Chore: Upgrade to Angular v18

Chore: Upgrade to Python 3.12
Chore: Upgrade to psycopg3

bookie/src/app/customers/customer.routes.ts

@@ -0,0 +1,41 @@
+import { Routes } from '@angular/router';
+
+import { authGuard } from '../auth/auth-guard.service';
+
+import { CustomerDetailComponent } from './customer-detail/customer-detail.component';
+import { CustomerListComponent } from './customer-list/customer-list.component';
+import { customerListResolver } from './customer-list.resolver';
+import { customerResolver } from './customer.resolver';
+
+export const routes: Routes = [
+  {
+    path: '',
+    component: CustomerListComponent,
+    canActivate: [authGuard],
+    data: {
+      permission: 'Customers',
+    },
+    resolve: {
+      list: customerListResolver,
+    },
+  },
+  {
+    path: 'new',
+    component: CustomerDetailComponent,
+    canActivate: [authGuard],
+    data: {
+      permission: 'Customers',
+    },
+    resolve: {
+      item: customerResolver,
+    },
+  },
+  {
+    path: ':id',
+    component: CustomerDetailComponent,
+    canActivate: [authGuard],
+    resolve: {
+      item: customerResolver,
+    },
+  },
+];