Initial commit: ExaMetra v1.0.0 — Free & open-source competence & grading platform

Features:
- 15+ views: Dashboard, Classes, Progress, Flower, Matrix, Assessments, Grading, Reports, Attendance, Calendar, Lesson Plans, Analytics, Parent Communication, Behavior Tracking, Settings
- 34+ API endpoints
- 30+ Prisma models
- 700+ i18n keys (German + English)
- Keyboard shortcuts (Cmd+K, Cmd+1-9, Cmd+/)
- Batch deletion, drag-and-drop seating, custom color palette
- Demo accounts (admin, teacher, student, parent)
- Dark mode, responsive design, print styles
- CSV/PDF export, notification system, onboarding tour
- Zero emojis — all replaced with Lucide icons
- MIT License

src/lib/store.ts

@@ -0,0 +1,157 @@
+// CompetenceTrack — Zustand Store
+import { create } from 'zustand';
+import { setLocale, getLocale } from '@/lib/i18n';
+
+export type ViewName =
+  | 'dashboard'
+  | 'classes'
+  | 'competencies'
+  | 'progress'
+  | 'flower'
+  | 'assessments'
+  | 'grading'
+  | 'reports'
+  | 'settings'
+  | 'student-detail'
+  | 'analytics'
+  | 'matrix'
+  | 'attendance'
+  | 'calendar'
+  | 'lesson-plans'
+  | 'parents'
+  | 'behavior'
+  | 'coverage'
+  | 'rubrics'
+  | 'comments';
+
+export interface CurrentUser {
+  id: string;
+  email: string;
+  firstName: string;
+  lastName: string;
+  role: string;
+  schoolId: string | null;
+  locale: string;
+  isDemo?: boolean;
+}
+
+export interface NotificationPrefs {
+  showProgress: boolean;
+  showAssessments: boolean;
+  showGrades: boolean;
+  showReports: boolean;
+}
+
+interface AppState {
+  // Navigation
+  currentView: ViewName;
+  previousView: ViewName | null;
+  setCurrentView: (view: ViewName) => void;
+  navigateToStudentDetail: (studentId: string, fromView?: ViewName) => void;
+  navigateBack: () => void;
+
+  // Auth
+  currentUser: CurrentUser | null;
+  isLoadingAuth: boolean;
+  setCurrentUser: (user: CurrentUser | null) => void;
+  logout: () => Promise<void>;
+
+  // Selection
+  currentClassId: string | null;
+  currentStudentId: string | null;
+  currentSubjectId: string | null;
+  schoolYearId: string | null;
+  setCurrentClass: (id: string | null) => void;
+  setCurrentStudent: (id: string | null) => void;
+  setCurrentSubject: (id: string | null) => void;
+  setSchoolYearId: (id: string | null) => void;
+
+  // UI
+  sidebarCollapsed: boolean;
+  setSidebarCollapsed: (collapsed: boolean) => void;
+  toggleSidebar: () => void;
+
+  // Locale
+  locale: string;
+  setLocale: (locale: string) => void;
+
+  // Notifications
+  notificationPrefs: NotificationPrefs;
+  setNotificationPrefs: (prefs: NotificationPrefs) => void;
+}
+
+function loadNotificationPrefs(): NotificationPrefs {
+  try {
+    const stored = localStorage.getItem('ct_notification_prefs');
+    if (stored) return JSON.parse(stored);
+  } catch {
+    // ignore
+  }
+  return { showProgress: true, showAssessments: true, showGrades: true, showReports: true };
+}
+
+export const useAppStore = create<AppState>((set, get) => ({
+  // Navigation
+  currentView: 'dashboard',
+  previousView: null,
+  setCurrentView: (view) => set({ currentView: view }),
+  navigateToStudentDetail: (studentId, fromView) => set((s) => ({
+    currentStudentId: studentId,
+    previousView: fromView ?? s.currentView,
+    currentView: 'student-detail' as ViewName,
+  })),
+  navigateBack: () => set((s) => ({
+    currentView: s.previousView ?? 'classes',
+    previousView: null,
+  })),
+
+  // Auth
+  currentUser: null,
+  isLoadingAuth: true,
+  setCurrentUser: (user) => set({ currentUser: user, isLoadingAuth: false }),
+  logout: async () => {
+    try {
+      await fetch('/api/auth', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ action: 'logout' }),
+      });
+    } catch {
+      // ignore
+    }
+    set({ currentUser: null, currentView: 'dashboard' });
+  },
+
+  // Selection
+  currentClassId: null,
+  currentStudentId: null,
+  currentSubjectId: null,
+  schoolYearId: null,
+  setCurrentClass: (id) => set({ currentClassId: id, currentStudentId: null }),
+  setCurrentStudent: (id) => set({ currentStudentId: id }),
+  setCurrentSubject: (id) => set({ currentSubjectId: id }),
+  setSchoolYearId: (id) => set({ schoolYearId: id }),
+
+  // UI
+  sidebarCollapsed: false,
+  setSidebarCollapsed: (collapsed) => set({ sidebarCollapsed: collapsed }),
+  toggleSidebar: () => set((s) => ({ sidebarCollapsed: !s.sidebarCollapsed })),
+
+  // Locale
+  locale: getLocale(),
+  setLocale: (locale) => {
+    setLocale(locale);
+    set({ locale });
+  },
+
+  // Notifications
+  notificationPrefs: loadNotificationPrefs(),
+  setNotificationPrefs: (prefs) => {
+    try {
+      localStorage.setItem('ct_notification_prefs', JSON.stringify(prefs));
+    } catch {
+      // ignore
+    }
+    set({ notificationPrefs: prefs });
+  },
+}));