base: Super+Ctrl+T toggles one persistent btop

Omarchy's Activity binding launches a fresh btop each time, so its graph
history is gone on every open. base now starts a single btop at login on
special:activity and binds Super+Ctrl+T to show/hide it; if btop is quit,
the next toggle re-seeds it. Ships as hypr/layers/10-base.lua so every
profile, including the Coder desktops, gets it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

profiles/base/config/hypr/layers/10-base.lua

@@ -0,0 +1,22 @@
+-- Activity (btop) as a persistent drop-down: a single btop starts at login on
+-- its own special workspace, and SUPER+CTRL+T shows/hides it instead of
+-- launching a fresh btop (and losing its graph history) every time.
+
+local app_id = "org.omarchy.activity"
+local launch = "omarchy-launch-tui --app-id=" .. app_id .. " btop"
+
+-- Route the window by class: launch-tui goes through setsid/uwsm-app, so an
+-- exec rule can't follow the PID.
+o.window(app_id, { workspace = "special:activity silent" })
+
+-- Start it at login, and re-seed it if btop was quit and the toggle finds the
+-- workspace empty.
+o.exec_on_start(launch)
+hl.workspace_rule({
+  workspace = "special:activity",
+  on_created_empty = launch,
+})
+
+-- Was: launch a new btop each time.
+hl.unbind("SUPER + CTRL + T")
+o.bind("SUPER + CTRL + T", "Activity", hl.dsp.workspace.toggle_special("activity"))

profiles/base/profile

@@ -1,4 +1,4 @@
 # Every machine, including the Coder desktops. Keeps hyprland.lua and
 # bindings.lua at stock plus the hypr/layers/ loader, so every other layer adds
 # Hyprland settings as its own file instead of editing a shared one.
-description="Shared by every machine: the hypr/layers/ loader"
+description="Shared by every machine: the hypr/layers/ loader, persistent Activity (btop) toggle"