fix(waybar): show the power-profile indicator in the summer themes

custom/powerprofile only appeared in the generated bar -- its exec was a
writeShellScript store path, which can't go in the summer themes' static
whole-swap waybar.jsonc, so summer-day/night were missing it (the DND bell
already had parity). Promote powerProfileStatus/Cycle to named
writeShellScriptBins on PATH (waybar.nix home.packages) and reference them
by bare name, then add custom/powerprofile to both summer waybar.jsonc +
their waybar.css. Same pattern as the swaync bell.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

modules/home/waybar.nix

@@ -17,7 +17,11 @@ let
   # present) running PPD, so the module hides itself on desktops and
   # under the TLP backend — no system→home coupling. Speedometer glyphs
   # (slow/medium/fast) map to power-saver/balanced/performance.
-  powerProfileStatus = pkgs.writeShellScript "nomarchy-powerprofile-status" ''
+  #
+  # Named writeShellScriptBins (put on PATH via home.packages below) rather
+  # than bare writeShellScript store paths, so the whole-swap themes' static
+  # waybar.jsonc can exec them by name too — same as the swaync bell.
+  powerProfileStatus = pkgs.writeShellScriptBin "nomarchy-powerprofile-status" ''
     case "$(ls /sys/class/power_supply/ 2>/dev/null)" in *BAT*) ;; *) exit 0 ;; esac
     command -v powerprofilesctl >/dev/null 2>&1 || exit 0
     prof=$(powerprofilesctl get 2>/dev/null) || exit 0
@@ -29,7 +33,7 @@ let
     printf '{"text":"%s","tooltip":"Power profile: %s","class":"%s"}\n' "$icon" "$prof" "$prof"
   '';
   # Cycle to the next profile this machine actually offers (wraps around).
-  powerProfileCycle = pkgs.writeShellScript "nomarchy-powerprofile-cycle" ''
+  powerProfileCycle = pkgs.writeShellScriptBin "nomarchy-powerprofile-cycle" ''
     command -v powerprofilesctl >/dev/null 2>&1 || exit 0
     cur=$(powerprofilesctl get 2>/dev/null) || exit 0
     avail=$(powerprofilesctl list 2>/dev/null | sed -nE 's/^[* ] ([a-z-]+):$/\1/p')
@@ -112,10 +116,10 @@ let
     };
 
     "custom/powerprofile" = {
-      exec = "${powerProfileStatus}";
+      exec = "nomarchy-powerprofile-status";
       return-type = "json";
       interval = 5;
-      on-click = "${powerProfileCycle}";
+      on-click = "nomarchy-powerprofile-cycle";
     };
 
     # swaync notification bell + Do-Not-Disturb state. `-swb` streams JSON
@@ -227,4 +231,9 @@ in
       else generatedStyle
     );
   };
+
+  # The power-profile helpers on PATH, so both the generated bar and the
+  # whole-swap themes' static waybar.jsonc can exec them by name.
+  home.packages = lib.optionals config.nomarchy.waybar.enable
+    [ powerProfileStatus powerProfileCycle ];
 }