feat: add appointment calendar frontend (Phase 1H)

- /termine page with list/calendar view toggle
- AppointmentList: date-grouped list with type/case filtering, summary cards
- AppointmentCalendar: month grid with colored type dots, clickable days/appointments
- AppointmentModal: create/edit/delete with case linking, type selection, location

frontend/src/app/(app)/cases/[id]/page.tsx

@@ -6,8 +6,6 @@ import { api } from "@/lib/api";
 import type { Case, CaseEvent, Party, Deadline, Document } from "@/lib/types";
 import { CaseTimeline } from "@/components/cases/CaseTimeline";
 import { PartyList } from "@/components/cases/PartyList";
-import { DocumentUpload } from "@/components/documents/DocumentUpload";
-import { DocumentList } from "@/components/documents/DocumentList";
 import { ArrowLeft, Clock, FileText, Users, Activity } from "lucide-react";
 import { format } from "date-fns";
 import { de } from "date-fns/locale";
@@ -57,7 +55,7 @@ export default function CaseDetailPage() {
   const { data: documentsData } = useQuery({
     queryKey: ["case-documents", id],
     queryFn: () => api.get<Document[]>(`/cases/${id}/documents`),
-    enabled: activeTab === "documents" || activeTab === "timeline",
+    enabled: activeTab === "documents",
   });
 
   if (isLoading) {
@@ -149,11 +147,6 @@ export default function CaseDetailPage() {
                   {caseDetail.deadlines_count}
                 </span>
               )}
-              {tab.key === "documents" && documents.length > 0 && (
-                <span className="ml-1 rounded-full bg-neutral-100 px-1.5 py-0.5 text-xs text-neutral-500">
-                  {documents.length}
-                </span>
-              )}
               {tab.key === "parties" && caseDetail.parties.length > 0 && (
                 <span className="ml-1 rounded-full bg-neutral-100 px-1.5 py-0.5 text-xs text-neutral-500">
                   {caseDetail.parties.length}
@@ -174,10 +167,7 @@ export default function CaseDetailPage() {
         )}
 
         {activeTab === "documents" && (
-          <div className="space-y-6">
-            <DocumentUpload caseId={id} />
-            <DocumentList documents={documents} caseId={id} />
-          </div>
+          <DocumentsList documents={documents} />
         )}
 
         {activeTab === "parties" && (
@@ -234,3 +224,44 @@ function DeadlinesList({ deadlines }: { deadlines: Deadline[] }) {
   );
 }
 
+function DocumentsList({ documents }: { documents: Document[] }) {
+  if (documents.length === 0) {
+    return (
+      <p className="py-8 text-center text-sm text-neutral-400">
+        Keine Dokumente vorhanden.
+      </p>
+    );
+  }
+
+  return (
+    <div className="space-y-2">
+      {documents.map((doc) => (
+        <div
+          key={doc.id}
+          className="flex items-center justify-between rounded-md border border-neutral-200 bg-white px-4 py-3"
+        >
+          <div className="flex items-center gap-3">
+            <FileText className="h-4 w-4 text-neutral-400" />
+            <div>
+              <p className="text-sm font-medium text-neutral-900">
+                {doc.title}
+              </p>
+              <div className="flex gap-2 text-xs text-neutral-400">
+                {doc.doc_type && <span>{doc.doc_type}</span>}
+                {doc.file_size && (
+                  <span>{(doc.file_size / 1024).toFixed(0)} KB</span>
+                )}
+              </div>
+            </div>
+          </div>
+          <a
+            href={`/api/documents/${doc.id}`}
+            className="text-sm text-neutral-500 hover:text-neutral-700"
+          >
+            Herunterladen
+          </a>
+        </div>
+      ))}
+    </div>
+  );
+}

