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/components/ui/toaster.tsx

@@ -0,0 +1,35 @@
+"use client"
+
+import { useToast } from "@/hooks/use-toast"
+import {
+  Toast,
+  ToastClose,
+  ToastDescription,
+  ToastProvider,
+  ToastTitle,
+  ToastViewport,
+} from "@/components/ui/toast"
+
+export function Toaster() {
+  const { toasts } = useToast()
+
+  return (
+    <ToastProvider>
+      {toasts.map(function ({ id, title, description, action, ...props }) {
+        return (
+          <Toast key={id} {...props}>
+            <div className="grid gap-1">
+              {title && <ToastTitle>{title}</ToastTitle>}
+              {description && (
+                <ToastDescription>{description}</ToastDescription>
+              )}
+            </div>
+            {action}
+            <ToastClose />
+          </Toast>
+        )
+      })}
+      <ToastViewport />
+    </ToastProvider>
+  )
+}