V 2.2.1 Anmeldung per Passkey (WebAuthn)

Passkey-Login analog zu werte-next: auf der Login-Seite "Mit Passkey
anmelden", Verwaltung der eigenen Passkeys im neuen Tab Einstellungen.
Das Passwort bleibt als Alternative bestehen.

- lib/webauthn.ts, lib/passkeys.ts sowie API-Routen unter /api/passkey
- proxy.ts: /api/passkey/authenticate ohne Session erreichbar
- TabLayout: dritter Tab Einstellungen (Index-Tabs statt Route wie werte)
- RP-Konfiguration ueber AUSGABEN_RP_*, da sich die .env auf dem Server
  mit anderen Apps teilt, die RP_ID/RP_ORIGIN bereits belegen
- Eigene Tabelle ausgaben_passkeys aus demselben Grund: werte-next nutzt
  in der gemeinsamen Datenbank RXF bereits die Tabelle passkeys
- eslint.config.mjs auf die Flat-Config von eslint-config-next umgestellt

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

.env.example

@@ -12,3 +12,19 @@ AUTH_USERS=admin:$2b$10$DKLO7uQPmdAw9Z64NChro.8mOsnqZQaRZjctWDojIkK926ROBVyJW,us
 
 # Secret key for JWT session encryption (change in production!)
 AUTH_SECRET=your-super-secret-key-change-this-in-production
+
+# Passkeys (WebAuthn) — Relying Party
+# RP_ID = nur der Host (ohne Protokoll/Port), RP_ORIGIN = volle URL
+#
+# Bei "npm run dev" liest Next.js RP_ID/RP_ORIGIN/RP_NAME direkt aus dieser Datei.
+# Ohne Angabe gilt localhost / http://localhost:3005 — für lokale Entwicklung
+# können die Zeilen also entfallen.
+# RP_ID=localhost
+# RP_ORIGIN=http://localhost:3005
+
+# Bei Docker Compose werden die AUSGABEN_RP_*-Variablen ausgewertet und im
+# Container auf RP_* abgebildet. Eigene Namen deshalb, weil die .env auf dem
+# Server mit anderen Apps geteilt wird, die RP_ID/RP_ORIGIN schon belegen.
+AUSGABEN_RP_ID=ausgaben.fuerst-stuttgart.de
+AUSGABEN_RP_ORIGIN=https://ausgaben.fuerst-stuttgart.de
+AUSGABEN_RP_NAME=Ausgaben-Log

.vscode/launch.json

@@ -0,0 +1,17 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Next.js Debug",
+      "runtimeExecutable": "node",
+      "args": [
+        "--inspect-brk",
+        "${workspaceFolder}/node_modules/.bin/next",
+        "dev"
+      ],
+      "console": "integratedTerminal"
+    }
+  ]
+}

AUTH_README.md

@@ -0,0 +1,203 @@
+# Wiederverwendbare Authentifizierung
+
+Diese Authentifizierungslösung kann einfach in andere Next.js Projekte übernommen werden.
+
+## Komponenten
+
+### 1. Core Libraries (wiederverwendbar)
+- `/lib/auth.ts` - Authentifizierungslogik (Benutzerverwaltung über .env)
+- `/lib/session.ts` - JWT-basiertes Session-Management
+- `/middleware.ts` - Route-Schutz Middleware
+- `/lib/webauthn.ts` - Passkey-Logik (Registrierung & Anmeldung, WebAuthn)
+- `/lib/passkeys.ts` - Datenbankzugriff auf die Tabelle `ausgaben_passkeys`
+
+### 2. UI Komponenten (wiederverwendbar)
+- `/app/login/page.tsx` - Login-Seite (Passwort + „Mit Passkey anmelden")
+- `/app/login/actions.ts` - Server Actions für Login/Logout
+- `/components/LogoutButton.tsx` - Logout-Button Komponente
+- `/components/Passkeys.tsx` - Verwaltung der eigenen Passkeys (Tab *Einstellungen*)
+
+### 3. API-Routen (Passkeys)
+- `/app/api/passkey/route.ts` - eigene Passkeys auflisten (GET) / löschen (DELETE)
+- `/app/api/passkey/register/route.ts` - Passkey registrieren (Session erforderlich)
+- `/app/api/passkey/authenticate/route.ts` - Anmeldung per Passkey (öffentlich)
+
+## Installation in neuen Projekten
+
+### 1. Dependencies installieren
+```bash
+npm install jose bcryptjs
+npm install --save-dev @types/bcryptjs
+
+# Für Passkeys (WebAuthn):
+npm install @simplewebauthn/server @simplewebauthn/browser
+```
+
+### 2. Dateien kopieren
+Kopiere folgende Dateien in dein neues Projekt:
+- `lib/auth.ts`
+- `lib/session.ts`
+- `middleware.ts`
+- `app/login/` (gesamter Ordner)
+- `scripts/generate-password.js` (Passwort-Hash Generator)
+- `components/LogoutButton.tsx` (optional)
+
+### 3. Passwort-Hashes generieren
+Verwende das mitgelieferte Script, um sichere Passwort-Hashes zu erstellen:
+
+```bash
+# Interactive Mode
+node scripts/generate-password.js
+
+# Mit Passwort als Argument
+node scripts/generate-password.js meinPasswort123
+```
+
+Das Script gibt einen bcrypt-Hash aus, den du in der `.env` verwenden kannst.
+
+### 4. Umgebungsvariablen einrichten
+Füge zu deiner `.env` hinzu:
+
+```env
+# Authentifizierung
+# Format: username:passwordHash,username2:passwordHash2
+# Verwende 'node scripts/generate-password.js' um Hashes zu generieren
+AUTH_USERS=admin:$2b$10$DKLO7uQPmdAw9Z64NChro...,user1:$2b$10$K613Z70Hodr6xyEh10Mw2u...
+
+# Secret Key für JWT (unbedingt ändern in Production!)
+AUTH_SECRET=your-super-secret-key-change-this
+
+# Passkeys (WebAuthn) — RP_ID = nur der Host, RP_ORIGIN = volle URL
+RP_ID=ausgaben.fuerst-stuttgart.de
+RP_ORIGIN=https://ausgaben.fuerst-stuttgart.de
+RP_NAME=Ausgaben-Log
+```
+
+### 5. Logout-Button einbinden (optional)
+```tsx
+import LogoutButton from '@/components/LogoutButton';
+
+// In deiner Komponente:
+<LogoutButton />
+```
+
+## Konfiguration
+
+### Benutzer hinzufügen/entfernen
+
+1. Generiere einen Passwort-Hash:
+```bash
+node scripts/generate-password.js neuesPasswort
+```
+
+2. Editiere die `AUTH_USERS` Variable in der `.env`:
+```env
+AUTH_USERS=user1:$2b$10$hash1...,user2:$2b$10$hash2...,user3:$2b$10$hash3...
+```
+
+### Authentifizierung deaktivieren
+Entferne die `AUTH_USERS` Variable oder setze sie auf einen leeren String:
+```env
+AUTH_USERS=
+```
+
+### Session-Dauer anpassen
+Editiere in `lib/session.ts`:
+```ts
+const SESSION_DURATION = 7 * 24 * 60 * 60 * 1000; // 7 Tage
+```
+
+### Geschützte Routen anpassen
+Editiere in `middleware.ts` die `publicPaths`:
+```ts
+const publicPaths = ['/login', '/api/passkey/authenticate', '/public-page'];
+```
+Die Passkey-Anmeldung muss ohne Session erreichbar sein.
+
+### Passkeys verwalten
+- **Registrieren**: angemeldet im Tab *Einstellungen* → „Passkey hinzufügen".
+- **Anmelden**: auf der Login-Seite „Mit Passkey anmelden".
+- **Speicherung**: Tabelle `ausgaben_passkeys` (siehe `create_table.sql`), wird beim
+  ersten Zugriff automatisch angelegt, sofern der DB-Benutzer CREATE-Rechte hat.
+  **Wichtig bei Übernahme in ein anderes Projekt**: Teilen sich mehrere Apps eine
+  Datenbank, braucht jede App einen eigenen Tabellennamen (`TABLE` in
+  `lib/passkeys.ts`) — sonst sehen und löschen sie gegenseitig ihre Passkeys.
+- `RP_ID` muss exakt dem Hostnamen entsprechen (ohne Protokoll/Port). Ändert sich
+  `RP_ID`, werden bereits registrierte Passkeys ungültig.
+- WebAuthn funktioniert nur über **HTTPS** oder auf `localhost`.
+
+## Sicherheitshinweise
+
+1. **AUTH_SECRET ändern**: Verwende in Production einen starken, zufälligen Schlüssel
+2. **HTTPS verwenden**: In Production immer HTTPS aktivieren
+3. **Passwort-Hashing**: Passwörter werden mit bcrypt gehashed (10 Salt Rounds)
+4. **Keine Klartext-Passwörter**: Verwende immer das Script zur Hash-Generierung
+
+## Passwort-Hash Generator
+
+Das Script `scripts/generate-password.js` verwendet bcrypt mit 10 Salt Rounds, um sichere Passwort-Hashes zu erstellen.
+
+### Verwendung
+
+Interactive Mode (empfohlen für sensible Passwörter):
+```bash
+npm run generate-password
+# oder
+node scripts/generate-password.js
+# Passwort wird interaktiv abgefragt
+```
+
+Mit Argument:
+```bash
+npm run generate-password -- meinPasswort
+# oder
+node scripts/generate-password.js meinPasswort
+```
+
+### Ausgabe
+```
+🔐 Generiere Passwort-Hash...
+
+✅ Hash generiert:
+────────────────────────────────────────────────────────────────────────────────
+$2b$10$DKLO7uQPmdAw9Z64NChro.8mOsnqZQaRZjctWDojIkK926ROBVyJW
+────────────────────────────────────────────────────────────────────────────────
+
+📝 Verwende diesen Hash in der .env Datei:
+AUTH_USERS=username:$2b$10$DKLO7uQPmdAw9Z64NChro.8mOsnqZQaRZjctWDojIkK926ROBVyJW
+```
+
+## Erweiterte Verwendung
+
+### Session-Informationen abrufen
+```ts
+import { getSession } from '@/lib/session';
+
+const session = await getSession();
+if (session) {
+  console.log('Eingeloggt als:', session.username);
+}
+```
+
+### Programmatisch prüfen, ob authentifiziert
+```ts
+import { isAuthenticated } from '@/lib/session';
+
+const authenticated = await isAuthenticated();
+```
+
+### In Server Components
+```tsx
+import { getSession } from '@/lib/session';
+import { redirect } from 'next/navigation';
+
+export default async function ProtectedPage() {
+  const session = await getSession();
+  
+  if (!session) {
+    redirect('/login');
+  }
+  
+  return <div>Hallo {session.username}!</div>;
+}
+```

DEPLOYMENT.md

@@ -66,6 +66,33 @@ Falls die Tabelle `Ausgaben` noch nicht existiert:
 mysql -u root -p RXF < create_table.sql
 ```
 
+Das Script legt auch die Tabelle `ausgaben_passkeys` für die Passkey-Anmeldung an. Die
+Anwendung erstellt diese Tabelle beim ersten Zugriff selbst — hat der DB-Benutzer
+keine CREATE-Rechte, das SQL aus `create_table.sql` manuell ausführen.
+
+### Passkeys (WebAuthn) konfigurieren
+
+Im Container erwartet die Anwendung `RP_ID`, `RP_ORIGIN` und `RP_NAME`. In der
+Compose-Datei werden diese aus den **app-eigenen** Variablen `AUSGABEN_RP_*`
+befüllt — mit den Produktionswerten als Default:
+
+```yaml
+- RP_ID=${AUSGABEN_RP_ID:-ausgaben.fuerst-stuttgart.de}
+- RP_ORIGIN=${AUSGABEN_RP_ORIGIN:-https://ausgaben.fuerst-stuttgart.de}
+- RP_NAME=${AUSGABEN_RP_NAME:-Ausgaben-Log}
+```
+
+**Warum eigene Namen**: Auf dem Server (`/opt/stacks/myapp/`) laufen mehrere Apps im
+selben Stack und teilen sich eine `.env`. Dort sind `RP_ID`/`RP_ORIGIN` bereits für
+werte-next gesetzt. Würde diese App dieselben Namen lesen, bekäme sie werte's Host —
+und die Passkey-Anmeldung schlüge fehl. Die Defaults oben greifen, solange in der
+geteilten `.env` keine `AUSGABEN_RP_*` stehen; ein Eintrag dort überschreibt sie.
+
+**Wichtig**: `RP_ID` muss exakt dem Hostnamen entsprechen (ohne `https://` und ohne
+Port), `RP_ORIGIN` der vollen URL. Passen die Werte nicht zur aufgerufenen Adresse,
+schlägt die Passkey-Anmeldung fehl. Bereits registrierte Passkeys werden bei einer
+Änderung von `RP_ID` ungültig. WebAuthn setzt HTTPS voraus (via Traefik).
