fix: increase Apache MaxRequestWorkers and optimize performance settings

- Increase MaxRequestWorkers from 150 to 400 to prevent "server reached MaxRequestWorkers" errors
- Configure MPM Prefork module with optimized worker settings
- Add AllowEncodedSlashes NoDecode for special characters in filenames
- Increase Redis maxmemory from 512MB to 2GB for better caching
- Extend PHP execution times from 1800s to 7200s for large operations
- Increase MariaDB max_allowed_packet to 1GB for large file uploads

These changes resolve sync failures caused by Apache worker exhaustion.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

apache/nextcloud.conf

@@ -1,6 +1,10 @@
 # Configuration pour reverse proxy Traefik
 # Récupération de l'IP réelle du client via X-Forwarded-For
 ServerName cloud.agence66.fr
+
+# Autoriser les caractères spéciaux encodés dans les noms de fichiers
+AllowEncodedSlashes NoDecode
+
 RemoteIPHeader X-Forwarded-For
 RemoteIPTrustedProxy 172.16.0.0/12
 RemoteIPTrustedProxy 10.0.0.0/8
@@ -15,6 +19,15 @@ KeepAlive On
 KeepAliveTimeout 300
 MaxKeepAliveRequests 200
 
+# Configuration MPM Prefork - Augmentation des workers
+<IfModule mpm_prefork_module>
+    StartServers             10
+    MinSpareServers          10
+    MaxSpareServers          20
+    MaxRequestWorkers        400
+    MaxConnectionsPerChild   1000
+</IfModule>
+
 <Directory /var/www/html/>
     Options FollowSymLinks MultiViews
     AllowOverride All