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/hooks/useApiCall.ts

@@ -1,49 +0,0 @@
-import { useCallback, useRef } from "react";
-import { useAlert } from "../context/AlertContext";
-import apiFetch from "../utils/api";
-
-interface ApiCallResult<T> {
-  data: T | null;
-  ok: boolean;
-  response: Response | null;
-}
-
-export default function useApiCall() {
-  const alert = useAlert();
-  const abortRef = useRef<AbortController | null>(null);
-
-  const call = useCallback(
-    async <T = unknown>(
-      url: string,
-      options: RequestInit = {},
-      errorMsg = "Chyba při načítání dat",
-    ): Promise<ApiCallResult<T>> => {
-      if (abortRef.current) abortRef.current.abort();
-      const controller = new AbortController();
-      abortRef.current = controller;
-
-      try {
-        const { signal: _, ...restOptions } = options;
-        const response = await apiFetch(url, {
-          ...restOptions,
-          signal: controller.signal,
-        });
-        const data = await response.json();
-        if (!response.ok || !data.success) {
-          alert.error(data.error || errorMsg);
-          return { data: null, ok: false, response };
-        }
-        return { data: data.data as T, ok: true, response };
-      } catch (err: unknown) {
-        if (err instanceof Error && err.name === "AbortError") {
-          return { data: null, ok: false, response: null };
-        }
-        alert.error(errorMsg);
-        return { data: null, ok: false, response: null };
-      }
-    },
-    [alert],
-  );
-
-  return { call };
-}

src/admin/hooks/useAttendanceAdmin.ts

@@ -1,4 +1,5 @@
 import { useState, useEffect, useCallback, useRef } from "react";
+import { useQueryClient } from "@tanstack/react-query";
 import apiFetch from "../utils/api";
 import {
   calcProjectMinutesTotal,
@@ -461,6 +462,7 @@ function buildPrintHtml(
 // ---------------------------------------------------------------------------
 
 export default function useAttendanceAdmin({ alert }: AlertContext) {
+  const queryClient = useQueryClient();
   // ---- Core state ----
   const [loading, setLoading] = useState(true);
   const [month, setMonth] = useState(() => {
@@ -771,6 +773,7 @@ export default function useAttendanceAdmin({ alert }: AlertContext) {
 
       if (result.success) {
         setShowCreateModal(false);
+        queryClient.invalidateQueries({ queryKey: ["attendance"] });
         await fetchData(false);
         await new Promise((resolve) => setTimeout(resolve, 300));
         alert.success(
@@ -842,6 +845,7 @@ export default function useAttendanceAdmin({ alert }: AlertContext) {
 
       if (result.success) {
         setShowBulkModal(false);
+        queryClient.invalidateQueries({ queryKey: ["attendance"] });
         await fetchData(false);
         await new Promise((resolve) => setTimeout(resolve, 300));
         alert.success(
@@ -976,6 +980,7 @@ export default function useAttendanceAdmin({ alert }: AlertContext) {
 
       if (result.success) {
         setShowEditModal(false);
+        queryClient.invalidateQueries({ queryKey: ["attendance"] });
         await fetchData(false);
         await new Promise((resolve) => setTimeout(resolve, 300));
         alert.success(
@@ -1005,6 +1010,7 @@ export default function useAttendanceAdmin({ alert }: AlertContext) {
 
       if (result.success) {
         setDeleteConfirm({ show: false, record: null });
+        queryClient.invalidateQueries({ queryKey: ["attendance"] });
         await fetchData(false);
         alert.success(
           result.message || result.data?.message || "Záznam smazán",

src/admin/hooks/useListData.ts

@@ -1,139 +0,0 @@
-import { useState, useEffect, useCallback, useRef } from "react";
-import { useAlert } from "../context/AlertContext";
-import apiFetch from "../utils/api";
-import useDebounce from "./useDebounce";
-
-const API_BASE = "/api/admin";
-
-interface PaginationData {
-  total: number;
-  page: number;
-  per_page: number;
-  total_pages: number;
-}
-
-interface UseListDataOptions {
-  dataKey?: string;
-  search?: string;
-  sort?: string;
-  order?: string;
-  page?: number;
-  perPage?: number;
-  extraParams?: Record<string, string>;
-  errorMsg?: string;
-}
-
-export default function useListData<T = unknown>(
-  endpoint: string,
-  options: UseListDataOptions = {},
-) {
-  const {
-    dataKey,
-    search = "",
-    sort,
-    order,
-    page = 1,
-    perPage = 25,
-    extraParams = {},
-    errorMsg = "Nepodařilo se načíst data",
-  } = options;
-  const alert = useAlert();
-  const [items, setItems] = useState<T[]>([]);
-  const [loading, setLoading] = useState(true);
-  const [initialLoad, setInitialLoad] = useState(true);
-  const [pagination, setPagination] = useState<PaginationData | null>(null);
-  const abortRef = useRef<AbortController | null>(null);
-  const mountedRef = useRef(true);
-  const debouncedSearch = useDebounce(search, 300);
-
-  const extraParamsKey = Object.entries(extraParams)
-    .sort((a, b) => a[0].localeCompare(b[0]))
-    .map(([k, v]) => `${k}=${v}`)
-    .join("&");
-
-  const fetchData = useCallback(async () => {
-    if (abortRef.current) abortRef.current.abort();
-    const controller = new AbortController();
-    abortRef.current = controller;
-
-    try {
-      const params = new URLSearchParams({
-        page: String(page),
-        per_page: String(perPage),
-      });
-      if (debouncedSearch) params.set("search", debouncedSearch);
-      if (sort) params.set("sort", sort);
-      if (order) params.set("order", order);
-      Object.entries(extraParams).forEach(([k, v]) => {
-        if (v) params.set(k, v);
-      });
-
-      const url = endpoint.startsWith("/")
-        ? `${endpoint}?${params}`
-        : `${API_BASE}/${endpoint}?${params}`;
-      const response = await apiFetch(url, { signal: controller.signal });
-      if (response.status === 401) {
-        window.location.href = "/login";
-        return;
-      }
-      const result = await response.json();
-      if (result.success) {
-        const data = dataKey
-          ? result.data[dataKey]
-          : Array.isArray(result.data)
-            ? result.data
-            : result.data?.items || [];
-        setItems(data || []);
-        const pag =
-          result.pagination ||
-          (!Array.isArray(result.data) && result.data?.pagination) ||
-          null;
-        setPagination(
-          pag || {
-            total: data?.length ?? 0,
-            page,
-            per_page: perPage,
-            total_pages: 1,
-          },
-        );
-      } else {
-        alert.error(result.error || errorMsg);
-      }
-    } catch (err: unknown) {
-      if (err instanceof Error && err.name === "AbortError") return;
-      if (!mountedRef.current) return;
-      alert.error(errorMsg);
-    } finally {
-      if (!mountedRef.current) return;
-      setLoading(false);
-      setInitialLoad(false);
-    }
-  }, [
-    endpoint,
-    debouncedSearch,
-    sort,
-    order,
-    page,
-    perPage,
-    dataKey,
-    extraParamsKey,
-  ]);
-
-  useEffect(() => {
-    mountedRef.current = true;
-    fetchData();
-    return () => {
-      mountedRef.current = false;
-      if (abortRef.current) abortRef.current.abort();
-    };
-  }, [fetchData]);
-
-  return {
-    items,
-    setItems,
-    loading,
-    initialLoad,
-    pagination,
-    refetch: fetchData,
-  };
-}