Add C/C++ debugging to personal vscode.

nix/configuration/roles/vscode/default.nix

@@ -54,6 +54,8 @@ let
       personal_specific = [
         ms-python.python
         ms-python.debugpy
+        ms-vscode.cpptools # C/C++ support and debugging
+        ms-vscode.cpptools-extension-pack
       ];
     in
     if config.me.vscode.enable_work_profile then
@@ -87,6 +89,7 @@ in
       "vscode-with-extensions"
       "vscode-extension-ms-vscode-remote-remote-ssh"
       "vscode-extension-MS-python-vscode-pylance"
+      "vscode-extension-ms-vscode-cpptools"
     ];
 
     environment.systemPackages = with pkgs; [