Initial commit: Maria Malejka memorial website

Next.js 14 + node:sqlite memorial site with:
- Hero section, photo slideshow & gallery
- Memory/thoughts editor (admin)
- Music player with upload
- Video gallery
- Docker Compose deployment
- Responsive warm earth tone design

src/app/api/auth/route.ts

@@ -0,0 +1,39 @@
+import { NextRequest, NextResponse } from 'next/server'
+import { createHash } from 'crypto'
+import { cookies } from 'next/headers'
+
+function getExpectedToken() {
+  return createHash('sha256')
+    .update(process.env.ADMIN_PASSWORD || 'change-me')
+    .digest('hex')
+}
+
+export async function GET() {
+  const cookieStore = cookies()
+  const token = cookieStore.get('admin_auth')?.value
+  return NextResponse.json({ authed: token === getExpectedToken() })
+}
+
+export async function POST(req: NextRequest) {
+  const { password } = await req.json()
+
+  if (password !== (process.env.ADMIN_PASSWORD || 'change-me')) {
+    return NextResponse.json({ error: 'Falsches Passwort' }, { status: 401 })
+  }
+
+  const response = NextResponse.json({ success: true })
+  response.cookies.set('admin_auth', getExpectedToken(), {
+    httpOnly: true,
+    secure: process.env.NODE_ENV === 'production',
+    sameSite: 'lax',
+    maxAge: 60 * 60 * 24 * 30,
+    path: '/',
+  })
+  return response
+}
+
+export async function DELETE() {
+  const response = NextResponse.json({ success: true })
+  response.cookies.delete('admin_auth')
+  return response
+}