chore(build): preparing for CI

nix/shell.nix

@@ -19,26 +19,10 @@ inputs.devenv.lib.mkShell {
         })
         bacon
         cargo-deny
+        cargo-nextest
         cargo-tarpaulin
         just
       ];
-
-      # processes.run.exec = "cargo watch -x run";
-
-      # enterShell = ''
-      #   echo ""
-      #   echo "Rust development environment loaded!"
-      #   echo "Rust version: $(rustc --version)"
-      #   echo "Cargo version: $(cargo --version)"
-      #   echo ""
-      #   echo "Available tools:"
-      #   echo "  - rust-analyzer (LSP)"
-      #   echo "  - clippy (linter)"
-      #   echo "  - rustfmt (formatter)"
-      #   echo "  - bacon (continuous testing/linting)"
-      #   echo "  - cargo-deny (dependency checker)"
-      #   echo "  - cargo-tarpaulin (code coverage)"
-      # '';
     }
   ];
 }