fix(desktop): unfree CLI default, bar icon spacing, unified clock

Hardware findings on Latitude: nix-shell blocked unfree; whole-swap
bars collided icon+percentage; clock needed calcurse + one module.

- Export NIXPKGS_ALLOW_UNFREE=1 + ~/.config/nixpkgs/config.nix
- Mono Nerd face + trailing spaces on battery/volume icons (all bars)
- Single clock `HH:MM · Day DD Mon`; calcurse ships with waybar
- V3 queue entries for laptop re-check

Verification: V0 — nix flake check --no-build green; V2/V3 pending on
session (user-visible bar + CLI unfree).

modules/home/waybar.nix

@@ -94,9 +94,9 @@ let
   # A distinct --class gives the window a matchable app-id for the
   # float+center+size windowrule (hyprland.nix); --gtk-single-instance=false
   # forces a fresh standalone window (ghostty defaults single-instance on).
-  # calcurse ships uncommented in the downstream template (opt-out), so
-  # self-gate with a helpful notify if it's been removed. ghostty is always
-  # installed (ghostty.nix), so it can be relied on for the --class window.
+  # calcurse is installed with the bar (home.packages below); the gate is
+  # only for someone who force-removed it. ghostty is always installed
+  # (ghostty.nix), so it can be relied on for the --class window.
   calendarLauncher = pkgs.writeShellScriptBin "nomarchy-calendar" ''
     if ! command -v calcurse >/dev/null 2>&1; then
       notify-send "Calendar" "calcurse isn't installed (removed from home.packages?)." 2>/dev/null
@@ -200,10 +200,12 @@ let
     };
 
     clock = {
-      format = "{:%H:%M}";
+      # Single module: time + short date (whole-swaps used to split these
+      # into clock + clock#date — one click surface for the calendar).
+      format = "{:%H:%M  ·  %a %d %b}";
       # Left-click → the calendar (nomarchy-calendar → calcurse in a floating
-      # ghostty). Replaces the old format-alt date toggle; the long date now
-      # rides in the tooltip's first line, so nothing is lost on hover.
+      # ghostty). Long weekday/month name + zone + month grid ride in the
+      # tooltip so the bar stays compact.
       on-click = "nomarchy-calendar";
       # The zone line stays live under auto-timezone (the tz-watch SIGUSR2
       # reload keeps it showing the currently *detected* zone).
@@ -218,9 +220,12 @@ let
     };
 
     pulseaudio = {
-      format = "<span size='${toString (t.fonts.size + 2)}pt'>{icon}</span>  {volume}%";
+      # Trailing spaces on icons (not only between span and text): Nerd Font
+      # glyphs often have tight right bearings and otherwise collide with
+      # the percentage digits.
+      format = "<span size='${toString (t.fonts.size + 2)}pt'>{icon}</span> {volume}%";
       format-muted = "󰝟";
-      format-icons.default = [ "󰕿" "󰖀" "󰕾" ];
+      format-icons.default = [ "󰕿 " "󰖀 " "󰕾 " ];
       on-click = "wpctl set-mute @DEFAULT_AUDIO_SINK@ toggle";
       # Right-click → the full mixer (per-app volumes) in a floating window
       # (item 35). pwvucontrol ships in the template suite; the Hyprland
@@ -246,9 +251,10 @@ let
 
     battery = {
       states = { warning = 25; critical = 10; };
+      # Same icon-bearing fix as pulseaudio (see format-icons note there).
       format = "<span size='${toString (t.fonts.size + 2)}pt'>{icon}</span> {capacity}%";
-      format-charging = "<span size='${toString (t.fonts.size + 2)}pt'>󰂄</span> {capacity}%";
-      format-icons = [ "󰁺" "󰁼" "󰁾" "󰂀" "󰁹" ];
+      format-charging = "<span size='${toString (t.fonts.size + 2)}pt'>󰂄 </span>{capacity}%";
+      format-icons = [ "󰁺 " "󰁼 " "󰁾 " "󰂀 " "󰁹 " ];
       # Click either the battery or the power-profile icon → the combined
       # power menu (profile + charge cap). The granular System rows stay.
       on-click = "nomarchy-menu powermgmt";
@@ -498,7 +504,8 @@ in
 
   # The power-profile helpers on PATH, so both the generated bar and the
   # whole-swap themes' static waybar.jsonc can exec them by name — plus
-  # the supervisor hyprland.nix exec-onces.
+  # the supervisor hyprland.nix exec-onces. calcurse is the clock-click
+  # calendar (feature dependency of the bar, not an opt-in app).
   home.packages = lib.optionals config.nomarchy.waybar.enable
-    [ waybarSupervisor powerProfileStatus powerProfileCycle vpnStatus doctorStatus calendarLauncher ];
+    [ waybarSupervisor powerProfileStatus powerProfileCycle vpnStatus doctorStatus calendarLauncher pkgs.calcurse ];
 }