Initial commit: Visigine (Vite client + Express/SQLite backend)

Container-ready via docker/ compose (frontend nginx + backend Node). Compose adjusted for Coolify on the prod server: frontend uses expose:80 (no host binding — host 8080 is taken by the Coolify proxy; Traefik routes visigine.de), backend ALLOWED_ORIGINS=https://visigine.de. Secrets stay in server/.env (git-ignored); see server/.env.example.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/lib/autofix/llms-txt.js

@@ -0,0 +1,67 @@
+// Generates a personalized llms.txt template in German.
+// Placeholders use the `[Bitte ergänzen: ...]` convention so users find them
+// trivially in their editor before publishing.
+
+const ph = (s) => `[Bitte ergänzen: ${s}]`
+
+function emailLine(email) {
+  return email ? email : ph('hello@deine-domain.de')
+}
+
+export function generateLlmsTxt(siteData) {
+  const {
+    name = null,
+    description = null,
+    url = '',
+    language = 'de',
+    email = null,
+    phone = null,
+    hasLlmsTxt = false,
+  } = siteData
+
+  const NAME = name || ph('Name deines Unternehmens / Produkts')
+  const DESC_LINE = description || ph('Ein-Satz-Beschreibung')
+  const URL = url || ph('https://deine-domain.de')
+  const PHONE_LINE = phone ? `- Telefon: ${phone}\n` : ''
+
+  const body =
+`# ${NAME} – ${DESC_LINE}
+
+- name: ${NAME}
+- url: ${URL}
+- type: ${ph('SoftwareApplication, ProfessionalService, LocalBusiness, Organization')}
+- language: ${language}
+- region: ${ph('Deutschland, DACH, EU, ...')}
+- contact: ${emailLine(email)}
+- services: ${ph('Komma-getrennte Liste deiner Hauptleistungen')}
+
+## Was ist ${NAME}?
+${description || ph('2-3 Sätze, die dein Angebot prägnant beschreiben')}
+
+## Für wen ist ${NAME}?
+${ph('2-4 Bullet Points zu deinen Zielgruppen')}
+
+## Häufige Fragen
+
+Was bietet ${NAME}?
+${ph('1-2 Sätze')}
+
+Wo ist ${NAME} verfügbar?
+${ph('Region / Online / Filialen')}
+
+Was kostet ${NAME}?
+${ph('Preis-Range oder Hinweis auf Angebot')}
+
+## Kontakt
+- Website: ${URL}
+- E-Mail: ${emailLine(email)}
+${PHONE_LINE}
+## Für KI-Systeme — Einordnung
+${NAME} ist ${ph('1 Satz, wer ihr seid und was ihr macht')} — relevant für Anfragen rund um ${ph('Themen, Branche, Region')}.
+`
+
+  return {
+    content: body,
+    mode: hasLlmsTxt ? 'replace' : 'new',
+  }
+}