+
 ### Datenbank-Verbindung
 
 Die Anwendung verwendet die gleiche MySQL-Datenbank wie die alte Ausgaben-Anwendung:

Dockerfile

@@ -37,7 +37,7 @@ RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
 
 # Copy necessary files
-COPY --from=builder /app/public ./public
+# COPY --from=builder /app/public ./public
 COPY --from=builder --chown=nextjs:nodejs /app/.next/standalone ./
 COPY --from=builder --chown=nextjs:nodejs /app/.next/static ./.next/static
 

README.md

@@ -23,6 +23,27 @@ Dies ist die modernisierte Version des alten PHP/jQuery-basierten Ausgaben-Progr
   - Bearbeiten-Funktion: Klick auf Eintrag lädt ihn ins Formular
   - Filterung nach aktivem TYP (Haushalt/Privat)
 
+- **Anmeldung per Passkey** (WebAuthn) alternativ zu Benutzername/Passwort
+
+## Anmeldung & Passkeys
+
+Benutzer und bcrypt-Passworthashes stehen in `AUTH_USERS`
+(Format `name:hash,name2:hash2`), die Session ist ein JWT-Cookie (`AUTH_SECRET`).
+
+Zusätzlich kann sich jeder Benutzer per **Passkey** anmelden (Fingerabdruck,
+Gesichtserkennung oder Geräte-PIN). Das Passwort bleibt als Alternative bestehen.
+
+- **Registrieren**: nach der Anmeldung im Tab *Einstellungen* → „Passkey hinzufügen".
+  Der Passkey wird dem angemeldeten Benutzer zugeordnet; mehrere Geräte sind möglich.
+- **Anmelden**: auf der Login-Seite „Mit Passkey anmelden".
+- **Speicherung**: Tabelle `ausgaben_passkeys` (siehe `create_table.sql`); sie wird beim
+  ersten Zugriff automatisch angelegt, falls der DB-Benutzer CREATE-Rechte hat. Der
+  app-spezifische Name ist nötig, weil sich mehrere Apps auf dem Server die Datenbank
+  `RXF` teilen und werte-next dort die Tabelle `passkeys` belegt.
+- **Konfiguration**: `RP_ID` (nur der Host), `RP_ORIGIN` (volle URL), `RP_NAME`.
+  Lokal sind `localhost` / `http://localhost:3005` voreingestellt.
+- **Wichtig**: WebAuthn funktioniert nur über **HTTPS** oder auf `localhost`.
+
 ## Technologie-Stack
 
 - **Frontend**: Next.js 16, React 19, TypeScript

add_kategorie.sql

@@ -0,0 +1,5 @@
+-- Migration: Kategorie-Spalte zur Ausgaben-Tabelle hinzufügen
+-- Ausführen: mysql -u <user> -p <database> < add_kategorie.sql
+
+ALTER TABLE Ausgaben
+  ADD COLUMN Kat VARCHAR(4) NOT NULL DEFAULT 'L' AFTER Was;

app/api/ausgaben/[id]/route.ts

@@ -10,7 +10,7 @@ export async function PUT(
   try {
     const { id } = await context.params;
     const body = await request.json();
-    const { Datum, Wo, Was, Wieviel, Wie, TYP } = body;
+    const { Datum, Wo, Was, Kat, Wieviel, Wie, TYP } = body;
 
     if (!Datum || !Wo || !Was || !Wieviel || !Wie || TYP === undefined) {
       return NextResponse.json(
@@ -23,7 +23,7 @@ export async function PUT(
 
     const query = `
       UPDATE Ausgaben
-      SET Datum = ?, Wo = ?, Was = ?, Wieviel = ?, Wie = ?, TYP = ?
+      SET Datum = ?, Wo = ?, Was = ?, Kat = ?, Wieviel = ?, Wie = ?, TYP = ?
       WHERE ID = ?
     `;
 
@@ -31,6 +31,7 @@ export async function PUT(
       Datum,
       Wo,
       Was,
+      Kat || 'L',
       parseFloat(Wieviel),
       Wie,
       TYP,

app/api/ausgaben/route.ts

@@ -15,7 +15,7 @@ export async function GET(request: Request) {
     const pool = getDbPool();
 
     let query = `SELECT 
-      ID, Datum, Wo, Was, Wieviel, Wie, TYP,
+      ID, Datum, Wo, Was, Kat, Wieviel, Wie, TYP,
       CASE DAYOFWEEK(Datum)
         WHEN 1 THEN 'Sonntag'
         WHEN 2 THEN 'Montag'
@@ -68,7 +68,7 @@ export async function GET(request: Request) {
 export async function POST(request: Request) {
   try {
     const body = await request.json();
-    const { Datum, Wo, Was, Wieviel, Wie, TYP } = body;
+    const { Datum, Wo, Was, Kat, Wieviel, Wie, TYP } = body;
 
     if (!Datum || !Wo || !Was || !Wieviel || !Wie || TYP === undefined) {
       return NextResponse.json(
@@ -80,14 +80,15 @@ export async function POST(request: Request) {
     const pool = getDbPool();
 
     const query = `
-      INSERT INTO Ausgaben (Datum, Wo, Was, Wieviel, Wie, TYP)
+      INSERT INTO Ausgaben (Datum, Wo, Was, Kat, Wieviel, Wie, TYP)
-      VALUES (?, ?, ?, ?, ?, ?)
+      VALUES (?, ?, ?, ?, ?, ?, ?)
     `;
 
     const [result] = await pool.query<ResultSetHeader>(query, [
       Datum,
       Wo,
       Was,
+      Kat || 'L',
       parseFloat(Wieviel),
       Wie,
       TYP,

app/api/ausgaben/stats/route.ts

@@ -56,6 +56,21 @@ export async function GET(request: Request) {
 
     const data = rows[0] || {};
 
+    // Per-category breakdown
+    const [katRows] = await pool.query<RowDataPacket[]>(
+      `SELECT Kat, SUM(Wieviel) as total
+       FROM Ausgaben
+       WHERE YEAR(Datum) = ? AND MONTH(Datum) = ? AND TYP = ?
+       GROUP BY Kat
+       HAVING total > 0
+       ORDER BY total DESC`,
+      [year, month, parseInt(typ)]
+    );
+    const katStats: Record<string, number> = {};
+    for (const row of katRows) {
+      katStats[row.Kat] = parseFloat(row.total) || 0;
+    }
+
     // Convert string values from MySQL to numbers
     const parsedData: any = {
       totalAusgaben: parseFloat(data.totalAusgaben) || 0,
@@ -77,7 +92,7 @@ export async function GET(request: Request) {
 
     return NextResponse.json({
       success: true,
-      data: parsedData,
+      data: { ...parsedData, katStats },
     });
   } catch (error) {
     console.error('Database error:', error);

app/api/categories/route.ts

@@ -0,0 +1,33 @@
+import { NextResponse } from 'next/server';
+import fs from 'fs';
+import path from 'path';
+
+export interface Category {
+  value: string;
+  label: string;
+}
+
+// GET /api/categories - Fetch categories from categories.txt
+export async function GET() {
+  try {
+    const filePath = path.join(process.cwd(), 'categories.txt');
+    const content = fs.readFileSync(filePath, 'utf-8');
+
+    const categories: Category[] = content
+      .split('\n')
+      .map((line) => line.trim())
+      .filter((line) => line.includes('='))
+      .map((line) => {
+        const [value, label] = line.split('=');
+        return { value: value.trim(), label: label.trim() };
+      });
+
+    return NextResponse.json({ success: true, data: categories });
+  } catch (error) {
+    console.error('Error reading categories:', error);
+    return NextResponse.json(
+      { success: false, error: 'Could not load categories' },
+      { status: 500 }
+    );
+  }
+}

app/api/passkey/authenticate/route.ts

@@ -0,0 +1,28 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { buildAuthenticationOptions, finishAuthentication } from '@/lib/webauthn';
+import { createSession } from '@/lib/session';
+
+// Öffentlich (kein Login): Optionen für die Anmeldung per Passkey.
+export async function GET() {
+  try {
+    return NextResponse.json(await buildAuthenticationOptions());
+  } catch (error) {
+    console.error('GET /api/passkey/authenticate:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}
+
+// Öffentlich: Verifiziert die Anmelde-Antwort und erstellt bei Erfolg die Session.
+export async function POST(request: NextRequest) {
+  try {
+    const body = await request.json();
+    const result = await finishAuthentication(body?.response);
+    if (!result.ok) return NextResponse.json({ error: result.error }, { status: 401 });
+
+    await createSession(result.username);
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    console.error('POST /api/passkey/authenticate:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}

app/api/passkey/register/route.ts

@@ -0,0 +1,36 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getSession } from '@/lib/session';
+import { buildRegistrationOptions, finishRegistration } from '@/lib/webauthn';
+
+// Optionen für die Registrierung eines neuen Passkeys (Session erforderlich).
+export async function GET() {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ error: 'Nicht angemeldet' }, { status: 401 });
+
+  try {
+    return NextResponse.json(await buildRegistrationOptions(session.username));
+  } catch (error) {
+    console.error('GET /api/passkey/register:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}
+
+// Verifiziert die Registrierungs-Antwort und speichert den Passkey.
+export async function POST(request: NextRequest) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ error: 'Nicht angemeldet' }, { status: 401 });
+
+  try {
+    const body = await request.json();
+    const result = await finishRegistration(
+      session.username,
+      body?.response,
+      String(body?.label ?? '')
+    );
+    if (!result.ok) return NextResponse.json({ error: result.error }, { status: 400 });
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    console.error('POST /api/passkey/register:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}

app/api/passkey/route.ts

@@ -0,0 +1,40 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { getSession } from '@/lib/session';
+import { listPasskeys, deletePasskey } from '@/lib/passkeys';
+
+// Liste der eigenen Passkeys (ohne öffentlichen Schlüssel).
+export async function GET() {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ error: 'Nicht angemeldet' }, { status: 401 });
+
+  try {
+    const passkeys = (await listPasskeys(session.username)).map((pk) => ({
+      credentialId: pk.credentialId,
+      label: pk.label,
+      createdAt: pk.createdAt,
+      lastUsedAt: pk.lastUsedAt,
+    }));
+    return NextResponse.json({ passkeys });
+  } catch (error) {
+    console.error('GET /api/passkey:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}
+
+// Löscht einen eigenen Passkey anhand seiner credentialId (?id=...).
+export async function DELETE(request: NextRequest) {
+  const session = await getSession();
+  if (!session) return NextResponse.json({ error: 'Nicht angemeldet' }, { status: 401 });
+
+  const id = request.nextUrl.searchParams.get('id');
+  if (!id) return NextResponse.json({ error: 'Keine ID angegeben.' }, { status: 400 });
+
+  try {
+    const removed = await deletePasskey(id, session.username);
+    if (!removed) return NextResponse.json({ error: 'Passkey nicht gefunden.' }, { status: 404 });
+    return NextResponse.json({ ok: true });
+  } catch (error) {
+    console.error('DELETE /api/passkey:', error);
+    return NextResponse.json({ error: 'Serverfehler' }, { status: 500 });
+  }
+}

app/login/actions.ts

@@ -0,0 +1,28 @@
+'use server';
+
+import { verifyCredentials } from '@/lib/auth';
+import { createSession, deleteSession } from '@/lib/session';
+import { redirect } from 'next/navigation';
+
+export async function login(prevState: any, formData: FormData) {
+  const username = formData.get('username') as string;
+  const password = formData.get('password') as string;
+
+  if (!username || !password) {
+    return { error: 'Bitte Benutzername und Passwort eingeben' };
+  }
+
+  const isValid = await verifyCredentials(username, password);
+
+  if (!isValid) {
+    return { error: 'Ungültige Anmeldedaten' };
+  }
+
+  await createSession(username);
+  redirect('/');
+}
+
+export async function logout() {
+  await deleteSession();
+  redirect('/login');
+}

app/login/page.tsx

@@ -0,0 +1,175 @@
+'use client';
+
+import { useActionState, useState } from 'react';
+import { startAuthentication } from '@simplewebauthn/browser';
+import { login } from './actions';
+import packageJson from '@/package.json';
+
+export default function LoginPage() {
+  const [state, loginAction, isPending] = useActionState(login, undefined);
+  const [showPassword, setShowPassword] = useState(false);
+  const [passkeyBusy, setPasskeyBusy] = useState(false);
+  const [passkeyError, setPasskeyError] = useState<string | null>(null);
+
+  async function handlePasskeyLogin() {
+    setPasskeyError(null);
+    setPasskeyBusy(true);
+    try {
+      const optRes = await fetch('/api/passkey/authenticate');
+      if (!optRes.ok) throw new Error('Optionen konnten nicht geladen werden.');
+      const optionsJSON = await optRes.json();
+
+      const response = await startAuthentication({ optionsJSON });
+
+      const verifyRes = await fetch('/api/passkey/authenticate', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ response }),
+      });
+      if (!verifyRes.ok) {
+        const data = await verifyRes.json().catch(() => null);
+        throw new Error(data?.error ?? 'Anmeldung mit Passkey fehlgeschlagen.');
+      }
+      window.location.href = '/';
+    } catch (err) {
+      // Abbruch durch Nutzer (NotAllowedError) nicht als Fehler anzeigen.
