feature: a very minimal patients feature implemented. it needs lots of improvments though

frontend/src/components/patients/CreatePatientModal.tsx

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+'use client';
+
+import { Button } from '@/components/ui/Button';
+import { Input } from '@/components/ui/Input';
+import { CreatePatientInput } from '@/types/patient';
+
+interface CreatePatientModalProps {
+  isOpen: boolean;
+  formData: CreatePatientInput;
+  onChange: (patch: Partial<CreatePatientInput>) => void;
+  onSubmit: () => void;
+  onClose: () => void;
+  loading?: boolean;
+}
+
+export function CreatePatientModal({
+  isOpen,
+  formData,
+  onChange,
+  onSubmit,
+  onClose,
+  loading = false,
+}: CreatePatientModalProps) {
+  if (!isOpen) {
+    return null;
+  }
+
+  return (
+    <div className="surface-card p-4 space-y-3">
+      <div className="grid grid-cols-1 md:grid-cols-2 gap-3">
+        <Input
+          label="First name"
+          value={formData.firstName || ''}
+          onChange={(e) => onChange({ firstName: e.target.value })}
+        />
+        <Input
+          label="Last name"
+          value={formData.lastName || ''}
+          onChange={(e) => onChange({ lastName: e.target.value })}
+        />
+        <Input
+          label="Phone"
+          value={formData.phone || ''}
+          onChange={(e) => onChange({ phone: e.target.value })}
+        />
+        <Input
+          label="Email"
+          type="email"
+          value={formData.email || ''}
+          onChange={(e) => onChange({ email: e.target.value })}
+        />
+      </div>
+
+      <div className="flex gap-2">
+        <Button
+          variant="primary"
+          onClick={onSubmit}
+          isLoading={loading}
+          disabled={!formData.firstName || !formData.lastName}
+        >
+          Save Patient
+        </Button>
+        <Button variant="ghost" onClick={onClose}>
+          Cancel
+        </Button>
+      </div>
+    </div>
+  );
+}

frontend/src/components/patients/PatientSearchSelect.tsx

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+'use client';
+
+import { Search } from 'lucide-react';
+import { Input } from '@/components/ui/Input';
+import { Patient } from '@/types/patient';
+
+interface PatientSearchSelectProps {
+  search: string;
+  onSearchChange: (value: string) => void;
+  patients: Patient[];
+  selectedPatientId?: string;
+  onSelectPatient: (patient: Patient) => void;
+  loading?: boolean;
+}
+
+export function PatientSearchSelect({
+  search,
+  onSearchChange,
+  patients,
+  selectedPatientId,
+  onSelectPatient,
+  loading = false,
+}: PatientSearchSelectProps) {
+  return (
+    <div className="surface-card p-4 space-y-4">
+      <Input
+        placeholder="Search patients by name, phone, email"
+        value={search}
+        onChange={(e) => onSearchChange(e.target.value)}
+        icon={<Search className="h-4 w-4 icon-flat" />}
+      />
+
+      <div className="space-y-2 max-h-80 overflow-y-auto">
+        {loading && <p className="text-sm text-text-muted">Loading patients...</p>}
+
+        {!loading && patients.length === 0 && (
+          <p className="text-sm text-text-muted">No patients found for this search.</p>
+        )}
+
+        {patients.map((patient) => {
+          const isSelected = selectedPatientId === patient.id;
+          return (
+            <button
+              key={patient.id}
+              type="button"
+              onClick={() => onSelectPatient(patient)}
+              className={`w-full text-left rounded-[var(--radius-sm)] border px-3 py-2 transition-colors ${
+                isSelected
+                  ? 'bg-primary-soft border-primary/60'
+                  : 'border-border/60 hover:bg-background-card/70'
+              }`}
+            >
+              <p className="text-sm font-medium text-text-primary">
+                {patient.firstName} {patient.lastName}
+              </p>
+              <p className="text-xs text-text-muted">{patient.phone || patient.email || 'No contact'}</p>
+            </button>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

frontend/src/components/patients/PatientSummaryCard.tsx

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+import { Patient } from '@/types/patient';
+
+interface PatientSummaryCardProps {
+  patient?: Patient;
+}
+
+export function PatientSummaryCard({ patient }: PatientSummaryCardProps) {
+  if (!patient) {
+    return (
+      <div className="surface-card p-4">
+        <p className="text-sm text-text-muted">Select a patient to view details.</p>
+      </div>
+    );
+  }
+
+  return (
+    <div className="surface-card p-4 space-y-2">
+      <h2 className="text-lg font-semibold text-text-primary">
+        {patient.firstName} {patient.lastName}
+      </h2>
+      <p className="text-sm text-text-secondary">Phone: {patient.phone || '-'}</p>
+      <p className="text-sm text-text-secondary">Email: {patient.email || '-'}</p>
+      <p className="text-sm text-text-secondary">
+        Status: {patient.isActive ? 'Active' : 'Inactive'}
+      </p>
+    </div>
+  );
+}

frontend/src/components/patients/TreatmentHistoryPreview.tsx

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+import { TreatmentHistoryItem } from '@/types/patient';
+
+interface TreatmentHistoryPreviewProps {
+  items: TreatmentHistoryItem[];
+  loading?: boolean;
+}
+
+export function TreatmentHistoryPreview({ items, loading = false }: TreatmentHistoryPreviewProps) {
+  return (
+    <div className="surface-card p-4 space-y-3">
+      <h3 className="text-base font-semibold text-text-primary">Treatment History</h3>
+
+      {loading && <p className="text-sm text-text-muted">Loading treatment history...</p>}
+
+      {!loading && items.length === 0 && (
+        <p className="text-sm text-text-muted">No treatment history yet.</p>
+      )}
+
+      <div className="space-y-2">
+        {items.map((item) => (
+          <div key={item.id} className="border border-border/60 rounded-[var(--radius-sm)] p-3">
+            <div className="flex items-center justify-between">
+              <p className="text-sm font-medium text-text-primary">{item.title}</p>
+              <p className="text-xs text-text-muted">
+                {new Date(item.treatmentAt).toLocaleDateString()}
+              </p>
+            </div>
+            <p className="text-xs text-text-secondary mt-1">
+              Status: {item.status}
+              {item.tooth ? ` | Tooth: ${item.tooth}` : ''}
+            </p>
+          </div>
+        ))}
+      </div>
+    </div>
+  );
+}