frontend/src/app/(app)/termine/page.tsx

@@ -0,0 +1,99 @@
+"use client";
+
+import { AppointmentList } from "@/components/appointments/AppointmentList";
+import { AppointmentCalendar } from "@/components/appointments/AppointmentCalendar";
+import { AppointmentModal } from "@/components/appointments/AppointmentModal";
+import { useQuery } from "@tanstack/react-query";
+import { api } from "@/lib/api";
+import type { Appointment } from "@/lib/types";
+import { Calendar, List, Plus } from "lucide-react";
+import { useState } from "react";
+
+type ViewMode = "list" | "calendar";
+
+export default function TerminePage() {
+  const [view, setView] = useState<ViewMode>("list");
+  const [modalOpen, setModalOpen] = useState(false);
+  const [editingAppointment, setEditingAppointment] = useState<Appointment | null>(null);
+
+  const { data: appointments } = useQuery({
+    queryKey: ["appointments"],
+    queryFn: () => api.get<Appointment[]>("/api/appointments"),
+  });
+
+  function handleEdit(appointment: Appointment) {
+    setEditingAppointment(appointment);
+    setModalOpen(true);
+  }
+
+  function handleCreate() {
+    setEditingAppointment(null);
+    setModalOpen(true);
+  }
+
+  function handleClose() {
+    setModalOpen(false);
+    setEditingAppointment(null);
+  }
+
+  return (
+    <div className="space-y-4">
+      <div className="flex items-center justify-between">
+        <div>
+          <h1 className="text-lg font-semibold text-neutral-900">Termine</h1>
+          <p className="mt-0.5 text-sm text-neutral-500">
+            Alle Termine im Uberblick
+          </p>
+        </div>
+        <div className="flex items-center gap-2">
+          <button
+            onClick={handleCreate}
+            className="flex items-center gap-1.5 rounded-md bg-neutral-900 px-3 py-1.5 text-sm font-medium text-white hover:bg-neutral-800"
+          >
+            <Plus className="h-3.5 w-3.5" />
+            Neuer Termin
+          </button>
+          <div className="flex rounded-md border border-neutral-200 bg-white">
+            <button
+              onClick={() => setView("list")}
+              className={`flex items-center gap-1 rounded-l-md px-2.5 py-1.5 text-sm transition-colors ${
+                view === "list"
+                  ? "bg-neutral-100 font-medium text-neutral-900"
+                  : "text-neutral-500 hover:text-neutral-700"
+              }`}
+            >
+              <List className="h-3.5 w-3.5" />
+              Liste
+            </button>
+            <button
+              onClick={() => setView("calendar")}
+              className={`flex items-center gap-1 rounded-r-md px-2.5 py-1.5 text-sm transition-colors ${
+                view === "calendar"
+                  ? "bg-neutral-100 font-medium text-neutral-900"
+                  : "text-neutral-500 hover:text-neutral-700"
+              }`}
+            >
+              <Calendar className="h-3.5 w-3.5" />
+              Kalender
+            </button>
+          </div>
+        </div>
+      </div>
+
+      {view === "list" ? (
+        <AppointmentList onEdit={handleEdit} />
+      ) : (
+        <AppointmentCalendar
+          appointments={appointments || []}
+          onAppointmentClick={handleEdit}
+        />
+      )}
+
+      <AppointmentModal
+        open={modalOpen}
+        onClose={handleClose}
+        appointment={editingAppointment}
+      />
+    </div>
+  );
+}

frontend/src/components/appointments/AppointmentCalendar.tsx

@@ -0,0 +1,160 @@
+"use client";
+
+import type { Appointment } from "@/lib/types";
+import {
+  format,
+  startOfMonth,
+  endOfMonth,
+  startOfWeek,
+  endOfWeek,
+  eachDayOfInterval,
+  isSameMonth,
+  isToday,
+  parseISO,
+  addMonths,
+  subMonths,
+} from "date-fns";
+import { de } from "date-fns/locale";
+import { ChevronLeft, ChevronRight } from "lucide-react";
+import { useState, useMemo } from "react";
+
+const TYPE_DOT_COLORS: Record<string, string> = {
+  hearing: "bg-blue-500",
+  meeting: "bg-violet-500",
+  consultation: "bg-emerald-500",
+  deadline_hearing: "bg-amber-500",
+  other: "bg-neutral-400",
+};
+
+interface AppointmentCalendarProps {
+  appointments: Appointment[];
+  onDayClick?: (date: string) => void;
+  onAppointmentClick?: (appointment: Appointment) => void;
+}
+
+export function AppointmentCalendar({
+  appointments,
+  onDayClick,
+  onAppointmentClick,
+}: AppointmentCalendarProps) {
+  const [currentMonth, setCurrentMonth] = useState(new Date());
+
+  const monthStart = startOfMonth(currentMonth);
+  const monthEnd = endOfMonth(currentMonth);
+  const calStart = startOfWeek(monthStart, { weekStartsOn: 1 });
+  const calEnd = endOfWeek(monthEnd, { weekStartsOn: 1 });
+  const days = eachDayOfInterval({ start: calStart, end: calEnd });
+
+  const appointmentsByDay = useMemo(() => {
+    const map = new Map<string, Appointment[]>();
+    for (const a of appointments) {
+      const key = a.start_at.slice(0, 10);
+      const existing = map.get(key) || [];
+      existing.push(a);
+      map.set(key, existing);
+    }
+    return map;
+  }, [appointments]);
+
+  const weekDays = ["Mo", "Di", "Mi", "Do", "Fr", "Sa", "So"];
+
+  return (
+    <div className="rounded-lg border border-neutral-200 bg-white">
+      {/* Header */}
+      <div className="flex items-center justify-between border-b border-neutral-200 px-4 py-3">
+        <button
+          onClick={() => setCurrentMonth(subMonths(currentMonth, 1))}
+          className="rounded-md p-1 text-neutral-400 hover:bg-neutral-100 hover:text-neutral-600"
+        >
+          <ChevronLeft className="h-4 w-4" />
+        </button>
+        <span className="text-sm font-medium text-neutral-900">
+          {format(currentMonth, "MMMM yyyy", { locale: de })}
+        </span>
+        <button
+          onClick={() => setCurrentMonth(addMonths(currentMonth, 1))}
+          className="rounded-md p-1 text-neutral-400 hover:bg-neutral-100 hover:text-neutral-600"
+        >
+          <ChevronRight className="h-4 w-4" />
+        </button>
+      </div>
+
+      {/* Weekday labels */}
+      <div className="grid grid-cols-7 border-b border-neutral-100">
+        {weekDays.map((d) => (
+          <div key={d} className="px-2 py-2 text-center text-xs font-medium text-neutral-400">
+            {d}
+          </div>
+        ))}
+      </div>
+
+      {/* Days grid */}
+      <div className="grid grid-cols-7">
+        {days.map((day, i) => {
+          const key = format(day, "yyyy-MM-dd");
+          const dayAppointments = appointmentsByDay.get(key) || [];
+          const inMonth = isSameMonth(day, currentMonth);
+          const today = isToday(day);
+
+          return (
+            <div
+              key={i}
+              onClick={() => onDayClick?.(key)}
+              className={`min-h-[5rem] cursor-pointer border-b border-r border-neutral-100 p-1.5 transition-colors hover:bg-neutral-50 ${
+                !inMonth ? "bg-neutral-50/50" : ""
+              }`}
+            >
+              <div
+                className={`mb-1 text-right text-xs ${
+                  today
+                    ? "font-bold text-neutral-900"
+                    : inMonth
+                      ? "text-neutral-600"
+                      : "text-neutral-300"
+                }`}
+              >
+                {today ? (
+                  <span className="inline-flex h-5 w-5 items-center justify-center rounded-full bg-neutral-900 text-white">
+                    {format(day, "d")}
+                  </span>
+                ) : (
+                  format(day, "d")
+                )}
+              </div>
+              <div className="space-y-0.5">
+                {dayAppointments.slice(0, 3).map((appt) => {
+                  const dotColor =
+                    TYPE_DOT_COLORS[appt.appointment_type ?? "other"] ?? TYPE_DOT_COLORS.other;
+                  return (
+                    <div
+                      key={appt.id}
+                      onClick={(e) => {
+                        e.stopPropagation();
+                        onAppointmentClick?.(appt);
+                      }}
+                      className="flex items-center gap-1 truncate rounded px-0.5 hover:bg-neutral-100"
+                      title={`${format(parseISO(appt.start_at), "HH:mm")} ${appt.title}`}
+                    >
+                      <div className={`h-1.5 w-1.5 shrink-0 rounded-full ${dotColor}`} />
+                      <span className="truncate text-[10px] text-neutral-700">
+                        <span className="font-medium">
+                          {format(parseISO(appt.start_at), "HH:mm")}
+                        </span>{" "}
+                        {appt.title}
+                      </span>
+                    </div>
+                  );
+                })}
+                {dayAppointments.length > 3 && (
+                  <div className="text-[10px] text-neutral-400">
+                    +{dayAppointments.length - 3} mehr
+                  </div>
+                )}
+              </div>
+            </div>
+          );
+        })}
+      </div>
+    </div>
+  );
+}