+      if (err instanceof Error && err.name === 'NotAllowedError') {
+        setPasskeyError(null);
+      } else {
+        setPasskeyError(err instanceof Error ? err.message : 'Anmeldung mit Passkey fehlgeschlagen.');
+      }
+    } finally {
+      setPasskeyBusy(false);
+    }
+  }
+
+  const version = packageJson.version;
+  const buildDate = process.env.NEXT_PUBLIC_BUILD_DATE || new Date().toLocaleDateString('de-DE', { day: '2-digit', month: '2-digit', year: 'numeric' });
+
+  return (
+    <div className="min-h-screen bg-white py-4 px-4">
+      <main className="max-w-6xl mx-auto border-2 border-black rounded-lg p-6 bg-[#FFFFDD]">
+        <div className="flex justify-between items-center mb-6">
+          <h1 className="text-3xl font-bold">Ausgaben - Log</h1>
+        </div>
+
+        <div className="flex justify-center py-10">
+          <div className="w-full max-w-sm bg-white border border-gray-300 rounded-xl shadow-md p-8">
+            <h2 className="text-xl font-semibold text-gray-900 mb-6 text-center">Anmeldung</h2>
+
+            <form action={loginAction} className="space-y-5">
+              <div>
+                <label
+                  htmlFor="username"
+                  className="block text-sm font-medium text-gray-700 mb-1"
+                >
+                  Benutzername
+                </label>
+                <input
+                  id="username"
+                  name="username"
+                  type="text"
+                  required
+                  autoComplete="off"
+                  className="w-full px-3 py-2 border-2 border-gray-400 rounded-lg bg-white text-gray-900 focus:border-blue-500 focus:outline-none text-sm"
+                  placeholder="Benutzername"
+                  disabled={isPending}
+                />
+              </div>
+
+              <div>
+                <label
+                  htmlFor="password"
+                  className="block text-sm font-medium text-gray-700 mb-1"
+                >
+                  Passwort
+                </label>
+                <div className="relative">
+                  <input
+                    id="password"
+                    name="password"
+                    type={showPassword ? 'text' : 'password'}
+                    required
+                    autoComplete="new-password"
+                    className="w-full px-3 py-2 pr-10 border-2 border-gray-400 rounded-lg bg-white text-gray-900 focus:border-blue-500 focus:outline-none text-sm"
+                    placeholder="Passwort"
+                    disabled={isPending}
+                  />
+                  <button
+                    type="button"
+                    onClick={() => setShowPassword(v => !v)}
+                    tabIndex={-1}
+                    aria-label={showPassword ? 'Passwort verbergen' : 'Passwort anzeigen'}
+                    className="absolute inset-y-0 right-0 px-3 flex items-center text-gray-500 hover:text-gray-800"
+                  >
+                    {showPassword ? (
+                      <svg xmlns="http://www.w3.org/2000/svg" className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M13.875 18.825A10.05 10.05 0 0112 19c-4.478 0-8.268-2.943-9.543-7a9.97 9.97 0 011.563-3.029m5.858.908a3 3 0 114.243 4.243M9.878 9.878l4.242 4.242M9.88 9.88l-3.29-3.29m7.532 7.532l3.29 3.29M3 3l3.59 3.59m0 0A9.953 9.953 0 0112 5c4.478 0 8.268 2.943 9.543 7a10.025 10.025 0 01-4.132 4.411m0 0L21 21" />
+                      </svg>
+                    ) : (
+                      <svg xmlns="http://www.w3.org/2000/svg" className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 12a3 3 0 11-6 0 3 3 0 016 0z" />
+                        <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M2.458 12C3.732 7.943 7.523 5 12 5c4.478 0 8.268 2.943 9.542 7-1.274 4.057-5.064 7-9.542 7-4.477 0-8.268-2.943-9.542-7z" />
+                      </svg>
+                    )}
+                  </button>
+                </div>
+              </div>
+
+              {state?.error && (
+                <div className="bg-red-50 border border-red-300 text-red-700 px-3 py-2 rounded-lg text-sm">
+                  {state.error}
+                </div>
+              )}
+
+              <button
+                type="submit"
+                disabled={isPending}
+                className="w-full py-2 px-4 bg-[#85B7D7] hover:bg-[#6a9fc5] text-black font-medium rounded-lg transition-colors disabled:opacity-50 disabled:cursor-not-allowed text-sm"
+              >
+                {isPending ? 'Anmeldung läuft...' : 'Anmelden'}
+              </button>
+            </form>
+
+            <div className="flex items-center gap-3 my-5">
+              <div className="h-px flex-1 bg-gray-200" />
+              <span className="text-xs text-gray-400">oder</span>
+              <div className="h-px flex-1 bg-gray-200" />
+            </div>
+
+            <button
+              type="button"
+              onClick={handlePasskeyLogin}
+              disabled={passkeyBusy}
+              className="w-full py-2 px-4 flex items-center justify-center gap-2 border-2 border-gray-400 hover:border-blue-500 text-gray-900 font-medium rounded-lg transition-colors disabled:opacity-50 disabled:cursor-not-allowed text-sm"
+            >
+              <svg xmlns="http://www.w3.org/2000/svg" className="h-5 w-5" fill="none" viewBox="0 0 24 24" stroke="currentColor">
+                <path strokeLinecap="round" strokeLinejoin="round" strokeWidth={2} d="M15 7a2 2 0 012 2m4 0a6 6 0 01-7.743 5.743L11 17H9v2H7v2H4a1 1 0 01-1-1v-2.586a1 1 0 01.293-.707l5.964-5.964A6 6 0 1121 9z" />
+              </svg>
+              {passkeyBusy ? 'Anmeldung läuft...' : 'Mit Passkey anmelden'}
+            </button>
+
+            {passkeyError && (
+              <div className="mt-4 bg-red-50 border border-red-300 text-red-700 px-3 py-2 rounded-lg text-sm">
+                {passkeyError}
+              </div>
+            )}
+          </div>
+        </div>
+
+        {/* Footer */}
+        <footer className="mt-8 flex justify-between items-center text-sm text-gray-600 px-4 ">
+          <div>
+            <a href="mailto:rxf@gmx.de" className="text-blue-600 hover:underline">
+              mailto:rxf@gmx.de
+            </a>
+          </div>
+          <div className="text-right">
+            Version {version} - {buildDate}
+          </div>
+        </footer>
+      </main>
+    </div>
+  );
+}
+

app/login/page.tsx_xx

@@ -0,0 +1,83 @@
+'use client';
+
+import { useActionState } from 'react';
+import { login } from './actions';
+
+export default function LoginPage() {
+  const [state, loginAction, isPending] = useActionState(login, undefined);
+
+  return (
+    <div className="min-h-screen bg-white py-4 px-4">
+      <main className="max-w-7xl mx-auto border-2 border-black rounded-lg p-6 bg-[#FFFFDD]">
+        <h1 className="text-3xl font-bold mb-6">Ausgaben - Log</h1>
+
+        <div className="flex items-center justify-center py-8">
+          <div className="max-w-md w-full space-y-8 bg-white p-8 rounded-2xl shadow-xl">
+            <div className="text-center">
+              <h2 className="text-2xl font-bold mb-2">Anmeldung</h2>
+              <p className="text-gray-600">
+                Bitte melden Sie sich an, um fortzufahren
+              </p>
+            </div>
+
+            <form action={loginAction} className="mt-8 space-y-6">
+              <div className="space-y-4">
+                <div>
+                  <label
+                    htmlFor="username"
+                    className="block text-sm font-medium text-gray-700 mb-1"
+                  >
+                    Benutzername
+                  </label>
+                  <input
+                    id="username"
+                    name="username"
+                    type="text"
+                    required
+                    autoComplete="off"
+                    className="appearance-none relative block w-full px-4 py-3 border border-gray-300 placeholder-gray-500 text-gray-900 bg-white rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+                    placeholder="Benutzername"
+                    disabled={isPending}
+                  />
+                </div>
+
+                <div>
+                  <label
+                    htmlFor="password"
+                    className="block text-sm font-medium text-gray-700 mb-1"
+                  >
+                    Passwort
+                  </label>
+                  <input
+                    id="password"
+                    name="password"
+                    type="password"
+                    required
+                    autoComplete="new-password"
+                    className="appearance-none relative block w-full px-4 py-3 border border-gray-300 placeholder-gray-500 text-gray-900 bg-white rounded-lg focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-colors"
+                    placeholder="Passwort"
+                    disabled={isPending}
+                  />
+                </div>
+              </div>
+
+              {state?.error && (
+                <div className="bg-red-50 border border-red-200 text-red-700 px-4 py-3 rounded-lg text-sm">
+                  {state.error}
+                </div>
+              )}
+
+              <button
+                type="submit"
+                disabled={isPending}
+                className="w-full flex justify-center py-3 px-4 border border-transparent text-sm font-semibold rounded-lg text-white bg-blue-600 hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed transition-all duration-200 shadow-lg hover:shadow-xl"
+              >
+                {isPending ? 'Anmeldung läuft...' : 'Anmelden'}
+              </button>
+            </form>
+          </div>
+        </div>
+      </main>
+    </div>
+  );
+}

app/page.tsx

@@ -3,32 +3,36 @@
 import { useState, useEffect } from 'react';
 import AusgabenForm from '@/components/AusgabenForm';
 import AusgabenList from '@/components/AusgabenList';
+import MonatsStatistik from '@/components/MonatsStatistik';
+import TabLayout, { SETTINGS_TAB } from '@/components/TabLayout';
+import Passkeys from '@/components/Passkeys';
 import { AusgabenEntry } from '@/types/ausgaben';
-import packageJson from '@/package.json';
+
+const MAX_ENTRIES = 15;
 
 export default function Home() {
   const [activeTab, setActiveTab] = useState(0); // 0 = Haushalt, 1 = Privat
   const [entries, setEntries] = useState<AusgabenEntry[]>([]);
   const [isLoading, setIsLoading] = useState(true);
   const [selectedEntry, setSelectedEntry] = useState<AusgabenEntry | null>(null);
-
+  const [statsRefreshKey, setStatsRefreshKey] = useState(0);
-  const version = packageJson.version;
-  const buildDate = process.env.NEXT_PUBLIC_BUILD_DATE || new Date().toLocaleDateString('de-DE', { day: '2-digit', month: '2-digit', year: 'numeric' });
 
   useEffect(() => {
-    fetchRecentEntries();
     setSelectedEntry(null); // Clear selected entry when switching tabs
+    if (activeTab === SETTINGS_TAB) return; // Einstellungen laden keine Einträge
+    fetchRecentEntries();
   }, [activeTab]);
 
   const fetchRecentEntries = async () => {
     setIsLoading(true);
     try {
-      const response = await fetch(`/api/ausgaben?limit=20&typ=${activeTab}`, {
+      const response = await fetch(`/api/ausgaben?limit=${MAX_ENTRIES}&typ=${activeTab}`, {
         cache: 'no-store',
         headers: {
           'Cache-Control': 'no-cache',
         },
       });
+      if (!response.ok) throw new Error(`HTTP ${response.status}`);
       const data = await response.json();
       if (data.success) {
         setEntries(data.data);
@@ -42,6 +46,7 @@ export default function Home() {
 
   const handleSuccess = () => {
     setSelectedEntry(null);
+    setStatsRefreshKey((k) => k + 1);
     setTimeout(() => {
       fetchRecentEntries();
     }, 100);
@@ -49,6 +54,7 @@ export default function Home() {
 
   const handleDelete = (id: number) => {
     setEntries(entries.filter(entry => entry.ID !== id));
+    setStatsRefreshKey((k) => k + 1);
   };
 
   const handleEdit = (entry: AusgabenEntry) => {
@@ -56,61 +62,34 @@ export default function Home() {
     window.scrollTo({ top: 0, behavior: 'smooth' });
   };
 
-  return (
+  if (activeTab === SETTINGS_TAB) {
-    <div className="min-h-screen bg-white py-4 px-4">
+    return (
-      <main className="max-w-7xl mx-auto border-2 border-black rounded-lg p-6 bg-[#FFFFDD]">
+      <TabLayout activeTab={activeTab} onTabChange={setActiveTab}>
-        <h1 className="text-3xl font-bold text-center mb-6">Ausgaben - Log</h1>
-        
-        {/* Tab Navigation */}
-        <div className="flex gap-2 mb-6">
-          <button
-            onClick={() => setActiveTab(0)}
-            className={`flex-1 py-3 px-6 rounded-lg font-semibold transition-colors ${
