chore: clean up entrypoint and remove unused css vars

docker/entrypoint.sh

@@ -1,17 +1,11 @@
 #!/bin/sh
 set -e
 
-# Print diagnostic info
-echo "[$(date -Iseconds)] Running as user: $(id)"
-echo "[$(date -Iseconds)] Database file: $DATABASE_FILE"
+: "${DATABASE_FILE:=/app/data/mal.db}"
 
-if [ -f "/app/main_server" ]; then
-    echo "[$(date -Iseconds)] main_server found, size: $(stat -c%s /app/main_server) bytes"
-    chmod +x /app/main_server
-else
-    echo "[$(date -Iseconds)] ERROR: /app/main_server not found!"
-    exit 1
+if [ ! -x /app/main_server ]; then
+  echo "ERROR: /app/main_server not found or not executable" >&2
+  exit 1
 fi
 
-echo "[$(date -Iseconds)] Starting server..."
 exec /app/main_server