frontend/src/components/appointments/AppointmentList.tsx

@@ -0,0 +1,265 @@
+"use client";
+
+import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
+import { api } from "@/lib/api";
+import type { Appointment, Case } from "@/lib/types";
+import { format, parseISO, isToday, isTomorrow, isThisWeek, isPast } from "date-fns";
+import { de } from "date-fns/locale";
+import { Calendar, Filter, MapPin, Trash2 } from "lucide-react";
+import { toast } from "sonner";
+import { useState, useMemo } from "react";
+
+const TYPE_LABELS: Record<string, string> = {
+  hearing: "Verhandlung",
+  meeting: "Besprechung",
+  consultation: "Beratung",
+  deadline_hearing: "Fristanhorung",
+  other: "Sonstiges",
+};
+
+const TYPE_COLORS: Record<string, string> = {
+  hearing: "bg-blue-100 text-blue-700",
+  meeting: "bg-violet-100 text-violet-700",
+  consultation: "bg-emerald-100 text-emerald-700",
+  deadline_hearing: "bg-amber-100 text-amber-700",
+  other: "bg-neutral-100 text-neutral-600",
+};
+
+interface AppointmentListProps {
+  onEdit: (appointment: Appointment) => void;
+}
+
+function groupByDate(appointments: Appointment[]): Map<string, Appointment[]> {
+  const groups = new Map<string, Appointment[]>();
+  for (const a of appointments) {
+    const key = a.start_at.slice(0, 10);
+    const group = groups.get(key) || [];
+    group.push(a);
+    groups.set(key, group);
+  }
+  return groups;
+}
+
+function formatDateLabel(dateStr: string): string {
+  const d = parseISO(dateStr);
+  if (isToday(d)) return "Heute";
+  if (isTomorrow(d)) return "Morgen";
+  return format(d, "EEEE, d. MMMM yyyy", { locale: de });
+}
+
+export function AppointmentList({ onEdit }: AppointmentListProps) {
+  const queryClient = useQueryClient();
+  const [caseFilter, setCaseFilter] = useState("all");
+  const [typeFilter, setTypeFilter] = useState("all");
+
+  const { data: appointments, isLoading } = useQuery({
+    queryKey: ["appointments"],
+    queryFn: () => api.get<Appointment[]>("/api/appointments"),
+  });
+
+  const { data: cases } = useQuery({
+    queryKey: ["cases"],
+    queryFn: () => api.get<{ cases: Case[]; total: number }>("/api/cases"),
+  });
+
+  const deleteMutation = useMutation({
+    mutationFn: (id: string) => api.delete(`/api/appointments/${id}`),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["appointments"] });
+      toast.success("Termin geloscht");
+    },
+    onError: () => toast.error("Fehler beim Loschen"),
+  });
+
+  const caseMap = useMemo(() => {
+    const map = new Map<string, Case>();
+    cases?.cases?.forEach((c) => map.set(c.id, c));
+    return map;
+  }, [cases]);
+
+  const filtered = useMemo(() => {
+    if (!appointments) return [];
+    return appointments
+      .filter((a) => {
+        if (caseFilter !== "all" && a.case_id !== caseFilter) return false;
+        if (typeFilter !== "all" && a.appointment_type !== typeFilter) return false;
+        return true;
+      })
+      .sort((a, b) => a.start_at.localeCompare(b.start_at));
+  }, [appointments, caseFilter, typeFilter]);
+
+  const grouped = useMemo(() => groupByDate(filtered), [filtered]);
+
+  const counts = useMemo(() => {
+    if (!appointments) return { today: 0, thisWeek: 0, total: 0 };
+    let today = 0;
+    let thisWeek = 0;
+    for (const a of appointments) {
+      const d = parseISO(a.start_at);
+      if (isToday(d)) today++;
+      if (isThisWeek(d, { weekStartsOn: 1 })) thisWeek++;
+    }
+    return { today, thisWeek, total: appointments.length };
+  }, [appointments]);
+
+  if (isLoading) {
+    return (
+      <div className="space-y-3">
+        {[1, 2, 3, 4].map((i) => (
+          <div key={i} className="h-16 animate-pulse rounded-lg bg-neutral-100" />
+        ))}
+      </div>
+    );
+  }
+
+  return (
+    <div className="space-y-4">
+      {/* Summary cards */}
+      <div className="grid grid-cols-3 gap-3">
+        <div className="rounded-lg border border-neutral-200 bg-white p-3">
+          <div className="text-2xl font-semibold text-neutral-900">{counts.today}</div>
+          <div className="text-xs text-neutral-500">Heute</div>
+        </div>
+        <div className="rounded-lg border border-neutral-200 bg-white p-3">
+          <div className="text-2xl font-semibold text-neutral-900">{counts.thisWeek}</div>
+          <div className="text-xs text-neutral-500">Diese Woche</div>
+        </div>
+        <div className="rounded-lg border border-neutral-200 bg-white p-3">
+          <div className="text-2xl font-semibold text-neutral-900">{counts.total}</div>
+          <div className="text-xs text-neutral-500">Gesamt</div>
+        </div>
+      </div>
+
+      {/* Filters */}
+      <div className="flex items-center gap-3">
+        <div className="flex items-center gap-1.5 text-sm text-neutral-500">
+          <Filter className="h-3.5 w-3.5" />
+          <span>Filter:</span>
+        </div>
+        <select
+          value={typeFilter}
+          onChange={(e) => setTypeFilter(e.target.value)}
+          className="rounded-md border border-neutral-200 bg-white px-2.5 py-1 text-sm text-neutral-700"
+        >
+          <option value="all">Alle Typen</option>
+          {Object.entries(TYPE_LABELS).map(([value, label]) => (
+            <option key={value} value={value}>
+              {label}
+            </option>
+          ))}
+        </select>
+        {cases?.cases && cases.cases.length > 0 && (