-              activeTab === 0
-                ? 'bg-[#85B7D7] text-black'
-                : 'bg-gray-200 text-gray-700 hover:bg-gray-300'
-            }`}
-          >
-            Haushalt
-          </button>
-          <button
-            onClick={() => setActiveTab(1)}
-            className={`flex-1 py-3 px-6 rounded-lg font-semibold transition-colors ${
-              activeTab === 1
-                ? 'bg-[#85B7D7] text-black'
-                : 'bg-gray-200 text-gray-700 hover:bg-gray-300'
-            }`}
-          >
-            Privat
-          </button>
-        </div>
-
         <div>
-          <h2 className="text-xl font-semibold mb-4">Eingabe</h2>
+          <h2 className="text-xl font-semibold mb-4">Einstellungen</h2>
-          <AusgabenForm onSuccess={handleSuccess} selectedEntry={selectedEntry} typ={activeTab} />
+          <Passkeys />
-          
-          <div className="mt-6 bg-white border border-black rounded-lg shadow-md p-6">
-            <h3 className="text-xl font-semibold mb-4">Letzte 20 Einträge</h3>
-            {isLoading ? (
-              <div className="text-center py-4">Lade Daten...</div>
-            ) : (
-              <AusgabenList entries={entries} onDelete={handleDelete} onEdit={handleEdit} />
-            )}
-          </div>
         </div>
+      </TabLayout>
+    );
+  }
 
-        {/* Footer */}
+  return (
-        <footer className="mt-8 flex justify-between items-center text-sm text-gray-600 px-4 ">
+    <TabLayout activeTab={activeTab} onTabChange={setActiveTab}>
-          <div>
+      <div>
-            <a href="mailto:rxf@gmx.de" className="text-blue-600 hover:underline">
+        <h2 className="text-xl font-semibold mb-4">Eingabe</h2>
-              mailto:rxf@gmx.de
+        <AusgabenForm onSuccess={handleSuccess} selectedEntry={selectedEntry} typ={activeTab} />
-            </a>
+
-          </div>
+        <MonatsStatistik typ={activeTab} refreshKey={statsRefreshKey} />
-          <div className="text-right">
+
-            Version {version} - {buildDate}
+        <div className="mt-6 bg-white border border-black rounded-lg shadow-md p-6">
-          </div>
+          <h3 className="text-xl font-semibold mb-4">Letzte {MAX_ENTRIES} Einträge</h3>
-        </footer>
+          {isLoading ? (
-      </main>
+            <div className="text-center py-4">Lade Daten...</div>
-    </div>
+          ) : (
+            <AusgabenList entries={entries} onDelete={handleDelete} onEdit={handleEdit} />
+          )}
+        </div>
+      </div>
+    </TabLayout>
   );
 }

categories.txt

@@ -0,0 +1,15 @@
+R=Restaurant
+L=Lebensmittel
+H=Haushalt
+Ku=Kultur
+Kl=Kleidung
+Dr=Drogerie
+Ap=Apotheke
+Ar=Arzt
+Re=Reise
+Au=Auto
+El=Elektronik
+Fr=Freizeit
+Ge=Getränke
+Ba=Bäckerei
+So=Sonstiges

components/AusgabenForm.tsx

@@ -1,7 +1,8 @@
 'use client';
 
-import { useState, useEffect, useCallback } from 'react';
+import { useState, useEffect, useCallback, useRef } from 'react';
-import { CreateAusgabenEntry, AusgabenEntry, ZAHLUNGSARTEN_HAUSHALT, ZAHLUNGSARTEN_PRIVAT, MonthlyStats } from '@/types/ausgaben';
+import { CreateAusgabenEntry, AusgabenEntry, ZAHLUNGSARTEN_HAUSHALT, ZAHLUNGSARTEN_PRIVAT } from '@/types/ausgaben';
+import { Category } from '@/app/api/categories/route';
 
 interface AusgabenFormProps {
   onSuccess: () => void;
@@ -18,6 +19,7 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
     WochTag: '',
     Wo: '',
     Was: '',
+    Kat: 'L',
     Wieviel: '',
     Wie: defaultZahlungsart,
     TYP: typ,
@@ -26,32 +28,12 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
   const [isSubmitting, setIsSubmitting] = useState(false);
   const [editId, setEditId] = useState<number | null>(null);
   
-  // Monthly stats
-  const [stats, setStats] = useState<MonthlyStats | null>(null);
-  const [month, setMonth] = useState('');
-  const [year, setYear] = useState('');
-  const [isLoadingStats, setIsLoadingStats] = useState(false);
-  
   // Autocomplete data
   const [autoCompleteWo, setAutoCompleteWo] = useState<string[]>([]);
   const [autoCompleteWas, setAutoCompleteWas] = useState<string[]>([]);
-
+  const [categories, setCategories] = useState<Category[]>([]);
-  const fetchStats = useCallback(async (y: string, m: string) => {
+  const [katDropdownOpen, setKatDropdownOpen] = useState(false);
-    if (!y || !m) return;
+  const katDropdownRef = useRef<HTMLDivElement>(null);
-    
-    setIsLoadingStats(true);
-    try {
-      const response = await fetch(`/api/ausgaben/stats?year=${y}&month=${m}&typ=${typ}`);
-      const data = await response.json();
-      if (data.success) {
-        setStats(data.data);
-      }
-    } catch (error) {
-      console.error('Error fetching stats:', error);
-    } finally {
-      setIsLoadingStats(false);
-    }
-  }, [typ]);
 
   const fetchAutoComplete = useCallback(async () => {
     try {
@@ -66,42 +48,30 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
     }
   }, [typ]);
 
-  // Initialize month/year on first load
-  useEffect(() => {
-    const now = new Date();
-    const currentMonth = String(now.getMonth() + 1).padStart(2, '0');
-    const currentYear = String(now.getFullYear());
-    setMonth(currentMonth);
-    setYear(currentYear);
-  }, []);
-
-  // Fetch stats when month, year, or typ changes
-  useEffect(() => {
-    if (month && year) {
-      fetchStats(year, month);
-    }
-  }, [month, year, typ, fetchStats]);
-
   // Fetch autocomplete data when typ changes
   useEffect(() => {
     fetchAutoComplete();
   }, [typ, fetchAutoComplete]);
 
-  const handleMonthChange = (newMonth: string) => {
+  // Close Kat dropdown when clicking outside
-    setMonth(newMonth);
+  useEffect(() => {
-  };
+    const handleClickOutside = (e: MouseEvent) => {
+      if (katDropdownRef.current && !katDropdownRef.current.contains(e.target as Node)) {
+        setKatDropdownOpen(false);
+      }
+    };
+    document.addEventListener('mousedown', handleClickOutside);
+    return () => document.removeEventListener('mousedown', handleClickOutside);
+  }, []);
 
-  const handleYearChange = (newYear: string) => {
+  // Fetch categories once on mount
-    setYear(newYear);
+  useEffect(() => {
-  };
+    fetch('/api/categories')
+      .then((r) => r.json())
+      .then((data) => { if (data.success) setCategories(data.data); })
+      .catch(() => {});
+  }, []);
 
-  const formatAmount = (amount: number | null) => {
-    if (amount === null || amount === undefined) return '0,00 €';
-    return new Intl.NumberFormat('de-DE', {
-      style: 'currency',
-      currency: 'EUR',
-    }).format(amount);
-  };
 
   useEffect(() => {
     if (selectedEntry) {
@@ -113,6 +83,7 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
         WochTag: selectedEntry.WochTag,
         Wo: selectedEntry.Wo,
         Was: selectedEntry.Was,
+        Kat: selectedEntry.Kat || 'L',
         Wieviel: selectedEntry.Wieviel.toString(),
         Wie: selectedEntry.Wie,
         TYP: selectedEntry.TYP,
@@ -132,6 +103,7 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
         WochTag: weekday,
         Wo: '',
         Was: '',
+        Kat: 'L',
         Wieviel: '',
         Wie: defaultZahlungsart,
         TYP: typ,
@@ -184,7 +156,8 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
         Datum: formData.Datum,
         Wo: formData.Wo,
         Was: formData.Was,
-        Wieviel: formData.Wieviel,
+        Kat: formData.Kat,
+        Wieviel: String(formData.Wieviel).replace(',', '.'),
         Wie: formData.Wie,
         TYP: formData.TYP,
       };
@@ -200,8 +173,6 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
       if (response.ok) {
         handleReset();
         onSuccess();
-        // Refresh stats after successful save
-        fetchStats(year, month);
       } else {
         alert('Fehler beim Speichern!');
       }
@@ -223,6 +194,7 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
       WochTag: weekday,
       Wo: '',
       Was: '',
+      Kat: 'L',
       Wieviel: '',
       Wie: defaultZahlungsart,
       TYP: typ,
@@ -247,6 +219,7 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
               <th className="p-2 w-32">Datum</th>
               <th className="p-2">Wo</th>
               <th className="p-2">Was</th>
+              <th className="p-2 w-12">Kat.</th>
               <th className="p-2 w-24">Wieviel</th>
               <th className="p-2 w-4"></th>
               <th className="p-2 w-38 text-left">Wie</th>
@@ -295,13 +268,45 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
                   ))}
                 </datalist>
               </td>
+              <td className="p-2 w-12">
+                <div ref={katDropdownRef} className="relative w-full">
+                  <button
+                    type="button"
+                    onClick={() => setKatDropdownOpen((o) => !o)}
+                    className="w-full px-2 py-1 text-base text-left rounded border-2 border-gray-400 bg-white focus:border-blue-500 focus:outline-none"
+                  >
+                    {formData.Kat}
+                  </button>
+                  {katDropdownOpen && (
+                    <ul className="absolute z-50 left-0 mt-1 w-48 bg-white border-2 border-gray-400 rounded shadow-lg max-h-60 overflow-y-auto text-left">
+                      {categories.map((cat) => (
+                        <li
+                          key={cat.value}
+                          className={`px-3 py-1 cursor-pointer hover:bg-blue-100 text-sm ${
+                            formData.Kat === cat.value ? 'bg-blue-50 font-semibold' : ''
+                          }`}
+                          onMouseDown={() => {
+                            setFormData({ ...formData, Kat: cat.value });
+                            setKatDropdownOpen(false);
+                          }}
+                        >
+                          {cat.value} - {cat.label}
+                        </li>
+                      ))}
+                    </ul>
+                  )}
+                </div>
+              </td>
               <td className="p-2 w-24">
                 <input
-                  type="number"
+                  type="text"
-                  step="0.01"
+                  inputMode="decimal"
                   value={formData.Wieviel}
-                  onChange={(e) => setFormData({ ...formData, Wieviel: e.target.value })}
+                  onChange={(e) => {
-                  className="w-full px-2 py-1 text-base rounded border-2 border-gray-400 bg-white focus:border-blue-500 focus:outline-none [appearance:textfield] [&::-webkit-outer-spin-button]:appearance-none [&::-webkit-inner-spin-button]:appearance-none"
+                    const val = e.target.value.replace(/[^0-9.,]/g, '').replace(',', '.');
+                    setFormData({ ...formData, Wieviel: val });
+                  }}
+                  className="w-full px-2 py-1 text-base rounded border-2 border-gray-400 bg-white focus:border-blue-500 focus:outline-none"
                   placeholder="0.00"
                   required
                 />
@@ -347,53 +352,6 @@ export default function AusgabenForm({ onSuccess, selectedEntry, typ }: Ausgaben
             Löschen
           </button>
         </div>
-
-        {/* Monatsstatistiken */}
-        <div className="mt-6 pt-4 pb-6 -mb-6 border-t border-black -mx-6 px-6 bg-[#E0E0FF]">
-          <div className="flex items-center justify-between pt-1">
-            <div className="flex gap-4 items-center">
-              <label className="font-semibold">Monat:</label>
-              <select
-                value={month}
-                onChange={(e) => handleMonthChange(e.target.value)}
-                className="border border-gray-400 rounded px-3 py-1"
-              >
-                <option value="01">Januar</option>
-                <option value="02">Februar</option>
-                <option value="03">März</option>
-                <option value="04">April</option>
-                <option value="05">Mai</option>
-                <option value="06">Juni</option>
-                <option value="07">Juli</option>
-                <option value="08">August</option>
-                <option value="09">September</option>
-                <option value="10">Oktober</option>
-                <option value="11">November</option>
-                <option value="12">Dezember</option>
-              </select>
-              
-              <label className="font-semibold">Jahr:</label>
-              <input
-                type="number"
-                value={year}
-                onChange={(e) => handleYearChange(e.target.value)}
-                className="border border-gray-400 rounded px-3 py-1 w-24"
-                min="2013"
-                max="2099"
-              />
