[CI] run npm ci which cleans installs a project

.gitlab-ci.yml

@@ -33,6 +33,7 @@ compile:
     
   script:
     - nix --extra-experimental-features "nix-command flakes" run .#compile
+    - nix --extra-experimental-features "nix-command flakes" run .#compile
 
 test:
   stage: test
@@ -46,6 +47,7 @@ test:
       - .spago/
     
   script:
+    - nix --extra-experimental-features "nix-command flakes" run .#compile
     - nix --extra-experimental-features "nix-command flakes" run .#test-ps
     
     - nix-collect-garbage --delete-older-than 14d

flake.nix

@@ -60,6 +60,17 @@
       in
         {
           packages = rec {
+            ci = pkgs.writeShellApplication {
+              name = "install";
+              runtimeInputs = dependencies;
+              text = ''
+              set -e
+
+              echo "Installing JS Dependencies (CI)"
+              # https://docs.npmjs.com/cli/v9/commands/npm-ci
+              npm ci
+              '';
+            };
             install = pkgs.writeShellApplication {
               name = "install";
               runtimeInputs = dependencies;