`; Tasks/Treatment mark read on tab visit; Cases uses per-case read + `hasUnread` on list cards.
+- **Pattern:** `useTabBadgeCounts` + `notifyTabBadgesChanged()` — same shape as `usePendingConnectionsCount`.
+- **Orgs connections badge** stays on separate `pending-count` endpoint.
+
+Full map: `.cursor/skills/lab-notifications/SKILL.md`

.cursor/skills/lab-notifications/SKILL.md

@@ -0,0 +1,56 @@
+---
+name: dyolink-lab-notifications
+description: Lab case activity feed + sidebar tab badge counts. Use when changing notifications API, LabCaseActivity, read state, or Sidebar badges for Cases/Tasks/Treatment.
+---
+
+# Lab notifications (tab badges)
+
+Backend: [`backend/src/modules/notifications/`](backend/src/modules/notifications/)  
+Activity types: [`backend/src/common/lab-case-activity.ts`](backend/src/common/lab-case-activity.ts)  
+Frontend hook: [`frontend/src/lib/hooks/useTabBadgeCounts.ts`](frontend/src/lib/hooks/useTabBadgeCounts.ts)
+
+## Models
+
+- **`LabCaseActivity`** — append-only events: `CASE_SENT`, `CLINIC_COMMENT`, `LAB_COMMENT`, `CASE_IMPORTANT`, `CASE_AMENDED` (stub for Step 7), `TASK_COMPLETED`
+- **`LabCaseUserTabReadState`** — per user/org/tab cursor (`TASKS` | `TREATMENT`) for sidebar badge clearing on tab visit. **Cases tab** uses per-case read instead (see below).
+- **`LabCaseUserReadState`** — per user/org/labCase cursor; drives Cases tab count and `hasUnread` on case list cards
+
+## Tab badge buckets (Option B — split lab counts)
+
+| Org | Tab | Activity types |
+|-----|-----|----------------|
+| LAB | Cases | `CASE_SENT`, `CLINIC_COMMENT`, `CASE_IMPORTANT` |
+| LAB | Tasks | `TASK_COMPLETED`, `LAB_COMMENT` |
+| CLINIC | Treatment | `LAB_COMMENT` (only `visibleToClinic`), `TASK_COMPLETED` |
+
+Counts exclude events where `actorUserId === current user`. Clinic `LAB_COMMENT` counts only when `payload.visibleToClinic === true`.
+
+## APIs
+
+- `GET /notifications/tab-counts` → `{ cases?, tasks?, treatment? }` — **Cases** count = number of cases with unread Cases-bucket activity (per-case read cursor)
+- `POST /notifications/mark-tab-read` `{ tab }` — Tasks + Treatment only (Cases skips tab-level clear)
+- `POST /notifications/mark-case-read` `{ labCaseId }` — opening a case clears that case’s unread dot and updates Cases tab count
+
+## Emit activity from
+
+| Event | Service |
+|-------|---------|
+| First send | `treatments.service` `sendLabCase` → `CASE_SENT` |
+| Comment | `lab-case-comments.service` → `CLINIC_COMMENT` / `LAB_COMMENT` |
+| Mark important | `cases.service` `updateImportant` (only when set true) → `CASE_IMPORTANT` |
+| Task completed | `tasks.service` `updateStatus` → `TASK_COMPLETED` |
+
+After mutations, frontend calls `notifyTabBadgesChanged()` (window event).
+
+## Frontend pattern (same as org connections)
+
+- `useTabBadgeCounts()` — fetch on pathname change + `tab-badges-changed` event
+- `useMarkTabReadOnVisit()` — Tasks + Treatment pages only (Cases badge clears when opening unread cases)
+- `NavBadgePill` in [`Sidebar.tsx`](frontend/src/components/ui/shared/Sidebar.tsx)
+- **Organizations** pending connections still use `usePendingConnectionsCount` (separate pending-state API)
+
+## Out of scope (later steps)
+
+- Push / email / websockets
+- Activity feed UI (Step 6)
+- `CASE_AMENDED` emit (Step 7)

.cursor/skills/lab-tasks/SKILL.md

@@ -86,6 +86,10 @@ Keep changes minimal — match existing `sm:` breakpoint patterns elsewhere in t
 - **Tasks filters:** filter `<select>`s use the same 44px mobile height as other form controls.
 - **Treatment lab dispatch:** shipment card `p-3 sm:p-4`; **Send to lab** is `w-full sm:w-auto`.
 
+## Tab badges
+
+See `.cursor/skills/lab-notifications/SKILL.md` — split lab Cases/Tasks counts, clinic Treatment; `useTabBadgeCounts` + `notifyTabBadgesChanged`.
+
 ## Permissions
 
 `TAB_TASKS_READ` / `TAB_TASKS_EDIT`; `LabOrgGuard` on all task routes.