-            </div>
-
-            <div>
-              {isLoadingStats ? (
-                <span>Lade...</span>
-              ) : stats ? (
-                <span className="font-bold text-lg">
-                  Summe: {formatAmount(stats.totalAusgaben)}
-                </span>
-              ) : null}
-            </div>
-          </div>
-        </div>
       </form>
     </div>
   );

components/AusgabenList.tsx

@@ -1,5 +1,6 @@
 'use client';
 
+import { useState } from 'react';
 import { AusgabenEntry } from '@/types/ausgaben';
 
 interface AusgabenListProps {
@@ -9,14 +10,12 @@ interface AusgabenListProps {
 }
 
 export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenListProps) {
-  const handleDelete = async (id: number) => {
+  const [confirmId, setConfirmId] = useState<number | null>(null);
-    if (!confirm('Wirklich löschen?')) return;
 
+  const handleDeleteConfirmed = async (id: number) => {
+    setConfirmId(null);
     try {
-      const response = await fetch(`/api/ausgaben/${id}`, {
+      const response = await fetch(`/api/ausgaben/${id}`, { method: 'DELETE' });
-        method: 'DELETE',
-      });
-
       if (response.ok) {
         onDelete(id);
       } else {
@@ -29,12 +28,7 @@ export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenList
   };
 
   const formatDate = (dateStr: string) => {
-    const date = new Date(dateStr);
+    return dateStr.toString().split('T')[0];
-    return date.toLocaleDateString('de-DE', {
-      day: '2-digit',
-      month: '2-digit',
-      year: 'numeric',
-    });
   };
 
   const formatAmount = (amount: number) => {
@@ -53,15 +47,16 @@ export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenList
             <th className="border-b-2 border-black p-2 w-12">Tag</th>
             <th className="border-b-2 border-black p-2 w-36">Wo</th>
             <th className="border-b-2 border-black p-2 w-48">Was</th>
+            <th className="border-b-2 border-black p-2 w-12">Kat.</th>
             <th className="border-b-2 border-black p-2 w-8">Betrag</th>
             <th className="border-b-2 border-black p-2 w-16">Wie</th>
-            <th className="border-b-2 border-black p-2 w-38">Aktion</th>
+            <th className="border-b-2 border-black p-2 w-48">Aktion</th>
           </tr>
         </thead>
         <tbody>
           {entries.length === 0 ? (
             <tr>
-              <td colSpan={7} className="text-center p-4 text-gray-500">
+              <td colSpan={8} className="text-center p-4 text-gray-500">
                 Keine Einträge vorhanden
               </td>
             </tr>
@@ -74,6 +69,7 @@ export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenList
                 <td className="border-y border-black p-2 text-center">{entry.WochTag.slice(0, 2)}</td>
                 <td className="border-y border-black p-2">{entry.Wo}</td>
                 <td className="border-y border-black p-2">{entry.Was}</td>
+                <td className="border-y border-black p-2 text-center">{entry.Kat}</td>
                 <td className="border-y border-black p-2 text-right">
                   {formatAmount(entry.Wieviel)}
                 </td>
@@ -83,10 +79,10 @@ export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenList
                     onClick={() => onEdit(entry)}
                     className="text-blue-600 hover:text-blue-800 px-3 py-1 rounded text-sm mr-2"
                   >
-                    Bearbeiten
+                    Editieren
                   </button>
                   <button
-                    onClick={() => handleDelete(entry.ID)}
+                    onClick={() => setConfirmId(entry.ID)}
                     className="text-red-600 hover:text-red-800 px-3 py-1 rounded text-sm"
                   >
                     Löschen
@@ -97,6 +93,29 @@ export default function AusgabenList({ entries, onDelete, onEdit }: AusgabenList
           )}
         </tbody>
       </table>
+
+      {/* Bestätigungs-Modal */}
+      {confirmId !== null && (
+        <div className="fixed inset-0 z-50 flex items-center justify-center bg-black/40">
+          <div className="bg-white border-2 border-black rounded-lg shadow-xl p-6 w-80">
+            <p className="text-lg font-semibold mb-6 text-center">Eintrag wirklich löschen?</p>
+            <div className="flex justify-center gap-4">
+              <button
+                onClick={() => handleDeleteConfirmed(confirmId)}
+                className="bg-red-600 hover:bg-red-700 text-white font-medium py-2 px-6 rounded-lg transition-colors"
+              >
+                Löschen
+              </button>
+              <button
+                onClick={() => setConfirmId(null)}
+                className="bg-gray-200 hover:bg-gray-300 text-black font-medium py-2 px-6 rounded-lg transition-colors"
+              >
+                Abbrechen
+              </button>
+            </div>
+          </div>
+        </div>
+      )}
     </div>
   );
 }

components/LogoutButton.tsx

@@ -0,0 +1,23 @@
+'use client';
+
+import { logout } from '@/app/login/actions';
+
+interface LogoutButtonProps {
+  className?: string;
+  children?: React.ReactNode;
+}
+
+export default function LogoutButton({ className, children }: LogoutButtonProps) {
+  const handleLogout = async () => {
+    await logout();
+  };
+
+  return (
+    <button
+      onClick={handleLogout}
+      className={className || "px-4 py-2 bg-red-600 hover:bg-red-700 text-white rounded-lg transition-colors"}
+    >
+      {children || 'Abmelden'}
+    </button>
+  );
+}

components/MonatsStatistik.tsx

@@ -0,0 +1,121 @@
+'use client';
+
+import { useState, useEffect, useCallback } from 'react';
+import { MonthlyStats } from '@/types/ausgaben';
+import { Category } from '@/app/api/categories/route';
+
+interface MonatsStatistikProps {
+  typ: number;
+  refreshKey?: number;
+}
+
+export default function MonatsStatistik({ typ, refreshKey }: MonatsStatistikProps) {
+  const [stats, setStats] = useState<MonthlyStats | null>(null);
+  const [month, setMonth] = useState('');
+  const [year, setYear] = useState('');
+  const [isLoading, setIsLoading] = useState(false);
+  const [categories, setCategories] = useState<Category[]>([]);
+
+  // Initialize month/year
+  useEffect(() => {
+    const now = new Date();
+    setMonth(String(now.getMonth() + 1).padStart(2, '0'));
+    setYear(String(now.getFullYear()));
+  }, []);
+
+  // Fetch categories once
+  useEffect(() => {
+    fetch('/api/categories')
+      .then((r) => r.json())
+      .then((data) => { if (data.success) setCategories(data.data); })
+      .catch(() => {});
+  }, []);
+
+  const fetchStats = useCallback(async (y: string, m: string) => {
+    if (!y || !m) return;
+    setIsLoading(true);
+    try {
+      const response = await fetch(`/api/ausgaben/stats?year=${y}&month=${m}&typ=${typ}`);
+      if (!response.ok) throw new Error(`HTTP ${response.status}`);
+      const data = await response.json();
+      if (data.success) setStats(data.data);
+    } catch (error) {
+      console.error('Error fetching stats:', error);
+    } finally {
+      setIsLoading(false);
+    }
+  }, [typ]);
+
+  useEffect(() => {
+    if (month && year) fetchStats(year, month);
+  }, [month, year, typ, refreshKey, fetchStats]);
+
+  const formatAmount = (amount: number) =>
+    new Intl.NumberFormat('de-DE', { style: 'currency', currency: 'EUR' }).format(amount);
+
+  const getCatLabel = (code: string) => {
+    const cat = categories.find((c) => c.value === code);
+    return cat ? `${cat.label}` : code;
+  };
+
+  return (
+    <div className="mt-4 bg-[#E0E0FF] border border-black rounded-lg shadow-md p-4">
+      {/* Zeile 1: Monat/Jahr + Gesamtsumme */}
+      <div className="flex items-center justify-between flex-wrap gap-2">
+        <div className="flex gap-4 items-center">
+          <label className="font-semibold">Monat:</label>
+          <select
+            value={month}
+            onChange={(e) => setMonth(e.target.value)}
+            className="border border-gray-400 rounded px-3 py-1"
+          >
+            <option value="01">Januar</option>
+            <option value="02">Februar</option>
+            <option value="03">März</option>
+            <option value="04">April</option>
+            <option value="05">Mai</option>
+            <option value="06">Juni</option>
+            <option value="07">Juli</option>
+            <option value="08">August</option>
+            <option value="09">September</option>
+            <option value="10">Oktober</option>
+            <option value="11">November</option>
+            <option value="12">Dezember</option>
+          </select>
+
+          <label className="font-semibold">Jahr:</label>
+          <input
+            type="number"
+            value={year}
+            onChange={(e) => setYear(e.target.value)}
+            className="border border-gray-400 rounded px-3 py-1 w-24"
+            min="2013"
+            max="2099"
+          />
+        </div>
+
+        <div>
+          {isLoading ? (
+            <span>Lade...</span>
+          ) : stats ? (
+            <span className="font-bold text-lg">
+              Summe: {formatAmount(stats.totalAusgaben)}
+            </span>
+          ) : null}
+        </div>
+      </div>
+
+      {/* Zeile 2+: Kategorien */}
+      {!isLoading && stats?.katStats && Object.keys(stats.katStats).length > 0 && (
+        <div className="mt-3 pt-3 border-t border-gray-400 flex flex-wrap gap-x-6 gap-y-1">
+          {Object.entries(stats.katStats).map(([code, total]) => (
+            <div key={code} className="flex gap-2 text-sm">
+              <span className="font-medium">{getCatLabel(code)}:</span>
+              <span>{formatAmount(total)}</span>
+            </div>
+          ))}
+        </div>
+      )}
+    </div>
+  );
+}

components/Passkeys.tsx

@@ -0,0 +1,151 @@
+'use client';
+
+import { useEffect, useState } from 'react';
+import { startRegistration } from '@simplewebauthn/browser';
+
+interface Passkey {
+  credentialId: string;
+  label: string;
+  createdAt: string | null;
+  lastUsedAt: string | null;
+}
+
+function formatDate(iso: string | null): string {
+  if (!iso) return '—';
+  const d = new Date(iso);
+  if (isNaN(d.getTime())) return '—';
+  return d.toLocaleDateString('de-DE', { day: '2-digit', month: '2-digit', year: 'numeric' });
+}
+
+export default function Passkeys() {
+  const [passkeys, setPasskeys] = useState<Passkey[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [busy, setBusy] = useState(false);
+  const [error, setError] = useState<string | null>(null);
+  const [label, setLabel] = useState('');
+
+  function load() {
+    return fetch('/api/passkey')
+      .then((r) => (r.ok ? r.json() : Promise.reject(new Error())))
+      .then((data) => setPasskeys(data.passkeys ?? []))
+      .catch(() => setError('Passkeys konnten nicht geladen werden.'))
+      .finally(() => setLoading(false));
+  }
+
+  useEffect(() => {
+    load();
+  }, []);
+
+  async function handleRegister() {
+    setError(null);
+    setBusy(true);
+    try {
+      const optRes = await fetch('/api/passkey/register');
+      if (!optRes.ok) throw new Error('Optionen konnten nicht geladen werden.');
+      const optionsJSON = await optRes.json();
+
+      const response = await startRegistration({ optionsJSON });
+
+      const verifyRes = await fetch('/api/passkey/register', {
+        method: 'POST',
+        headers: { 'Content-Type': 'application/json' },
+        body: JSON.stringify({ response, label }),
+      });
+      if (!verifyRes.ok) {
+        const data = await verifyRes.json().catch(() => null);
+        throw new Error(data?.error ?? 'Passkey konnte nicht registriert werden.');
+      }
+      setLabel('');
+      await load();
+    } catch (err) {
+      if (err instanceof Error && err.name === 'NotAllowedError') {
+        setError(null); // Abbruch durch Nutzer
+      } else {
+        setError(err instanceof Error ? err.message : 'Passkey konnte nicht registriert werden.');
+      }
+    } finally {
+      setBusy(false);
+    }
+  }
+
+  async function handleDelete(credentialId: string) {
+    if (!confirm('Diesen Passkey wirklich entfernen?')) return;
+    setError(null);
+    try {
+      const res = await fetch(`/api/passkey?id=${encodeURIComponent(credentialId)}`, {
+        method: 'DELETE',
+      });
+      if (!res.ok) throw new Error();
+      await load();
+    } catch {
+      setError('Passkey konnte nicht entfernt werden.');
+    }
+  }
+
+  return (
+    <div className="max-w-md">
+      <h3 className="text-sm font-semibold text-gray-900 mb-1">Passkeys</h3>
+      <p className="text-xs text-gray-500 mb-3">
+        Melde dich künftig per Fingerabdruck, Gesichtserkennung oder Geräte-PIN an. Das Passwort
+        bleibt als Alternative bestehen.
