Fix Caddy configuration to use container names and not localhost

Caddyfile

@@ -7,37 +7,37 @@
 {$N8N_HOSTNAME} {
     # For domains, Caddy will automatically use Let's Encrypt
     # For localhost/port addresses, HTTPS won't be enabled
-    reverse_proxy localhost:5678
+    reverse_proxy n8n:5678
 }
 
 # Open WebUI
 {$WEBUI_HOSTNAME} {
-    reverse_proxy localhost:3000
+    reverse_proxy open-webui:8080
 }
 
 # Flowise
 {$FLOWISE_HOSTNAME} {
-    reverse_proxy localhost:3001
+    reverse_proxy flowise:3001
 }
 
 # Langfuse
 {$LANGFUSE_HOSTNAME} {
-    reverse_proxy localhost:3002
+    reverse_proxy langfuse-web:3000
 }
 
 # # Ollama API
 # {$OLLAMA_HOSTNAME} {
-#     reverse_proxy localhost:11434
+#     reverse_proxy ollama:11434
 # }
 
 # Supabase
 {$SUPABASE_HOSTNAME} {
-    reverse_proxy localhost:8000
+    reverse_proxy kong:8000
 }
 
 # Neo4j
 {$NEO4J_HOSTNAME} {
-    reverse_proxy localhost:7474
+    reverse_proxy neo4j:7474
 }
 
 # # SearXNG
@@ -91,7 +91,7 @@
 #     }
     
 #     # SearXNG (uWSGI)
-#     reverse_proxy localhost:8080 {
+#     reverse_proxy searxng:8080 {
 #         header_up X-Forwarded-Port {http.request.port}
 #         header_up X-Real-IP {http.request.remote.host}
 #         # https://github.com/searx/searx-docker/issues/24