improvement: some files replaced, lots of them i shall say. AGENT.MD file created. some rules and skills added for cursor agent.

frontend/src/components/appointments/appointmentPurposeStyles.ts

@@ -0,0 +1,39 @@
+import type { CSSProperties } from 'react';
+import type { TreatmentCatalogEntry } from '@/types/treatment-catalog';
+import {
+  treatmentTypeBannerStyle,
+  treatmentTypeLabelFromCatalog,
+  treatmentTypeSwatchStyle,
+} from '@/components/shared/treatmentTypeDisplay';
+
+/**
+ * Appointment purposes are treatment-type codes. Labels and colors now come from
+ * the shared treatment catalog + palette so the appointment and treatment
+ * features stay in sync. These helpers adapt the shared palette to the appointment
+ * components' call sites.
+ */
+
+export function purposeLabel(
+  purpose: string,
+  catalog: TreatmentCatalogEntry[],
+): string {
+  return treatmentTypeLabelFromCatalog(purpose, catalog);
+}
+
+/** Inline style for a colored appointment banner/block. */
+export function purposeBannerStyle(
+  purpose: string,
+  catalog: TreatmentCatalogEntry[],
+): CSSProperties {
+  const index = catalog.findIndex((e) => e.code === purpose);
+  return treatmentTypeBannerStyle(purpose, index);
+}
+
+/** Inline style for a small legend swatch. */
+export function purposeSwatchStyle(
+  purpose: string,
+  catalog: TreatmentCatalogEntry[],
+): CSSProperties {
+  const index = catalog.findIndex((e) => e.code === purpose);
+  return treatmentTypeSwatchStyle(purpose, index);
+}