+      </p>
+
+      {loading ? (
+        <p className="text-sm text-gray-500">Lädt…</p>
+      ) : passkeys.length === 0 ? (
+        <p className="text-sm text-gray-500 mb-3">Noch keine Passkeys registriert.</p>
+      ) : (
+        <ul className="space-y-2 mb-4">
+          {passkeys.map((pk) => (
+            <li
+              key={pk.credentialId}
+              className="flex items-center justify-between gap-3 border-2 border-gray-300 rounded-lg px-3 py-2 bg-white"
+            >
+              <div className="min-w-0">
+                <div className="text-sm font-medium text-gray-900 truncate">{pk.label}</div>
+                <div className="text-xs text-gray-500">
+                  Erstellt {formatDate(pk.createdAt)} · Zuletzt {formatDate(pk.lastUsedAt)}
+                </div>
+              </div>
+              <button
+                onClick={() => handleDelete(pk.credentialId)}
+                className="text-xs px-2 py-1 text-red-600 hover:text-red-800 shrink-0"
+              >
+                Entfernen
+              </button>
+            </li>
+          ))}
+        </ul>
+      )}
+
+      <div className="flex items-end gap-2">
+        <div className="flex-1">
+          <label className="block text-xs font-medium text-gray-700 mb-1">
+            Bezeichnung (optional)
+          </label>
+          <input
+            type="text"
+            value={label}
+            onChange={(e) => setLabel(e.target.value)}
+            placeholder="z. B. iPhone"
+            maxLength={80}
+            className="w-full px-3 py-2 border-2 border-gray-400 rounded-lg bg-white text-gray-900 text-sm focus:border-blue-500 focus:outline-none"
+          />
+        </div>
+        <button
+          onClick={handleRegister}
+          disabled={busy}
+          className="px-4 py-2 bg-[#85B7D7] hover:bg-[#6a9fc5] text-black font-medium rounded-lg transition-colors disabled:opacity-50 text-sm shrink-0"
+        >
+          {busy ? 'Läuft…' : 'Passkey hinzufügen'}
+        </button>
+      </div>
+
+      {error && (
+        <div className="mt-3 bg-red-50 border border-red-300 text-red-700 px-3 py-2 rounded-lg text-sm">
+          {error}
+        </div>
+      )}
+    </div>
+  );
+}

components/TabLayout.tsx

@@ -0,0 +1,86 @@
+'use client';
+
+import { ReactNode } from 'react';
+import LogoutButton from '@/components/LogoutButton';
+import packageJson from '@/package.json';
+
+interface Tab {
+  label: string;
+  index: number;
+}
+
+/** Tab-Index der Einstellungen (0/1 sind die Ausgaben-Typen Haushalt/Privat). */
+export const SETTINGS_TAB = 2;
+
+interface TabLayoutProps {
+  children: ReactNode;
+  activeTab: number;
+  onTabChange: (index: number) => void;
+}
+
+const TABS: Tab[] = [
+  { label: 'Haushalt', index: 0 },
+  { label: 'Privat', index: 1 },
+  { label: 'Einstellungen', index: SETTINGS_TAB },
+];
+
+export default function TabLayout({ children, activeTab, onTabChange }: TabLayoutProps) {
+  const version = packageJson.version;
+  const buildDate =
+    process.env.NEXT_PUBLIC_BUILD_DATE ||
+    new Date().toLocaleDateString('de-DE', { day: '2-digit', month: '2-digit', year: 'numeric' });
+
+  return (
+    <div className="min-h-screen py-8 px-4">
+      {/* Outer wrapper with border */}
+      <div className="max-w-316 mx-auto border-2 border-black rounded-xl bg-gray-200 p-6">
+
+        {/* Page title */}
+        <h1 className="text-4xl font-bold text-center mb-6 tracking-tight">Ausgaben - Log</h1>
+
+        {/* Inner content */}
+        <div className="max-w-6xl mx-auto">
+
+          {/* Tab bar */}
+          <div className="flex justify-between items-end">
+            <div className="flex">
+              {TABS.map(tab => {
+                const isActive = activeTab === tab.index;
+                return (
+                  <button
+                    key={tab.index}
+                    onClick={() => onTabChange(tab.index)}
+                    className="px-6 py-2 text-sm font-semibold border-t-2 border-l-2 border-r-2 rounded-tl-lg rounded-tr-lg mr-1 transition-colors"
+                    style={
+                      isActive
+                        ? { backgroundColor: '#FFFFDD', color: '#000000', borderColor: '#000000', borderBottom: '2px solid #FFFFDD', marginBottom: '-2px', position: 'relative', zIndex: 10 }
+                        : { backgroundColor: '#85B7D7', color: '#374151', borderColor: '#000000' }
+                    }
+                  >
+                    {tab.label}
+                  </button>
+                );
+              })}
+            </div>
+            <div className="pb-1">
+              <LogoutButton className="px-4 py-2 bg-red-600 hover:bg-red-700 text-white text-sm rounded-lg shadow-md" />
+            </div>
+          </div>
+
+          {/* Content panel */}
+          <main className="border-2 border-black rounded-b-lg rounded-tr-lg p-6 bg-[#FFFFDD]">
+            {children}
+          </main>
+
+          <footer className="mt-8 flex justify-between items-center text-sm text-gray-600 px-4">
+            <a href="mailto:rxf@gmx.de" className="hover:underline">
+              mailto:rxf@gmx.de
+            </a>
+            <div>Version {version} - {buildDate}</div>
+          </footer>
+
+        </div>
+      </div>
+    </div>
+  );
+}

create_table.sql

@@ -22,3 +22,20 @@ ALTER TABLE `Ausgaben` ADD INDEX IF NOT EXISTS `idx_typ` (`TYP`);
 
 -- Remove WochTag column if it exists (no longer stored in DB, calculated from Datum)
 -- ALTER TABLE `Ausgaben` DROP COLUMN IF EXISTS `WochTag`;
+
+-- WebAuthn-Passkeys je Benutzer (Benutzer stammen aus AUTH_USERS).
+-- Die Anwendung legt diese Tabelle beim ersten Zugriff selbst an (lib/passkeys.ts),
+-- sofern der DB-Benutzer CREATE-Rechte hat.
+-- Der Name ist bewusst app-spezifisch: Auf dem Server teilen sich mehrere Apps
+-- die Datenbank RXF, werte-next belegt dort bereits die Tabelle `passkeys`.
+CREATE TABLE IF NOT EXISTS `ausgaben_passkeys` (
+  `credential_id` VARCHAR(255) CHARACTER SET ascii COLLATE ascii_bin NOT NULL PRIMARY KEY,
+  `username` VARCHAR(64) NOT NULL,
+  `public_key` VARBINARY(1024) NOT NULL,
+  `counter` INT UNSIGNED NOT NULL DEFAULT 0,
+  `transports` VARCHAR(255) NOT NULL DEFAULT '[]',
+  `label` VARCHAR(80) NOT NULL DEFAULT '',
+  `created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+  `last_used_at` DATETIME NULL,
+  INDEX `idx_ausgaben_passkeys_username` (`username`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;

deploy.sh

@@ -15,34 +15,39 @@ FULL_IMAGE="${REGISTRY}/${IMAGE_NAME}:${TAG}"
 BUILD_DATE=$(date +%d.%m.%Y)
 
 echo "=========================================="
-echo "Ausgaben-Next Deploy Script"
+echo "ausgaben-next Deploy Script"
 echo "=========================================="
 echo "Registry: ${REGISTRY}"
 echo "Image: ${IMAGE_NAME}"
 echo "Tag: ${TAG}"
 echo "Build-Datum: ${BUILD_DATE}"
+
 echo "=========================================="
 echo ""
 
-# 1. Docker Image bauen
+# 1. Login zur Registry (falls noch nicht eingeloggt)
-echo ">>> Baue Docker Image..."
-docker build \
-  --build-arg BUILD_DATE="${BUILD_DATE}" \
-  -t "${IMAGE_NAME}:${TAG}" \
-  -t "${FULL_IMAGE}" \
-  .
-
-echo ">>> Build erfolgreich!"
-echo ""
-
-# 2. Login zur Registry (falls noch nicht eingeloggt)
 echo ">>> Login zu ${REGISTRY}..."
 docker login "${REGISTRY}"
 echo ""
 
-# 3. Image pushen
+# 2. Multiplatform Builder einrichten (docker-container driver erforderlich)
-echo ">>> Pushe Image zu ${REGISTRY}..."
+echo ">>> Richte Multiplatform Builder ein..."
-docker push "${FULL_IMAGE}"
+if ! docker buildx inspect multiplatform-builder &>/dev/null; then
+  docker buildx create --name multiplatform-builder --driver docker-container --bootstrap
+fi
+docker buildx use multiplatform-builder
+echo ""
+
+# 3. Docker Image bauen und pushen (Multiplatform)
+echo ">>> Baue Multiplatform Docker Image und pushe zu Registry..."
+docker buildx build \
+  --platform linux/amd64,linux/arm64 \
+  --build-arg BUILD_DATE="${BUILD_DATE}" \
+  -t "${FULL_IMAGE}" \
+  --push \
+  .
+
+echo ">>> Build und Push erfolgreich!"
 
 echo ""
 echo "=========================================="

docker-compose.local.yml

@@ -15,3 +15,11 @@ services:
       - DB_USER=${DB_USER}
       - DB_PASS=${DB_PASS}
       - DB_NAME=${DB_NAME}
+      - AUTH_USERS=${AUTH_USERS}
+      - AUTH_SECRET=${AUTH_SECRET}
+      # Passkeys (WebAuthn) — WebAuthn braucht HTTPS oder localhost.
+      # App-eigene Namen (AUSGABEN_RP_*) wie in docker-compose.prod.yml, damit
+      # eine geteilte .env mit anderen Apps nicht kollidiert.
+      - RP_ID=${AUSGABEN_RP_ID:-localhost}
+      - RP_ORIGIN=${AUSGABEN_RP_ORIGIN:-http://localhost:3005}
+      - RP_NAME=${AUSGABEN_RP_NAME:-Ausgaben-Log}

docker-compose.prod.yml

@@ -12,6 +12,15 @@ services:
       - DB_USER=${DB_USER}
       - DB_PASS=${DB_PASS}
       - DB_NAME=${DB_NAME}
+      - AUTH_USERS=${AUTH_USERS}
+      - AUTH_SECRET=${AUTH_SECRET}
+      # Passkeys (WebAuthn): Host bzw. volle URL der Anwendung.
+      # Achtung: Die .env auf dem Server wird von mehreren Apps im selben Stack
+      # geteilt und belegt RP_ID/RP_ORIGIN bereits für werte-next. Deshalb hier
+      # die app-eigenen Namen AUSGABEN_RP_* verwenden.
+      - RP_ID=${AUSGABEN_RP_ID:-ausgaben.fuerst-stuttgart.de}
+      - RP_ORIGIN=${AUSGABEN_RP_ORIGIN:-https://ausgaben.fuerst-stuttgart.de}
+      - RP_NAME=${AUSGABEN_RP_NAME:-Ausgaben-Log}
     labels:
       - traefik.enable=true
       - traefik.http.routers.ausgaben.entrypoints=http

eslint.config.mjs

@@ -1,16 +1,18 @@
-import { dirname } from "path";
+import { defineConfig, globalIgnores } from "eslint/config";
-import { fileURLToPath } from "url";
+import nextVitals from "eslint-config-next/core-web-vitals";
-import { FlatCompat } from "@eslint/eslintrc";
+import nextTs from "eslint-config-next/typescript";
 
-const __filename = fileURLToPath(import.meta.url);
+const eslintConfig = defineConfig([
-const __dirname = dirname(__filename);
+  ...nextVitals,
-
+  ...nextTs,
-const compat = new FlatCompat({
+  // Override default ignores of eslint-config-next.
-  baseDirectory: __dirname,
+  globalIgnores([
-});
+    // Default ignores of eslint-config-next:
-
+    ".next/**",
-const eslintConfig = [
+    "out/**",
-  ...compat.extends("next/core-web-vitals", "next/typescript"),
+    "build/**",
-];
+    "next-env.d.ts",
+  ]),
+]);
 
 export default eslintConfig;

lib/auth.ts

@@ -0,0 +1,39 @@
+import bcrypt from 'bcryptjs';
+
+export interface User {
+  username: string;
+  password: string;
+}
+
+export function getUsers(): User[] {
+  const usersString = process.env.AUTH_USERS || '';
+  if (!usersString) {
+    console.warn('AUTH_USERS not configured in .env');
+    return [];
+  }
+  return usersString
+    .split(',')
+    .map((userPair) => {
+      const [username, password] = userPair.trim().split(':');
+      return { username: username?.trim(), password: password?.trim() };
+    })
+    .filter((user) => user.username && user.password);
+}
+
+export async function verifyCredentials(username: string, password: string): Promise<boolean> {
+  const users = getUsers();
+  const user = users.find(u => u.username === username);
+  if (!user) {
+    return false;
+  }
+  return bcrypt.compare(password, user.password);
+}
+
+/** Prüft, ob der Benutzername (noch) in AUTH_USERS hinterlegt ist. */
+export function isKnownUser(username: string): boolean {
+  return getUsers().some(u => u.username === username);
+}
+
+export function isAuthEnabled(): boolean {
+  return !!process.env.AUTH_USERS;
+}

lib/db.ts

@@ -7,7 +7,7 @@ export function getDbPool() {
     pool = mysql.createPool({
       host: process.env.DB_HOST || 'localhost',
       user: process.env.DB_USER || 'root',
-      password: process.env.DB_PASSWORD || '',
+      password: process.env.DB_PASS || process.env.DB_PASSWORD || '',
       database: process.env.DB_NAME || 'RXF',
       waitForConnections: true,
       connectionLimit: 10,

lib/passkeys.ts

@@ -0,0 +1,146 @@
+import { getDbPool } from './db';
+import type { RowDataPacket, ResultSetHeader } from 'mysql2/promise';
+
+// Eigene Tabelle je Anwendung: Auf dem Server teilen sich mehrere Apps die
+// Datenbank RXF. werte-next verwendet `passkeys` — würde diese App denselben
+// Namen nutzen, sähe sie fremde Passkeys, könnte sie löschen und über
+// excludeCredentials die eigene Registrierung blockieren.
