Use SCRIPT_DIR, add sshpass and auto-mount workspaces, update flakes

flake.nix

@@ -32,10 +32,16 @@
             # Create output directories
             mkdir -p $out/bin
             mkdir -p $out/lib/qvm
+            mkdir -p $out/share/qvm
             
             # Install library files
             install -Dm755 lib/common.sh $out/lib/qvm/common.sh
             
+            # Install default VM flake template
+            if [ -d "flake/default-vm" ]; then
+              cp -r flake/default-vm $out/share/qvm/default-vm
+            fi
+            
             # Install all scripts from bin/
             for script in bin/*; do
               if [ -f "$script" ]; then
@@ -57,6 +63,7 @@
                   pkgs.netcat-gnu
                   pkgs.bc
                   pkgs.procps
+                  pkgs.sshpass
                 ]} \
                 --set QVM_LIB_DIR "$out/lib/qvm"
             done
@@ -104,6 +111,7 @@
             netcat-gnu
             bc
             procps
+            sshpass
             
             # Development tools
             shellcheck