improvement: treatment plan turned into a wizard. shift+click control added to FDI tooth chart for cunnected prosthesises.

backend/src/modules/treatments/treatment.utils.ts

@@ -20,6 +20,42 @@ export function normalizeTeeth(teeth: unknown): string[] {
   return [...unique].sort();
 }
 
+export type ToothSelectionGroupNormalized = {
+  groupId: string;
+  kind: 'connected' | 'single';
+  teeth: string[];
+};
+
+export function normalizeToothSelectionGroups(
+  value: unknown,
+  fallbackTeeth: string[] = [],
+): ToothSelectionGroupNormalized[] {
+  if (Array.isArray(value) && value.length > 0) {
+    const out: ToothSelectionGroupNormalized[] = [];
+    for (const row of value) {
+      if (!row || typeof row !== 'object') continue;
+      const rec = row as Record<string, unknown>;
+      const groupId = typeof rec.groupId === 'string' && rec.groupId.trim() ? rec.groupId.trim() : '';
+      if (!groupId) continue;
+      const kind = rec.kind === 'connected' ? 'connected' : 'single';
+      const teeth = normalizeTeeth(rec.teeth);
+      if (teeth.length === 0) continue;
+      out.push({
+        groupId,
+        kind: kind === 'connected' && teeth.length < 2 ? 'single' : kind,
+        teeth,
+      });
+    }
+    if (out.length > 0) return out;
+  }
+
+  return fallbackTeeth.map((tooth, index) => ({
+    groupId: `legacy-${tooth}-${index}`,
+    kind: 'single' as const,
+    teeth: [tooth],
+  }));
+}
+
 export function generateTreatmentTitle(
   cases: { treatmentType: string; teeth: string[] }[],
 ): string {