feat: complete and visually audit the Hyprland workstation

Refresh system/tool pins, install official Element Nightly, expand development tools, and finish desktop workflows with a shared charcoal/gold design. Retain host-specific updates and NixOS recovery generations.

desktop-help.py

@@ -0,0 +1,47 @@
+"""Read-only shortcut search from Hyprland's running binding registry.
+
+Descriptions come from native Lua bindings, not a second hand-maintained cheat
+sheet. Choosing a row does NOT execute its command (in particular power/close).
+"""
+import json
+import subprocess
+import sys
+
+
+def rows(bindings):
+    modifiers = [(64, "Super"), (4, "Ctrl"), (8, "Alt"), (1, "Shift")]
+    result = []
+    for binding in bindings:
+        description = binding.get("description", "")
+        if not description:
+            continue
+        keys = [name for bit, name in modifiers if binding.get("modmask", 0) & bit]
+        keys.append(binding.get("key") or f"code:{binding.get('keycode', 0)}")
+        submap = binding.get("submap")
+        context = f" [{submap}]" if submap else ""
+        result.append(f"{description}{context}    {' + '.join(keys)}")
+    return sorted(set(result), key=str.casefold)
+
+
+def main():
+    try:
+        data = json.loads(subprocess.check_output(["hyprctl", "-j", "binds"], text=True))
+        entries = rows(data)
+        if "--print" in sys.argv:
+            print("\n".join(entries))
+            return
+        if not entries:
+            raise ValueError("No described shortcuts; reload the managed Hyprland configuration.")
+        result = subprocess.run(
+            ["fuzzel", "--dmenu", "--prompt", "Shortcuts  ", "--width", "68", "--lines", "12"],
+            input="\n".join(entries), text=True, stdout=subprocess.DEVNULL,
+        )
+        if result.returncode not in (0, 1):
+            raise RuntimeError(f"Shortcut picker exited with {result.returncode}")
+    except (OSError, ValueError, subprocess.CalledProcessError, RuntimeError) as error:
+        print(f"desktop-help: {error}", file=sys.stderr)
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()