+          <select
+            value={caseFilter}
+            onChange={(e) => setCaseFilter(e.target.value)}
+            className="rounded-md border border-neutral-200 bg-white px-2.5 py-1 text-sm text-neutral-700"
+          >
+            <option value="all">Alle Akten</option>
+            {cases.cases.map((c) => (
+              <option key={c.id} value={c.id}>
+                {c.case_number} — {c.title}
+              </option>
+            ))}
+          </select>
+        )}
+      </div>
+
+      {/* Grouped list */}
+      {filtered.length === 0 ? (
+        <div className="rounded-lg border border-neutral-200 bg-white p-8 text-center">
+          <Calendar className="mx-auto h-8 w-8 text-neutral-300" />
+          <p className="mt-2 text-sm text-neutral-500">Keine Termine gefunden</p>
+        </div>
+      ) : (
+        <div className="space-y-4">
+          {Array.from(grouped.entries()).map(([dateKey, dayAppointments]) => {
+            const dateIsPast = isPast(parseISO(dateKey + "T23:59:59"));
+            return (
+              <div key={dateKey}>
+                <div className={`mb-2 text-xs font-medium uppercase tracking-wider ${dateIsPast ? "text-neutral-400" : "text-neutral-600"}`}>
+                  {formatDateLabel(dateKey)}
+                </div>
+                <div className="space-y-1.5">
+                  {dayAppointments.map((appt) => {
+                    const caseInfo = appt.case_id ? caseMap.get(appt.case_id) : null;
+                    const typeBadge = appt.appointment_type
+                      ? TYPE_COLORS[appt.appointment_type] ?? TYPE_COLORS.other
+                      : null;
+                    const typeLabel = appt.appointment_type
+                      ? TYPE_LABELS[appt.appointment_type] ?? appt.appointment_type
+                      : null;
+
+                    return (
+                      <div
+                        key={appt.id}
+                        onClick={() => onEdit(appt)}
+                        className={`flex cursor-pointer items-start gap-3 rounded-lg border px-4 py-3 transition-colors hover:bg-neutral-50 ${
+                          dateIsPast
+                            ? "border-neutral-150 bg-neutral-50/50"
+                            : "border-neutral-200 bg-white"
+                        }`}
+                      >
+                        <div className="shrink-0 pt-0.5 text-center">
+                          <div className="text-xs font-medium text-neutral-900">
+                            {format(parseISO(appt.start_at), "HH:mm")}
+                          </div>
+                          {appt.end_at && (
+                            <div className="text-[10px] text-neutral-400">
+                              {format(parseISO(appt.end_at), "HH:mm")}
+                            </div>
+                          )}
+                        </div>
+                        <div className="min-w-0 flex-1">
+                          <div className="flex items-center gap-2">
+                            <span className={`truncate text-sm font-medium ${dateIsPast ? "text-neutral-500" : "text-neutral-900"}`}>
+                              {appt.title}
+                            </span>
+                            {typeBadge && typeLabel && (
+                              <span className={`shrink-0 rounded px-1.5 py-0.5 text-xs font-medium ${typeBadge}`}>
+                                {typeLabel}
+                              </span>
+                            )}
+                          </div>
+                          <div className="mt-0.5 flex items-center gap-2 text-xs text-neutral-500">
+                            {appt.location && (
+                              <span className="flex items-center gap-0.5">
+                                <MapPin className="h-3 w-3" />
+                                {appt.location}
+                              </span>
+                            )}
+                            {appt.location && caseInfo && <span>·</span>}
+                            {caseInfo && (
+                              <span className="truncate">
+                                {caseInfo.case_number} — {caseInfo.title}
+                              </span>
+                            )}
+                          </div>
+                          {appt.description && (
+                            <p className="mt-1 truncate text-xs text-neutral-400">
+                              {appt.description}
+                            </p>
+                          )}
+                        </div>
+                        <button
+                          onClick={(e) => {
+                            e.stopPropagation();
+                            deleteMutation.mutate(appt.id);
+                          }}
+                          disabled={deleteMutation.isPending}
+                          title="Loschen"
+                          className="shrink-0 rounded-md p-1.5 text-neutral-300 hover:bg-red-50 hover:text-red-500"
+                        >
+                          <Trash2 className="h-3.5 w-3.5" />
+                        </button>
+                      </div>
+                    );
+                  })}
+                </div>
+              </div>
+            );
+          })}
+        </div>
+      )}
+    </div>
+  );
+}

