feat(overdracht): E0 + E1 - Database setup en API nursing logs

Epic 0 - Database Setup:
- nursing_logs tabel met indexes en constraints
- RLS policies (SELECT/INSERT/UPDATE/DELETE)
- TypeScript types gegenereerd

Epic 1 - API Nursing Logs:
- GET/POST /api/nursing-logs (lijst + aanmaken)
- PATCH/DELETE /api/nursing-logs/[id] (bewerken + verwijderen)
- Zod validatie schemas
- Automatische shift_date berekening

Documentatie:
- PRD, FO, TO en Bouwplan voor Overdracht Dashboard

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

lib/types/nursing-log.ts

@@ -0,0 +1,114 @@
+import { z } from 'zod';
+import type { Database } from '@/lib/supabase/database.types';
+
+// Database types
+export type NursingLog = Database['public']['Tables']['nursing_logs']['Row'];
+export type NursingLogInsert = Database['public']['Tables']['nursing_logs']['Insert'];
+export type NursingLogUpdate = Database['public']['Tables']['nursing_logs']['Update'];
+
+// Category enum
+export const NURSING_LOG_CATEGORIES = [
+  'medicatie',
+  'adl',
+  'gedrag',
+  'incident',
+  'observatie',
+] as const;
+
+export type NursingLogCategory = (typeof NURSING_LOG_CATEGORIES)[number];
+
+// Zod schemas for validation
+export const NursingLogCategorySchema = z.enum(NURSING_LOG_CATEGORIES);
+
+export const CreateNursingLogSchema = z.object({
+  patient_id: z.string().uuid('Patient ID moet een geldige UUID zijn'),
+  category: NursingLogCategorySchema,
+  content: z
+    .string()
+    .min(1, 'Notitie mag niet leeg zijn')
+    .max(500, 'Notitie mag maximaal 500 karakters bevatten'),
+  timestamp: z.string().datetime().optional(),
+  include_in_handover: z.boolean().default(false),
+});
+
+export type CreateNursingLogInput = z.infer<typeof CreateNursingLogSchema>;
+
+export const UpdateNursingLogSchema = z.object({
+  category: NursingLogCategorySchema.optional(),
+  content: z
+    .string()
+    .min(1, 'Notitie mag niet leeg zijn')
+    .max(500, 'Notitie mag maximaal 500 karakters bevatten')
+    .optional(),
+  timestamp: z.string().datetime().optional(),
+  include_in_handover: z.boolean().optional(),
+});
+
+export type UpdateNursingLogInput = z.infer<typeof UpdateNursingLogSchema>;
+
+// Response types
+export interface NursingLogListResponse {
+  logs: NursingLog[];
+  total: number;
+}
+
+// Category display configuration
+export const CATEGORY_CONFIG: Record<
+  NursingLogCategory,
+  {
+    label: string;
+    icon: string;
+    color: string;
+    bgColor: string;
+    textColor: string;
+  }
+> = {
+  medicatie: {
+    label: 'Medicatie',
+    icon: 'Pill',
+    color: 'blue',
+    bgColor: 'bg-blue-100',
+    textColor: 'text-blue-700',
+  },
+  adl: {
+    label: 'ADL/verzorging',
+    icon: 'Utensils',
+    color: 'green',
+    bgColor: 'bg-green-100',
+    textColor: 'text-green-700',
+  },
+  gedrag: {
+    label: 'Gedragsobservatie',
+    icon: 'User',
+    color: 'purple',
+    bgColor: 'bg-purple-100',
+    textColor: 'text-purple-700',
+  },
+  incident: {
+    label: 'Incident',
+    icon: 'AlertTriangle',
+    color: 'red',
+    bgColor: 'bg-red-100',
+    textColor: 'text-red-700',
+  },
+  observatie: {
+    label: 'Algemene observatie',
+    icon: 'FileText',
+    color: 'gray',
+    bgColor: 'bg-gray-100',
+    textColor: 'text-gray-700',
+  },
+};
+
+// Helper function to calculate shift_date from timestamp
+export function calculateShiftDate(timestamp: Date | string): string {
+  const date = typeof timestamp === 'string' ? new Date(timestamp) : timestamp;
+  const hours = date.getHours();
+
+  // Night shift (before 7:00) belongs to previous day
+  if (hours < 7) {
+    date.setDate(date.getDate() - 1);
+  }
+
+  return date.toISOString().split('T')[0];
+}