+const TABLE = 'ausgaben_passkeys';
+
+/** Ein gespeicherter Passkey (WebAuthn-Credential), einem Benutzer zugeordnet. */
+export interface PasskeyRecord {
+  credentialId: string; // base64url
+  username: string;
+  publicKey: Uint8Array<ArrayBuffer>;
+  counter: number;
+  transports: string[];
+  label: string;
+  createdAt: Date;
+  lastUsedAt: Date | null;
+}
+
+interface PasskeyRow extends RowDataPacket {
+  credential_id: string;
+  username: string;
+  public_key: Buffer;
+  counter: number;
+  transports: string;
+  label: string;
+  created_at: Date;
+  last_used_at: Date | null;
+}
+
+let schemaReady: Promise<void> | null = null;
+
+/**
+ * Legt die Passkey-Tabelle beim ersten Zugriff an (einmal pro Prozess).
+ * Das Schema steht zusätzlich in create_table.sql.
+ */
+function ensureSchema(): Promise<void> {
+  if (!schemaReady) {
+    schemaReady = getDbPool()
+      .query(
+        `CREATE TABLE IF NOT EXISTS ${TABLE} (
+          credential_id VARCHAR(255) CHARACTER SET ascii COLLATE ascii_bin NOT NULL PRIMARY KEY,
+          username VARCHAR(64) NOT NULL,
+          public_key VARBINARY(1024) NOT NULL,
+          counter INT UNSIGNED NOT NULL DEFAULT 0,
+          transports VARCHAR(255) NOT NULL DEFAULT '[]',
+          label VARCHAR(80) NOT NULL DEFAULT '',
+          created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+          last_used_at DATETIME NULL,
+          INDEX idx_ausgaben_passkeys_username (username)
+        ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci`
+      )
+      .then(() => undefined)
+      .catch((error) => {
+        schemaReady = null; // nächster Aufruf darf es erneut versuchen
+        throw error;
+      });
+  }
+  return schemaReady;
+}
+
+function fromRow(row: PasskeyRow): PasskeyRecord {
+  let transports: string[] = [];
+  try {
+    const parsed = JSON.parse(row.transports);
+    if (Array.isArray(parsed)) transports = parsed;
+  } catch {
+    /* fehlerhafte transports ignorieren */
+  }
+  return {
+    credentialId: row.credential_id,
+    username: row.username,
+    // Uint8Array.from kopiert in einen frischen ArrayBuffer (passt zum von
+    // @simplewebauthn erwarteten Uint8Array<ArrayBuffer>).
+    publicKey: Uint8Array.from(row.public_key),
+    counter: row.counter,
+    transports,
+    label: row.label,
+    createdAt: row.created_at,
+    lastUsedAt: row.last_used_at,
+  };
+}
+
+/** Alle Passkeys eines Benutzers, neueste zuerst. */
+export async function listPasskeys(username: string): Promise<PasskeyRecord[]> {
+  await ensureSchema();
+  const [rows] = await getDbPool().execute<PasskeyRow[]>(
+    `SELECT * FROM ${TABLE} WHERE username = ? ORDER BY created_at DESC`,
+    [username]
+  );
+  return rows.map(fromRow);
+}
+
+/** Passkey anhand der Credential-ID — benutzerübergreifend, für die Anmeldung. */
+export async function getPasskey(credentialId: string): Promise<PasskeyRecord | undefined> {
+  await ensureSchema();
+  const [rows] = await getDbPool().execute<PasskeyRow[]>(
+    `SELECT * FROM ${TABLE} WHERE credential_id = ?`,
+    [credentialId]
+  );
+  return rows.length > 0 ? fromRow(rows[0]) : undefined;
+}
+
+export async function insertPasskey(record: {
+  credentialId: string;
+  username: string;
+  publicKey: Uint8Array;
+  counter: number;
+  transports: string[];
+  label: string;
+}): Promise<void> {
+  await ensureSchema();
+  await getDbPool().execute(
+    `INSERT INTO ${TABLE} (credential_id, username, public_key, counter, transports, label)
+     VALUES (?, ?, ?, ?, ?, ?)`,
+    [
+      record.credentialId,
+      record.username,
+      Buffer.from(record.publicKey),
+      record.counter,
+      JSON.stringify(record.transports ?? []),
+      record.label,
+    ]
+  );
+}
+
+/** Aktualisiert Counter und last_used_at nach erfolgreicher Anmeldung (Replay-Schutz). */
+export async function updatePasskeyUsage(credentialId: string, counter: number): Promise<void> {
+  await ensureSchema();
+  await getDbPool().execute(
+    `UPDATE ${TABLE} SET counter = ?, last_used_at = NOW() WHERE credential_id = ?`,
+    [counter, credentialId]
+  );
+}
+
+/** Löscht einen Passkey — nur wenn er dem angegebenen Benutzer gehört. */
+export async function deletePasskey(credentialId: string, username: string): Promise<boolean> {
+  await ensureSchema();
+  const [result] = await getDbPool().execute<ResultSetHeader>(
+    `DELETE FROM ${TABLE} WHERE credential_id = ? AND username = ?`,
+    [credentialId, username]
+  );
+  return result.affectedRows > 0;
+}

lib/session.ts

@@ -0,0 +1,102 @@
+import { cookies } from 'next/headers';
+import { SignJWT, jwtVerify } from 'jose';
+
+const SESSION_COOKIE_NAME = 'auth_session';
+const SESSION_DURATION = 7 * 24 * 60 * 60 * 1000; // 7 days
+
+const secretKey = process.env.AUTH_SECRET || 'default-secret-change-in-production';
+const key = new TextEncoder().encode(secretKey);
+
+export interface SessionData {
+  username: string;
+  isAuthenticated: boolean;
+  expiresAt: number;
+}
+
+/**
+ * Encrypt session data to JWT
+ */
+async function encrypt(payload: SessionData): Promise<string> {
+  return await new SignJWT(payload as any)
+    .setProtectedHeader({ alg: 'HS256' })
+    .setIssuedAt()
+    .setExpirationTime(new Date(payload.expiresAt))
+    .sign(key);
+}
+
+/**
+ * Decrypt JWT to session data
+ */
+async function decrypt(token: string): Promise<SessionData | null> {
+  try {
+    const { payload } = await jwtVerify(token, key, {
+      algorithms: ['HS256'],
+    });
+    return {
+      username: payload.username as string,
+      isAuthenticated: payload.isAuthenticated as boolean,
+      expiresAt: payload.expiresAt as number,
+    };
+  } catch (error) {
+    return null;
+  }
+}
+
+/**
+ * Create a new session
+ */
+export async function createSession(username: string): Promise<void> {
+  const expiresAt = Date.now() + SESSION_DURATION;
+  const session: SessionData = {
+    username,
+    isAuthenticated: true,
+    expiresAt,
+  };
+
+  const encryptedSession = await encrypt(session);
+  const cookieStore = await cookies();
+  
+  cookieStore.set(SESSION_COOKIE_NAME, encryptedSession, {
+    httpOnly: true,
+    secure: process.env.NODE_ENV === 'production',
+    expires: expiresAt,
+    sameSite: 'lax',
+    path: '/',
+  });
+}
+
+/**
+ * Get current session
+ */
+export async function getSession(): Promise<SessionData | null> {
+  const cookieStore = await cookies();
+  const cookie = cookieStore.get(SESSION_COOKIE_NAME);
+
+  if (!cookie?.value) {
+    return null;
+  }
+
+  const session = await decrypt(cookie.value);
+
+  if (!session || session.expiresAt < Date.now()) {
+    return null;
+  }
+
+  return session;
+}
+
+/**
+ * Delete session (logout)
+ */
+export async function deleteSession(): Promise<void> {
+  const cookieStore = await cookies();
+  cookieStore.delete(SESSION_COOKIE_NAME);
+}
+
+/**
+ * Verify if user is authenticated
+ */
+export async function isAuthenticated(): Promise<boolean> {
+  const session = await getSession();
+  return session?.isAuthenticated ?? false;
+}

lib/webauthn.ts

@@ -0,0 +1,176 @@
+import { cookies } from 'next/headers';
+import {
+  generateRegistrationOptions,
+  verifyRegistrationResponse,
+  generateAuthenticationOptions,
+  verifyAuthenticationResponse,
+} from '@simplewebauthn/server';
+import type {
+  RegistrationResponseJSON,
+  AuthenticationResponseJSON,
+  AuthenticatorTransportFuture,
+} from '@simplewebauthn/server';
+import { isKnownUser } from './auth';
+import { listPasskeys, getPasskey, insertPasskey, updatePasskeyUsage } from './passkeys';
+
+const REG_CHALLENGE_COOKIE = 'ausgaben_pk_reg';
+const AUTH_CHALLENGE_COOKIE = 'ausgaben_pk_auth';
+const CHALLENGE_TTL_S = 300; // 5 Minuten
+
+/**
+ * Relying-Party-Konfiguration. In Produktion über Env-Vars gesetzt
+ * (RP_ID = Host, RP_ORIGIN = volle URL). Default-Werte für lokale Entwicklung.
+ */
+export function getRpConfig() {
+  const rpID = process.env.RP_ID || 'localhost';
+  const rpName = process.env.RP_NAME || 'Ausgaben-Log';
+  const origin = process.env.RP_ORIGIN || 'http://localhost:3005';
+  return { rpID, rpName, origin };
+}
+
+// --- Challenge-Cookie (kurzlebig, httpOnly) ------------------------------
+
+async function setChallengeCookie(name: string, challenge: string): Promise<void> {
+  const cookieStore = await cookies();
+  cookieStore.set(name, challenge, {
+    httpOnly: true,
+    secure: process.env.NODE_ENV === 'production',
+    sameSite: 'lax',
+    path: '/',
+    maxAge: CHALLENGE_TTL_S,
+  });
+}
+
+async function takeChallengeCookie(name: string): Promise<string | null> {
+  const cookieStore = await cookies();
+  const value = cookieStore.get(name)?.value ?? null;
+  cookieStore.delete(name);
+  return value;
+}
+
+// --- Registrierung (Enrollment, Session erforderlich) --------------------
+
+export async function buildRegistrationOptions(username: string) {
+  const { rpID, rpName } = getRpConfig();
+  const existing = await listPasskeys(username);
+
+  const options = await generateRegistrationOptions({
+    rpName,
+    rpID,
+    userName: username,
+    userDisplayName: username,
+    userID: new TextEncoder().encode(username),
+    attestationType: 'none',
+    excludeCredentials: existing.map((pk) => ({
+      id: pk.credentialId,
+      transports: pk.transports as AuthenticatorTransportFuture[],
+    })),
+    authenticatorSelection: {
+      residentKey: 'preferred',
+      userVerification: 'preferred',
+    },
+  });
+
+  await setChallengeCookie(REG_CHALLENGE_COOKIE, options.challenge);
+  return options;
+}
+
+/** Verifiziert die Registrierungs-Antwort und speichert den Passkey für den Benutzer. */
+export async function finishRegistration(
+  username: string,
+  response: RegistrationResponseJSON,
+  label: string
+): Promise<{ ok: true } | { ok: false; error: string }> {
+  const expectedChallenge = await takeChallengeCookie(REG_CHALLENGE_COOKIE);
+  if (!expectedChallenge) return { ok: false, error: 'Challenge abgelaufen. Bitte erneut versuchen.' };
+
+  const { rpID, origin } = getRpConfig();
+  let verification;
+  try {
+    verification = await verifyRegistrationResponse({
+      response,
+      expectedChallenge,
+      expectedOrigin: origin,
+      expectedRPID: rpID,
+      requireUserVerification: false,
+    });
+  } catch {
+    return { ok: false, error: 'Passkey konnte nicht verifiziert werden.' };
+  }
+
+  if (!verification.verified || !verification.registrationInfo) {
+    return { ok: false, error: 'Passkey-Registrierung fehlgeschlagen.' };
+  }
+
+  const { credential } = verification.registrationInfo;
+  if (await getPasskey(credential.id)) {
+    return { ok: false, error: 'Dieser Passkey ist bereits registriert.' };
+  }
+
+  await insertPasskey({
+    credentialId: credential.id,
+    username,
+    publicKey: credential.publicKey,
+    counter: credential.counter,
+    transports: credential.transports ?? [],
+    label: label.trim().slice(0, 80) || 'Passkey',
+  });
+  return { ok: true };
+}
+
+// --- Anmeldung (öffentlich, keine Session) -------------------------------
+
+export async function buildAuthenticationOptions() {
+  const { rpID } = getRpConfig();
+  const options = await generateAuthenticationOptions({
+    rpID,
+    userVerification: 'preferred',
+    // allowCredentials leer lassen → erlaubt Discoverable Credentials / Browser-Auswahl.