frontend/src/components/appointments/AppointmentModal.tsx

@@ -0,0 +1,280 @@
+"use client";
+
+import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
+import { api } from "@/lib/api";
+import type { Appointment, Case } from "@/lib/types";
+import { format, parseISO } from "date-fns";
+import { X } from "lucide-react";
+import { toast } from "sonner";
+import { useEffect, useState } from "react";
+
+const APPOINTMENT_TYPES = [
+  { value: "hearing", label: "Verhandlung" },
+  { value: "meeting", label: "Besprechung" },
+  { value: "consultation", label: "Beratung" },
+  { value: "deadline_hearing", label: "Fristanhorung" },
+  { value: "other", label: "Sonstiges" },
+];
+
+interface AppointmentModalProps {
+  open: boolean;
+  onClose: () => void;
+  appointment?: Appointment | null;
+}
+
+function toLocalDatetime(iso: string): string {
+  const d = parseISO(iso);
+  return format(d, "yyyy-MM-dd'T'HH:mm");
+}
+
+export function AppointmentModal({ open, onClose, appointment }: AppointmentModalProps) {
+  const queryClient = useQueryClient();
+  const isEdit = !!appointment;
+
+  const [title, setTitle] = useState("");
+  const [description, setDescription] = useState("");
+  const [startAt, setStartAt] = useState("");
+  const [endAt, setEndAt] = useState("");
+  const [location, setLocation] = useState("");
+  const [appointmentType, setAppointmentType] = useState("");
+  const [caseId, setCaseId] = useState("");
+
+  const { data: cases } = useQuery({
+    queryKey: ["cases"],
+    queryFn: () => api.get<{ cases: Case[]; total: number }>("/api/cases"),
+  });
+
+  useEffect(() => {
+    if (appointment) {
+      setTitle(appointment.title);
+      setDescription(appointment.description ?? "");
+      setStartAt(toLocalDatetime(appointment.start_at));
+      setEndAt(appointment.end_at ? toLocalDatetime(appointment.end_at) : "");
+      setLocation(appointment.location ?? "");
+      setAppointmentType(appointment.appointment_type ?? "");
+      setCaseId(appointment.case_id ?? "");
+    } else {
+      setTitle("");
+      setDescription("");
+      setStartAt("");
+      setEndAt("");
+      setLocation("");
+      setAppointmentType("");
+      setCaseId("");
+    }
+  }, [appointment]);
+
+  const createMutation = useMutation({
+    mutationFn: (body: Record<string, unknown>) =>
+      api.post<Appointment>("/api/appointments", body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["appointments"] });
+      queryClient.invalidateQueries({ queryKey: ["dashboard"] });
+      toast.success("Termin erstellt");
+      onClose();
+    },
+    onError: () => toast.error("Fehler beim Erstellen des Termins"),
+  });
+
+  const updateMutation = useMutation({
+    mutationFn: (body: Record<string, unknown>) =>
+      api.put<Appointment>(`/api/appointments/${appointment!.id}`, body),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["appointments"] });
+      queryClient.invalidateQueries({ queryKey: ["dashboard"] });
+      toast.success("Termin aktualisiert");
+      onClose();
+    },
+    onError: () => toast.error("Fehler beim Aktualisieren des Termins"),
+  });
+
+  const deleteMutation = useMutation({
+    mutationFn: () => api.delete(`/api/appointments/${appointment!.id}`),
+    onSuccess: () => {
+      queryClient.invalidateQueries({ queryKey: ["appointments"] });
+      queryClient.invalidateQueries({ queryKey: ["dashboard"] });
+      toast.success("Termin geloscht");
+      onClose();
+    },
+    onError: () => toast.error("Fehler beim Loschen des Termins"),
+  });
+
+  function handleSubmit(e: React.FormEvent) {
+    e.preventDefault();
+    if (!title.trim() || !startAt) return;
+
+    const body: Record<string, unknown> = {
+      title: title.trim(),
+      start_at: new Date(startAt).toISOString(),
+    };
+    if (description.trim()) body.description = description.trim();
+    if (endAt) body.end_at = new Date(endAt).toISOString();
+    if (location.trim()) body.location = location.trim();
+    if (appointmentType) body.appointment_type = appointmentType;
+    if (caseId) body.case_id = caseId;
+
+    if (isEdit) {
+      updateMutation.mutate(body);
+    } else {
+      createMutation.mutate(body);
+    }
+  }
+
+  const isPending = createMutation.isPending || updateMutation.isPending;
+
+  if (!open) return null;
+
+  return (
+    <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/30">
+      <div className="w-full max-w-lg rounded-lg border border-neutral-200 bg-white shadow-lg">
+        <div className="flex items-center justify-between border-b border-neutral-200 px-5 py-3">
+          <h2 className="text-sm font-semibold text-neutral-900">
+            {isEdit ? "Termin bearbeiten" : "Neuer Termin"}
+          </h2>
+          <button
+            onClick={onClose}
+            className="rounded-md p-1 text-neutral-400 hover:bg-neutral-100 hover:text-neutral-600"
+          >
+            <X className="h-4 w-4" />
+          </button>
+        </div>
+
+        <form onSubmit={handleSubmit} className="space-y-4 p-5">
+          <div>
+            <label className="mb-1 block text-xs font-medium text-neutral-600">
+              Titel *
