feat: add workspace rename dialog (#1429)

* feat: add workspace rename dialog

- Adds a modal dialog to rename the current workspace
- Supports both Niri (via IPC socket) and Hyprland (via hyprctl dispatch)
- Default keybinding: Ctrl+Shift+R to open the dialog
- Pre-fills with current workspace name
- Allows setting empty name to reset to default

* refactor: wrap WorkspaceRenameModal in LazyLoader

Reduces memory footprint when the modal is not in use.

core/internal/config/embedded/hypr-binds.conf

@@ -91,6 +91,9 @@ bind = SUPER CTRL, up, movetoworkspace, e-1
 bind = SUPER CTRL, U, movetoworkspace, e+1
 bind = SUPER CTRL, I, movetoworkspace, e-1
 
+# === Workspace Management ===
+bind = CTRL SHIFT, R, exec, dms ipc call workspace-rename open
+
 # === Move Workspaces ===
 bind = SUPER SHIFT, Page_Down, movetoworkspace, e+1
 bind = SUPER SHIFT, Page_Up, movetoworkspace, e-1

core/internal/config/embedded/niri-binds.kdl

@@ -133,6 +133,11 @@ binds {
     Mod+Ctrl+U         { move-column-to-workspace-down; }
     Mod+Ctrl+I         { move-column-to-workspace-up; }
 
+    // === Workspace Management ===
+    Ctrl+Shift+R hotkey-overlay-title="Rename Workspace" {
+        spawn "dms" "ipc" "call" "workspace-rename" "open";
+    }
+
     // === Move Workspaces ===
     Mod+Shift+Page_Down { move-workspace-down; }
     Mod+Shift+Page_Up   { move-workspace-up; }