v1.6.5: fix attendance unique constraint, schema sync, seed script

- Change attendance idx_attendance_user_date from unique to index (allow multiple shifts per day)
- Reset migrations to single baseline init migration
- Add seed script with admin user (admin/admin)
- Update CLAUDE.md with migration workflow documentation
- Various frontend fixes (queries, pages, hooks)

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

src/admin/lib/queries/invoices.ts

@@ -31,6 +31,89 @@ export interface InvoiceStats {
   vat_month_czk: number;
 }
 
+export interface InvoiceItem {
+  id?: number;
+  description: string;
+  item_description?: string;
+  quantity: number;
+  unit: string;
+  unit_price: number;
+  is_included_in_total: boolean;
+  position?: number;
+}
+
+export interface InvoiceDetail {
+  id: number;
+  invoice_number: string;
+  customer_id: number | null;
+  customer_name: string;
+  customer?: {
+    company_id?: string;
+    vat_id?: string;
+  };
+  status: string;
+  issue_date: string;
+  due_date: string;
+  taxable_date?: string;
+  tax_date?: string;
+  currency: string;
+  language: string;
+  vat_rate: number;
+  apply_vat: boolean;
+  exchange_rate: string;
+  notes?: string;
+  payment_method?: string;
+  variable_symbol?: string;
+  constant_symbol?: string;
+  issued_by?: string | null;
+  paid_date?: string;
+  billing_text?: string;
+  bank_name?: string;
+  bank_swift?: string;
+  bank_iban?: string;
+  bank_account?: string;
+  bank_account_id?: number | null;
+  items?: InvoiceItem[];
+  subtotal: number;
+  vat_amount: number;
+  total: number;
+  order?: {
+    id: number;
+    order_number: string;
+    status?: string;
+  } | null;
+  order_id?: number;
+  order_number?: string;
+  has_pdf?: boolean;
+  valid_transitions?: string[];
+}
+
+export interface ReceivedInvoice {
+  id: number;
+  supplier_name: string;
+  invoice_number: string;
+  amount: number;
+  currency: string;
+  vat_rate: number;
+  issue_date: string;
+  due_date: string;
+  notes: string;
+  status: string;
+  file_name?: string;
+  created_at: string;
+}
+
+export interface ReceivedStats {
+  total_month: CurrencyAmount[];
+  total_month_czk: number | null;
+  vat_month: CurrencyAmount[];
+  vat_month_czk: number | null;
+  unpaid: CurrencyAmount[];
+  unpaid_czk: number | null;
+  unpaid_count: number;
+  month_count: number;
+}
+
 export const invoiceListOptions = (filters: {
   search?: string;
   sort?: string;
@@ -93,7 +176,7 @@ export const receivedInvoiceListOptions = (filters: {
       if (filters.page) params.set("page", String(filters.page));
       if (filters.perPage) params.set("per_page", String(filters.perPage));
       const qs = params.toString();
-      return paginatedJsonQuery(
+      return paginatedJsonQuery<ReceivedInvoice>(
         `/api/admin/received-invoices${qs ? `?${qs}` : ""}`,
       );
     },
@@ -112,7 +195,7 @@ export const receivedInvoiceStatsOptions = (month: number, year: number) =>
   queryOptions({
     queryKey: ["invoices", "received", "stats", month, year],
     queryFn: () =>
-      jsonQuery<Record<string, unknown>>(
+      jsonQuery<ReceivedStats>(
         `/api/admin/received-invoices/stats?month=${month}&year=${year}`,
       ),
   });
@@ -120,7 +203,6 @@ export const receivedInvoiceStatsOptions = (month: number, year: number) =>
 export const invoiceDetailOptions = (id: string | undefined) =>
   queryOptions({
     queryKey: ["invoices", id],
-    queryFn: () =>
-      jsonQuery<Record<string, unknown>>(`/api/admin/invoices/${id}`),
+    queryFn: () => jsonQuery<InvoiceDetail>(`/api/admin/invoices/${id}`),
     enabled: !!id,
   });