+            </label>
+            <input
+              type="text"
+              value={title}
+              onChange={(e) => setTitle(e.target.value)}
+              required
+              className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400 focus:ring-1 focus:ring-neutral-400"
+              placeholder="z.B. Mundliche Verhandlung"
+            />
+          </div>
+
+          <div className="grid grid-cols-2 gap-3">
+            <div>
+              <label className="mb-1 block text-xs font-medium text-neutral-600">
+                Beginn *
+              </label>
+              <input
+                type="datetime-local"
+                value={startAt}
+                onChange={(e) => setStartAt(e.target.value)}
+                required
+                className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400 focus:ring-1 focus:ring-neutral-400"
+              />
+            </div>
+            <div>
+              <label className="mb-1 block text-xs font-medium text-neutral-600">
+                Ende
+              </label>
+              <input
+                type="datetime-local"
+                value={endAt}
+                onChange={(e) => setEndAt(e.target.value)}
+                className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400 focus:ring-1 focus:ring-neutral-400"
+              />
+            </div>
+          </div>
+
+          <div className="grid grid-cols-2 gap-3">
+            <div>
+              <label className="mb-1 block text-xs font-medium text-neutral-600">
+                Typ
+              </label>
+              <select
+                value={appointmentType}
+                onChange={(e) => setAppointmentType(e.target.value)}
+                className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400"
+              >
+                <option value="">Kein Typ</option>
+                {APPOINTMENT_TYPES.map((t) => (
+                  <option key={t.value} value={t.value}>
+                    {t.label}
+                  </option>
+                ))}
+              </select>
+            </div>
+            <div>
+              <label className="mb-1 block text-xs font-medium text-neutral-600">
+                Akte
+              </label>
+              <select
+                value={caseId}
+                onChange={(e) => setCaseId(e.target.value)}
+                className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400"
+              >
+                <option value="">Keine Akte</option>
+                {cases?.cases?.map((c) => (
+                  <option key={c.id} value={c.id}>
+                    {c.case_number} — {c.title}
+                  </option>
+                ))}
+              </select>
+            </div>
+          </div>
+
+          <div>
+            <label className="mb-1 block text-xs font-medium text-neutral-600">
+              Ort
+            </label>
+            <input
+              type="text"
+              value={location}
+              onChange={(e) => setLocation(e.target.value)}
+              className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400 focus:ring-1 focus:ring-neutral-400"
+              placeholder="z.B. UPC Munchen, Saal 3"
+            />
+          </div>
+
+          <div>
+            <label className="mb-1 block text-xs font-medium text-neutral-600">
+              Beschreibung
+            </label>
+            <textarea
+              value={description}
+              onChange={(e) => setDescription(e.target.value)}
+              rows={3}
+              className="w-full rounded-md border border-neutral-200 px-3 py-1.5 text-sm outline-none focus:border-neutral-400 focus:ring-1 focus:ring-neutral-400"
+              placeholder="Optionale Notizen zum Termin"
+            />
+          </div>
+
+          <div className="flex items-center justify-between pt-2">
+            <div>
+              {isEdit && (
+                <button
+                  type="button"
+                  onClick={() => deleteMutation.mutate()}
+                  disabled={deleteMutation.isPending}
+                  className="rounded-md px-3 py-1.5 text-sm text-red-600 hover:bg-red-50"
+                >
+                  Loschen
+                </button>
+              )}
+            </div>
+            <div className="flex items-center gap-2">
+              <button
+                type="button"
+                onClick={onClose}
+                className="rounded-md border border-neutral-200 bg-white px-3 py-1.5 text-sm text-neutral-700 hover:bg-neutral-50"
+              >
+                Abbrechen
+              </button>
+              <button
+                type="submit"
+                disabled={isPending || !title.trim() || !startAt}
+                className="rounded-md bg-neutral-900 px-3 py-1.5 text-sm font-medium text-white hover:bg-neutral-800 disabled:opacity-50"
+              >
+                {isPending ? "Speichern..." : isEdit ? "Aktualisieren" : "Erstellen"}
+              </button>
+            </div>
+          </div>
+        </form>
+      </div>
+    </div>
+  );
+}

