fix: Move all stacks directly under stacks/ (no category subfolders)

stacks/vaultwarden/README.md

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+# Vaultwarden
+
+🔐 **Password Manager (Bitwarden-kompatibel)**
+
+Vaultwarden ist eine inoffizielle Bitwarden API-Implementierung in Rust.
+
+---
+
+## 🚀 Quick Start
+
+1. **In Komodo:** Stack auswählen → Deploy
+2. **Server wählen**
+3. **Warten** bis Container läuft
+4. **Caddy Config** hinzufügen
+5. **Öffnen** und Organization erstellen
+
+---
+
+## 🔧 Caddy Integration
+
+```bash
+ssh <server>
+sudo nano /etc/caddy/Caddyfile
+```
+
+Hinzufügen:
+```caddyfile
+vault.example.com {
+    reverse_proxy localhost:8080
+}
+```
+
+```bash
+sudo systemctl reload caddy
+```
+
+---
+
+## 🔐 Secrets (Komodo)
+
+| Secret Name | Beschreibung | Beispiel |
+|-------------|--------------|----------|
+| `vaultwarden-admin-token` | Admin API Token | `zufälliger-string` |
+
+**Wichtig:** Admin-Token generieren mit:
+```bash
+openssl rand -base64 48
+```
+
+---
+
+## 📁 Files
+
+- `compose.yml` - Docker Compose Konfiguration
+
+---
+
+## 🔄 Updates
+
+Vaultwarden wird automatisch aktuell gehalten durch Komodo.
+
+---
+
+## 📞 Support
+
+- **Docs:** https://github.com/dani-garcia/vaultwarden
+- **Wiki:** https://github.com/dani-garcia/vaultwarden/wiki

stacks/vaultwarden/compose.yml

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+services:
+  vaultwarden:
+    image: vaultwarden/server:latest
+    container_name: vaultwarden
+    restart: unless-stopped
+    ports:
+      - "127.0.0.1:8080:80"
+    volumes:
+      - vaultwarden_data:/data
+    environment:
+      - ADMIN_TOKEN=${SECRET:vaultwarden-admin-token}
+      - WEBSOCKET_ENABLED=true
+      - SIGNUPS_ALLOWED=false
+    networks:
+      - vaultwarden-network
+    healthcheck:
+      test: ["CMD", "wget", "--spider", "-q", "http://localhost:80/alive"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 10s
+
+volumes:
+  vaultwarden_data:
+
+networks:
+  vaultwarden-network:
+    driver: bridge