Fix --server-only option to build wsssh-server Debian package

- Modified --server-only to automatically enable Debian package building
- Updated build logic to build wsssh-server package when --server-only is used
- Fixed output messages to show wsssh-server package in server-only builds
- Updated help text to clarify that --server-only builds the Debian package
- Improved build.sh help formatting and usage examples

build.sh

@@ -37,6 +37,7 @@ while [[ $# -gt 0 ]]; do
             ;;
         --server-only)
             BUILD_SERVER_ONLY=true
+            BUILD_DEBIAN=true
             shift
             ;;
         --no-server)
@@ -52,7 +53,7 @@ while [[ $# -gt 0 ]]; do
             echo "Options:"
             echo "  --debian           Build Debian packages (wsssh-server and wsssh-tools)"
             echo "  --debian-only      Build only Debian packages (skip binaries)"
-            echo "  --server-only      Build only the server (wssshd) and wsssh-server package"
+            echo "  --server-only      Build only the server (wssshd) and wsssh-server Debian package"
             echo "  --no-server        Skip building the server (wssshd) and wsssh-server package"
             echo "  --wssshtools-only  Build only the C tools (wssshtools) and wsssh-tools package"
             echo "  --help, -h         Show this help"
@@ -60,7 +61,7 @@ while [[ $# -gt 0 ]]; do
             ;;
         *)
             echo "Unknown option: $1"
-            echo "Usage: $0 [--debian] [--debian-only] [--server-only] [--no-server] [--wssshtools-only]"
+            echo "Usage: $0 [--debian] [--debian-only] [--server-only] [--no-server] [--wssshtools-only] [--help]"
             echo "Try '$0 --help' for more information."
             exit 1
             ;;
@@ -189,8 +190,8 @@ if [ "$BUILD_DEBIAN" = true ]; then
     echo "All Debian build dependencies found."
     echo "Building Debian packages..."
 
-    # Build wsssh-server package if it exists and not wssshtools-only
-    if [ "$BUILD_WSSSHTOOLS_ONLY" = false ] && [ -d "wsssh-server" ] && [ -d "wsssh-server/debian" ]; then
+    # Build wsssh-server package if it exists and (not wssshtools-only OR server-only)
+    if ([ "$BUILD_WSSSHTOOLS_ONLY" = false ] || [ "$BUILD_SERVER_ONLY" = true ]) && [ -d "wsssh-server" ] && [ -d "wsssh-server/debian" ]; then
         echo "Building wsssh-server Debian package..."
         cd wsssh-server
         dpkg-buildpackage -us -uc
@@ -248,7 +249,7 @@ elif [ "$BUILD_SERVER_ONLY" = true ]; then
         echo "Server binary available in dist/ directory:"
         echo "- dist/wssshd (server with web interface)"
     fi
-    if [ "$BUILD_DEBIAN" = true ] && ls dist/wsssh-server*.deb >/dev/null 2>&1; then
+    if ls dist/wsssh-server*.deb >/dev/null 2>&1; then
         echo "- dist/wsssh-server*.deb (wssshd server Debian package)"
     fi
 else