frontend/src/components/documents/DocumentList.tsx

@@ -1,144 +0,0 @@
-"use client";
-
-import { useState } from "react";
-import { useMutation, useQueryClient } from "@tanstack/react-query";
-import { FileText, Download, Trash2, Loader2 } from "lucide-react";
-import { format } from "date-fns";
-import { de } from "date-fns/locale";
-import { toast } from "sonner";
-import { api } from "@/lib/api";
-import type { Document } from "@/lib/types";
-
-const DOC_TYPE_BADGE: Record<string, string> = {
-  schriftsatz: "bg-blue-50 text-blue-700",
-  beschluss: "bg-violet-50 text-violet-700",
-  urteil: "bg-emerald-50 text-emerald-700",
-  gutachten: "bg-amber-50 text-amber-700",
-  vertrag: "bg-cyan-50 text-cyan-700",
-  korrespondenz: "bg-neutral-100 text-neutral-600",
-};
-
-interface DocumentListProps {
-  documents: Document[];
-  caseId: string;
-}
-
-export function DocumentList({ documents, caseId }: DocumentListProps) {
-  const [deleteId, setDeleteId] = useState<string | null>(null);
-  const queryClient = useQueryClient();
-
-  const deleteMutation = useMutation({
-    mutationFn: (docId: string) => api.delete(`/documents/${docId}`),
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ["case-documents", caseId] });
-      queryClient.invalidateQueries({ queryKey: ["case", caseId] });
-      toast.success("Dokument geloescht");
-      setDeleteId(null);
-    },
-    onError: (err) => {
-      const msg =
-        err && typeof err === "object" && "error" in err
-          ? (err as { error: string }).error
-          : "Unbekannter Fehler";
-      toast.error(`Fehler beim Loeschen: ${msg}`);
-      setDeleteId(null);
-    },
-  });
-
-  if (documents.length === 0) {
-    return (
-      <p className="py-8 text-center text-sm text-neutral-400">
-        Keine Dokumente vorhanden.
-      </p>
-    );
-  }
-
-  return (
-    <div className="space-y-2">
-      {documents.map((doc) => (
-        <div
-          key={doc.id}
-          className="flex items-center justify-between rounded-md border border-neutral-200 bg-white px-4 py-3"
-        >
-          <div className="flex items-center gap-3 min-w-0">
-            <FileText className="h-4 w-4 shrink-0 text-neutral-400" />
-            <div className="min-w-0">
-              <p className="truncate text-sm font-medium text-neutral-900">
-                {doc.title}
-              </p>
-              <div className="mt-0.5 flex flex-wrap items-center gap-2 text-xs text-neutral-400">
-                {doc.doc_type && (
-                  <span
-                    className={`rounded-full px-2 py-0.5 text-xs font-medium ${
-                      DOC_TYPE_BADGE[doc.doc_type.toLowerCase()] ??
-                      "bg-neutral-100 text-neutral-600"
-                    }`}
-                  >
-                    {doc.doc_type}
-                  </span>
-                )}
-                {doc.file_size != null && (
-                  <span>{formatFileSize(doc.file_size)}</span>
-                )}
-                <span>
-                  {format(new Date(doc.created_at), "d. MMM yyyy", {
-                    locale: de,
-                  })}
-                </span>
-              </div>
-            </div>
-          </div>
-
-          <div className="flex items-center gap-1 shrink-0 ml-3">
-            <a
-              href={`/api/documents/${doc.id}`}
-              className="rounded p-1.5 text-neutral-400 hover:bg-neutral-100 hover:text-neutral-600"
-              title="Herunterladen"
-            >
-              <Download className="h-4 w-4" />
-            </a>
-
-            {deleteId === doc.id ? (
-              <div className="flex items-center gap-1">
-                <button
-                  type="button"
-                  onClick={() => deleteMutation.mutate(doc.id)}
-                  disabled={deleteMutation.isPending}
-                  className="rounded px-2 py-1 text-xs font-medium text-red-600 hover:bg-red-50"
-                >
-                  {deleteMutation.isPending ? (
-                    <Loader2 className="h-3.5 w-3.5 animate-spin" />
-                  ) : (
-                    "Loeschen"
-                  )}
-                </button>
-                <button
-                  type="button"
-                  onClick={() => setDeleteId(null)}
-                  className="rounded px-2 py-1 text-xs text-neutral-500 hover:bg-neutral-100"
-                >
-                  Abbrechen
-                </button>
-              </div>
-            ) : (
-              <button
-                type="button"
-                onClick={() => setDeleteId(doc.id)}
-                className="rounded p-1.5 text-neutral-400 hover:bg-neutral-100 hover:text-red-500"
-                title="Loeschen"
-              >
-                <Trash2 className="h-4 w-4" />
-              </button>
-            )}
-          </div>
-        </div>
-      ))}
-    </div>
-  );
-}
-
-function formatFileSize(bytes: number): string {
-  if (bytes < 1024) return `${bytes} B`;
-  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(0)} KB`;
-  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
-}

