added a systeminfo module to quickshell

modules/scripts/QSsysinfo.nix

@@ -0,0 +1,31 @@
+{
+  writeShellApplication,
+  ripgrep,
+  gawkInteractive,
+  ...
+}:
+writeShellApplication {
+  name = "QS-sysinfo";
+  runtimeInputs = [
+    ripgrep
+    gawkInteractive
+  ];
+  text = ''
+ Pad CPU, MEM, DISK to 2 chars (right-aligned)
+cpu=$(awk '/^cpu /{printf("%.0f", ($2+$4)*100/($2+$4+$5))}' /proc/stat)
+cpu=$(printf "%2s" "$cpu")
+
+mem=$(free | awk '/Mem:/ {printf("%.0f",$3/$2*100)}')
+mem=$(printf "%2s" "$mem")
+
+disk=$(df / | awk 'NR==2 {gsub("%",""); print $5}')
+disk=$(printf "%2s" "$disk")
+
+# Pad POWER to 5 chars (XX.XX)
+power=$(upower -b | awk -F: '/energy-rate/ {gsub(/^[ \t]+/, "", $2); split($2,a," "); printf("%.2f", a[1])}')
+power=$(printf "%5s" "$power")
+
+# Output JSON
+echo "{\"cpu\":\"$cpu\",\"mem\":\"$mem\",\"disk\":\"$disk\",\"power\":\"$power\"}"
+  '';
+}