improvement: fdi tooth chart selection modes polished. bugs related to teeth selecyion fixed.

AGENTS.md

@@ -45,23 +45,23 @@ frontend/src/
 **Treatment edit / details (quick ref):**
 - Day/mode gate: editable only for live draft on today/future (`canEditTreatmentForDay`). Past day / historical load → read-only form.
 - Sent-to-lab detail locks that line; **Add detail** still OK same day; **Remove detail** = trash icon on each detail chip (not in the wizard Content step) — only unsent and not the last line. Attachment upload blocked when sent (`TREATMENT_DETAIL_SENT`).
-- **Entry wizard:** `WizardStepper` — Teeth → Content → Lab; Lab step only when active detail type is lab-dependent (prosthesis); entering Lab auto-opens shipment draft (no Add-shipment CTA). Content notes field label is **Notes** (clinical). Detail chips ≠ wizard chrome.
-- **Tooth selection:** Shift+click same-arch range = connected group (linked dots); Ctrl/⌘+click same range = individual singles (one lab row each); plain click on a connected tooth collapses the whole span to that single tooth (no peel). Helpers: `toothSelectionGroups.ts`. Connected label: `ConnectedSelectionBadge` (shared `Badge` + primary tint).
+- **Entry wizard:** `WizardStepper` — Teeth → Content → Lab; Lab step only when active detail type is lab-dependent (prosthesis); entering Lab auto-opens shipment draft (no Add-shipment CTA). Content notes field label is **Notes** (clinical). Detail chips ≠ wizard chrome. Switching detail chips resets wizard to Teeth unless `pendingEntryStepRef` requests Lab (e.g. opening a case from the lab shipments rail).
+- **Tooth selection:** Shift+click same-arch range = connected bridge (one lab row); overlapping Shift bridges merge by union. Plain click add/remove singles; click in a bridge cuts that tooth out as a selected single (ends keep one bridge; middle splits into two). Never a 1-tooth connected (no lone dots). Helpers: `toothSelectionGroups.ts`. Connected label: `ConnectedSelectionBadge`. After send, Cases/Tasks merge teeth by prosthesis type.
 - **Lab dispatch layout:** due date beside title (`justify-between`, logical start/end for RTL); prosthesis type on same row as teeth from `md:` up (stacked on mobile).
 
 **Treatment lab rules (quick ref):**
 - Lab-dependent details (e.g. prosthesis) **without teeth** can save but **cannot ship** — show `LabShipmentBlockedNotice` + inline banner; toast on dispatch add.
 - Detail treatment type need **not** match appointment purpose — purpose only pre-fills new details.
 - **History filters** are client-side only (`treatmentHistoryFilters.ts`): “Not shipped to lab” + single date on already-fetched patient history; includes live current draft when filtering.
-- **Lab shipments rail**: unified list with scope toggle **This patient** vs **All updates** (unread across org for **this clinician's cases only**, includes patient name).
+- **Lab shipments rail**: unified list with scope toggle **This patient** vs **All updates** (unread across org for **this clinician's cases only**, includes patient name). Opening a case from the rail jumps to the entry wizard **Lab** step.
 - **Unread semantics**: Treatment tab badge = count of unread cases **for the user's own treatment plans** (per-case read cursor) and clears when a case is opened/marked read (not on tab visit).
 - **Lab shipment progress + comments**: shown in **Lab dispatch panel** for the active shipment; expanding activity / opening comments marks that case read. Shared UI: `LabCaseCommentsPanel` — newest first; sent = start / received = end (`text-start`/`justify-start`, RTL-safe); pass `viewerSide`.
 
 **Appointments (quick ref):** Do not delete (or change patient) when `hasTreatment`; codes `APPOINTMENT_HAS_TREATMENT` / `APPOINTMENT_PATIENT_LOCKED`. Past days: no new bookings; edit/delete OK without treatment; with treatment → toast. Appointment delete does not cascade-delete treatments. See `.cursor/rules/appointments.mdc`.
 
-**Lab Tasks tab:** Newest case first; steps ordered 1→N; case grouping when sorted by date; `stepCompleted` filter; prosthesis colors from catalog; task assignment in **Cases** (compact row: status + assignee + last update); on **Tasks**, all staff see every task but only assignee (or unassigned pool) can change status — others see “Assigned to {name}” instead of the status dropdown; **case due dates** set/edited in clinic Treatment lab dispatch, shown on lab Cases/Tasks with overdue filter + sort; **mobile:** larger task status controls, sticky case header when grouped; **tab badges:** `LabCaseActivity` + `GET /notifications/tab-counts` (lab Cases/Tasks split, clinic Treatment) — see `.cursor/skills/lab-tasks/SKILL.md` and `.cursor/skills/lab-notifications/SKILL.md`.
+**Lab Tasks tab:** Newest case first; steps ordered 1→N; case grouping when sorted by date; `stepCompleted` filter; prosthesis colors from catalog; task assignment in **Cases** (compact row: status + assignee + last update); on **Tasks**, all staff see every task but only assignee (or unassigned pool) can change status — others see “Assigned to {name}” instead of the status dropdown; **case due dates** set/edited in clinic Treatment lab dispatch, shown on lab Cases/Tasks with overdue filter + sort; completing **`intraoral_scan`** completes every scan task in that case (case-scoped; catalog first step for all prosthesis types); **mobile:** larger task status controls, sticky case header when grouped; **tab badges:** `LabCaseActivity` + `GET /notifications/tab-counts` (lab Cases/Tasks split, clinic Treatment) — see `.cursor/skills/lab-tasks/SKILL.md` and `.cursor/skills/lab-notifications/SKILL.md`.
 
-**Lab Cases tab:** Filter by **prosthesis type** (not treatment type); auto-select newest case on open; list cards use `LabCaseProsthesisGroupsList` (colored type + teeth, shared with Treatment rail). Deep link: `?caseId=`, `?clinicOrganizationId=`. **Share link:** QR + URL on sent cases (attachment left, QR right); opens `/lab-case/[token]` focus page. See `.cursor/skills/lab-cases/SKILL.md` and `.cursor/skills/lab-case-share-link/SKILL.md`.
+**Lab Cases tab:** Filter by **prosthesis type** (not treatment type); auto-select newest case on open; list **10 per page**; left rail list fills column height (`flex-1 overflow-y-auto`); list cards use `LabCaseProsthesisGroupsList` (colored type + teeth, shared with Treatment rail). Deep link: `?caseId=`, `?clinicOrganizationId=`. **Share link:** QR + URL on sent cases (attachment left, QR right); opens `/lab-case/[token]` focus page. See `.cursor/skills/lab-cases/SKILL.md` and `.cursor/skills/lab-case-share-link/SKILL.md`.
 
 **Lab case share link (quick ref):**
 - Token on first ship → `/{locale}/lab-case/{token}` after login.