hyprland: ghostty scratchpad on special:scratch, SUPER+Return

settings/hyprland.nix

@@ -282,6 +282,10 @@ in
               -- doing something else; the window rule above swallows it onto
               -- special:music silently, so it never steals focus.
               hl.exec_cmd("ghostty --title=spotify-player -e spotify_player")
+              -- Scratchpad terminal, same trick: parked on special:scratch at
+              -- login so SUPER+Return is always an instant toggle and the shell
+              -- keeps its history/cwd between peeks.
+              hl.exec_cmd("ghostty --title=scratchpad")
               -- swayosd removed; volume/brightness OSD handled by quickshell
               ${lib.optionalString isMacbook ''hl.exec_cmd("hypridle")''}
             end)
@@ -347,6 +351,21 @@ in
               center = true,
             })
 
+            -- Scratchpad terminal — same title-match + float-to-inset pattern as
+            -- spotify-player above.
+            hl.window_rule({
+              match = { title = "^scratchpad$" },
+              workspace = "special:scratch silent",
+            })
+
+            hl.window_rule({
+              name  = "scratchpad-inset",
+              match = { title = "^scratchpad$" },
+              float = true,
+              size = "80% 80%",
+              center = true,
+            })
+
             -- Games stall on other workspaces: no frame callbacks = no render =
             -- game loop blocks. Keep them ticking in the background at
             -- misc:render_unfocused_fps (15).
@@ -400,6 +419,7 @@ in
             hl.bind(mod .. " + P", hl.dsp.window.pseudo())
             hl.bind(mod .. " + S", hl.dsp.layout("togglesplit"))
             hl.bind(mod .. " + M", hl.dsp.workspace.toggle_special("music"))
+            hl.bind(mod .. " + Return", hl.dsp.workspace.toggle_special("scratch"))
 
             -- Focus
             hl.bind(mod .. " + left",  hl.dsp.focus({ direction = "left" }))