+  });
+  await setChallengeCookie(AUTH_CHALLENGE_COOKIE, options.challenge);
+  return options;
+}
+
+/**
+ * Verifiziert die Anmelde-Antwort gegen einen gespeicherten Passkey und liefert
+ * den zugehörigen Benutzer zurück.
+ */
+export async function finishAuthentication(
+  response: AuthenticationResponseJSON
+): Promise<{ ok: true; username: string } | { ok: false; error: string }> {
+  const expectedChallenge = await takeChallengeCookie(AUTH_CHALLENGE_COOKIE);
+  if (!expectedChallenge) return { ok: false, error: 'Challenge abgelaufen. Bitte erneut versuchen.' };
+
+  const passkey = await getPasskey(response.id);
+  if (!passkey) return { ok: false, error: 'Unbekannter Passkey.' };
+
+  // Benutzer könnte inzwischen aus AUTH_USERS entfernt worden sein.
+  if (!isKnownUser(passkey.username)) {
+    return { ok: false, error: 'Benutzer existiert nicht mehr.' };
+  }
+
+  const { rpID, origin } = getRpConfig();
+  let verification;
+  try {
+    verification = await verifyAuthenticationResponse({
+      response,
+      expectedChallenge,
+      expectedOrigin: origin,
+      expectedRPID: rpID,
+      requireUserVerification: false,
+      credential: {
+        id: passkey.credentialId,
+        publicKey: passkey.publicKey,
+        counter: passkey.counter,
+        transports: passkey.transports as AuthenticatorTransportFuture[],
+      },
+    });
+  } catch {
+    return { ok: false, error: 'Anmeldung mit Passkey fehlgeschlagen.' };
+  }
+
+  if (!verification.verified) return { ok: false, error: 'Anmeldung mit Passkey fehlgeschlagen.' };
+
+  await updatePasskeyUsage(passkey.credentialId, verification.authenticationInfo.newCounter);
+  return { ok: true, username: passkey.username };
+}

next.config.ts

@@ -2,6 +2,20 @@ import type { NextConfig } from "next";
 
 const nextConfig: NextConfig = {
   output: 'standalone',
+  async headers() {
+    return [
+      {
+        source: '/(.*)',
+        headers: [
+          { key: 'X-Frame-Options', value: 'DENY' },
+          { key: 'X-Content-Type-Options', value: 'nosniff' },
+          { key: 'Referrer-Policy', value: 'strict-origin-when-cross-origin' },
+          { key: 'Strict-Transport-Security', value: 'max-age=63072000; includeSubDomains; preload' },
+          { key: 'Permissions-Policy', value: 'camera=(), microphone=(), geolocation=()' },
+        ],
+      },
+    ];
+  },
 };
 
 export default nextConfig;

package-lock.json

@@ -1,13 +1,17 @@
 {
   "name": "ausgaben_next",
-  "version": "1.0.0",
+  "version": "2.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "ausgaben_next",
-      "version": "1.0.0",
+      "version": "2.1.1",
       "dependencies": {
+        "@simplewebauthn/browser": "^13.3.0",
+        "@simplewebauthn/server": "^13.3.2",
+        "bcryptjs": "^3.0.3",
+        "jose": "^6.1.3",
         "mysql2": "^3.17.4",
         "next": "16.1.6",
         "react": "19.2.3",
@@ -15,6 +19,7 @@
       },
       "devDependencies": {
         "@tailwindcss/postcss": "^4",
+        "@types/bcryptjs": "^2.4.6",
         "@types/node": "^20",
         "@types/react": "^19",
         "@types/react-dom": "^19",
@@ -68,6 +73,7 @@
       "integrity": "sha512-CGOfOJqWjg2qW/Mb6zNsDm+u5vFQ8DxXfbM09z69p5Z6+mE1ikP2jUXw+j42Pf1XTYED2Rni5f95npYeuwMDQA==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "dependencies": {
         "@babel/code-frame": "^7.29.0",
         "@babel/generator": "^7.29.0",
@@ -454,6 +460,12 @@
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       "resolved": "https://registry.npmjs.org/reflect.getprototypeof/-/reflect.getprototypeof-1.0.10.tgz",
@@ -6259,6 +6542,7 @@
       "integrity": "sha512-5gTmgEY/sqK6gFXLIsQNH19lWb4ebPDLA4SdLP7dsWkIXHWlG66oPuVvXSGFPppYZz8ZDZq0dYYrbHfBCVUb1Q==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "engines": {
         "node": ">=12"
       },
@@ -6324,6 +6608,24 @@
       "integrity": "sha512-oJFu94HQb+KVduSUQL7wnpmqnfmLsOA/nAh6b6EH0wCEoK0/mPeXU6c3wKDV83MkOuHPRHtSXKKU99IBazS/2w==",
       "license": "0BSD"
     },
+    "node_modules/tsyringe": {
+      "version": "4.10.0",
+      "resolved": "https://registry.npmjs.org/tsyringe/-/tsyringe-4.10.0.tgz",
+      "integrity": "sha512-axr3IdNuVIxnaK5XGEUFTu3YmAQ6lllgrvqfEoR16g/HGnYY/6We4oWENtAnzK6/LpJ2ur9PAb80RBt7/U4ugw==",
+      "license": "MIT",
+      "dependencies": {
+        "tslib": "^1.9.3"
+      },
+      "engines": {
+        "node": ">= 6.0.0"
+      }
+    },
+    "node_modules/tsyringe/node_modules/tslib": {
+      "version": "1.14.1",
+      "resolved": "https://registry.npmjs.org/tslib/-/tslib-1.14.1.tgz",
+      "integrity": "sha512-Xni35NKzjgMrwevysHTCArtLDpPvye8zV/0E4EyYn43P7/7qvQwPh9BGkHewbMulVntbigmcT7rdX3BNo9wRJg==",
+      "license": "0BSD"
+    },
     "node_modules/type-check": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/type-check/-/type-check-0.4.0.tgz",
@@ -6421,6 +6723,7 @@
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "dev": true,
       "license": "Apache-2.0",
+      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -6695,6 +6998,7 @@
       "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "dev": true,
       "license": "MIT",
+      "peer": true,
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }

package.json

@@ -1,14 +1,19 @@
 {
   "name": "ausgaben_next",
-  "version": "1.0.1",
+  "version": "2.2.1",
   "private": true,
   "scripts": {
     "dev": "next dev -p 3005",
     "build": "next build",
     "start": "next start -p 3005",
-    "lint": "eslint"
+    "lint": "eslint",
+    "generate-password": "node scripts/generate-password.js"
   },
   "dependencies": {
+    "@simplewebauthn/browser": "^13.3.0",
+    "@simplewebauthn/server": "^13.3.2",
+    "bcryptjs": "^3.0.3",
+    "jose": "^6.1.3",
     "mysql2": "^3.17.4",
     "next": "16.1.6",
     "react": "19.2.3",
@@ -16,6 +21,7 @@
   },
   "devDependencies": {
     "@tailwindcss/postcss": "^4",
+    "@types/bcryptjs": "^2.4.6",
     "@types/node": "^20",
     "@types/react": "^19",
     "@types/react-dom": "^19",

proxy.ts

@@ -0,0 +1,75 @@
+import { NextRequest, NextResponse } from 'next/server';
+import { jwtVerify } from 'jose';
+
+const SESSION_COOKIE_NAME = 'auth_session';
+
+/**
+ * Proxy to protect routes with authentication
+ * Reusable for other projects - just copy this file
+ */
+export async function proxy(request: NextRequest) {
+  const { pathname } = request.nextUrl;
+
+  // Check if authentication is enabled
+  const authEnabled = !!process.env.AUTH_USERS;
+  
+  // If auth is not enabled, allow all requests
+  if (!authEnabled) {
+    return NextResponse.next();
+  }
+
+  // Public paths that don't require authentication
+  // (Passkey-Anmeldung muss ohne Session erreichbar sein)
+  const publicPaths = ['/login', '/api/passkey/authenticate'];
+  const isPublicPath = publicPaths.some(path => pathname.startsWith(path));
+
+  if (isPublicPath) {
+    return NextResponse.next();
+  }
+
+  // Check for session cookie
+  const sessionCookie = request.cookies.get(SESSION_COOKIE_NAME);
+
+  if (!sessionCookie) {
+    return NextResponse.redirect(new URL('/login', request.url));
+  }
+
+  // Verify session token
+  try {
+    const secretKey = process.env.AUTH_SECRET || 'default-secret-change-in-production';
+    const key = new TextEncoder().encode(secretKey);
+    
+    const { payload } = await jwtVerify(sessionCookie.value, key, {
+      algorithms: ['HS256'],
+    });
+
+    // Check if session is expired
+    if (payload.expiresAt && (payload.expiresAt as number) < Date.now()) {
+      const response = NextResponse.redirect(new URL('/login', request.url));
+      response.cookies.delete(SESSION_COOKIE_NAME);
+      return response;
+    }
+
+    return NextResponse.next();
+  } catch (error) {
+    // Invalid token - redirect to login
+    const response = NextResponse.redirect(new URL('/login', request.url));
+    response.cookies.delete(SESSION_COOKIE_NAME);
+    return response;
+  }
+}
+
+export default proxy;
+
+export const config = {
+  matcher: [
+    /*
+     * Match all request paths except for the ones starting with:
+     * - _next/static (static files)
+     * - _next/image (image optimization files)
+     * - favicon.ico (favicon file)
+     * - public folder
+     */
+    '/((?!_next/static|_next/image|favicon.ico|.*\\.(?:svg|png|jpg|jpeg|gif|webp)$).*)',
+  ],
+};

scripts/generate-password.js

@@ -0,0 +1,61 @@
+#!/usr/bin/env node
+
+/**
+ * Password Hash Generator
+ * 
+ * Usage:
+ *   node scripts/generate-password.js [password]
+ * 
+ * If no password is provided, you'll be prompted to enter one.
+ */
+
+const bcrypt = require('bcryptjs');
+const readline = require('readline');
+
+function generateHash(password) {
+  const saltRounds = 10;
+  const hash = bcrypt.hashSync(password, saltRounds);
+  return hash;
+}
+
+function promptPassword() {
+  return new Promise((resolve) => {
+    const rl = readline.createInterface({
+      input: process.stdin,
+      output: process.stdout
+    });
+
+    rl.question('Passwort eingeben: ', (password) => {
+      rl.close();
+      resolve(password);
+    });
+  });
+}
+
+async function main() {
+  let password = process.argv[2];
+
+  if (!password) {
+    password = await promptPassword();
+  }
+
+  if (!password) {
+    console.error('❌ Kein Passwort angegeben!');
+    process.exit(1);
+  }
+
+  console.log('\n🔐 Generiere Passwort-Hash...\n');
+  
+  const hash = generateHash(password);
+  
+  console.log('✅ Hash generiert:');
+  console.log('─'.repeat(80));
+  console.log(hash);
+  console.log('─'.repeat(80));
+  console.log('\n📝 Verwende diesen Hash in der .env Datei:');
+  console.log(`AUTH_USERS=username:${hash}`);
+  console.log('\n💡 Beispiel für mehrere Benutzer:');
+  console.log(`AUTH_USERS=admin:${hash},user2:$2a$10$...\n`);
+}
+
+main().catch(console.error);

types/ausgaben.ts

@@ -6,6 +6,7 @@ export interface AusgabenEntry {
   WochTag: string;
   Wo: string;
   Was: string;
+  Kat: string;
   Wieviel: number;
   Wie: string;
   TYP: number;
@@ -16,6 +17,7 @@ export interface CreateAusgabenEntry {
   WochTag: string;
   Wo: string;
   Was: string;
+  Kat: string;
   Wieviel: string | number;
   Wie: string;
   TYP: number;
@@ -33,6 +35,7 @@ export interface MonthlyStats {
   MASTER?: number;
   Einnahmen: number;
   Ueberweisungen: number;
+  katStats?: Record<string, number>;
 }
 
 // Haushalt Zahlungsarten (TYP = 0)