frontend/src/components/documents/DocumentUpload.tsx

@@ -1,144 +0,0 @@
-"use client";
-
-import { useCallback, useState } from "react";
-import { useDropzone } from "react-dropzone";
-import { useMutation, useQueryClient } from "@tanstack/react-query";
-import { Upload, FileText, X, Loader2 } from "lucide-react";
-import { toast } from "sonner";
-import { api } from "@/lib/api";
-import type { Document } from "@/lib/types";
-
-interface DocumentUploadProps {
-  caseId: string;
-}
-
-export function DocumentUpload({ caseId }: DocumentUploadProps) {
-  const [files, setFiles] = useState<File[]>([]);
-  const queryClient = useQueryClient();
-
-  const uploadMutation = useMutation({
-    mutationFn: async (file: File) => {
-      const formData = new FormData();
-      formData.append("file", file);
-      formData.append("title", file.name);
-      return api.postFormData<Document>(`/cases/${caseId}/documents`, formData);
-    },
-    onSuccess: () => {
-      queryClient.invalidateQueries({ queryKey: ["case-documents", caseId] });
-      queryClient.invalidateQueries({ queryKey: ["case", caseId] });
-    },
-  });
-
-  const onDrop = useCallback((acceptedFiles: File[]) => {
-    setFiles((prev) => [...prev, ...acceptedFiles]);
-  }, []);
-
-  const { getRootProps, getInputProps, isDragActive } = useDropzone({
-    onDrop,
-    disabled: uploadMutation.isPending,
-  });
-
-  function removeFile(index: number) {
-    setFiles((prev) => prev.filter((_, i) => i !== index));
-  }
-
-  async function handleUpload() {
-    if (files.length === 0) return;
-
-    let successCount = 0;
-    for (const file of files) {
-      try {
-        await uploadMutation.mutateAsync(file);
-        successCount++;
-      } catch (err) {
-        const msg =
-          err && typeof err === "object" && "error" in err
-            ? (err as { error: string }).error
-            : file.name;
-        toast.error(`Fehler beim Hochladen: ${msg}`);
-      }
-    }
-
-    if (successCount > 0) {
-      toast.success(
-        successCount === 1
-          ? "Dokument hochgeladen"
-          : `${successCount} Dokumente hochgeladen`,
-      );
-      setFiles([]);
-    }
-  }
-
-  return (
-    <div className="space-y-3">
-      <div
-        {...getRootProps()}
-        className={`cursor-pointer rounded-md border-2 border-dashed px-6 py-6 text-center transition-colors ${
-          isDragActive
-            ? "border-neutral-500 bg-neutral-50"
-            : "border-neutral-300 hover:border-neutral-400"
-        } ${uploadMutation.isPending ? "pointer-events-none opacity-50" : ""}`}
-      >
-        <input {...getInputProps()} />
-        <Upload className="mx-auto h-6 w-6 text-neutral-400" />
-        <p className="mt-2 text-sm text-neutral-600">
-          Dateien hierher ziehen oder{" "}
-          <span className="font-medium text-neutral-900">durchsuchen</span>
-        </p>
-        <p className="mt-1 text-xs text-neutral-400">Max. 50 MB pro Datei</p>
-      </div>
-
-      {files.length > 0 && (
-        <div className="space-y-2">
-          {files.map((file, i) => (
-            <div
-              key={`${file.name}-${i}`}
-              className="flex items-center gap-3 rounded-md border border-neutral-200 bg-neutral-50 px-3 py-2"
-            >
-              <FileText className="h-4 w-4 shrink-0 text-neutral-500" />
-              <div className="min-w-0 flex-1">
-                <p className="truncate text-sm text-neutral-900">{file.name}</p>
-                <p className="text-xs text-neutral-400">
-                  {formatFileSize(file.size)}
-                </p>
-              </div>
-              <button
-                type="button"
-                onClick={() => removeFile(i)}
-                disabled={uploadMutation.isPending}
-                className="rounded p-1 text-neutral-400 hover:bg-neutral-200 hover:text-neutral-600"
-              >
-                <X className="h-3.5 w-3.5" />
-              </button>
-            </div>
-          ))}
-
-          <button
-            type="button"
-            onClick={handleUpload}
-            disabled={uploadMutation.isPending}
-            className="inline-flex items-center gap-2 rounded-md bg-neutral-900 px-3 py-1.5 text-sm font-medium text-white hover:bg-neutral-800 disabled:opacity-50"
-          >
-            {uploadMutation.isPending ? (
-              <>
-                <Loader2 className="h-3.5 w-3.5 animate-spin" />
-                Hochladen...
-              </>
-            ) : (
-              <>
-                <Upload className="h-3.5 w-3.5" />
-                {files.length === 1 ? "Hochladen" : `${files.length} Dateien hochladen`}
-              </>
-            )}
-          </button>
-        </div>
-      )}
-    </div>
-  );
-}
-
-function formatFileSize(bytes: number): string {
-  if (bytes < 1024) return `${bytes} B`;
-  if (bytes < 1024 * 1024) return `${(bytes / 1024).toFixed(0)} KB`;
-  return `${(bytes / (1024 * 1024)).toFixed(1)} MB`;
-}