feat: claude code custom packaging

pkgs/claude-code/default.nix

@@ -0,0 +1,37 @@
+{ lib, stdenv, fetchurl, nodejs }:
+
+stdenv.mkDerivation rec {
+  pname = "claude-code";
+  version = "2.0.0";
+
+  src = fetchurl {
+    url =
+      "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-${version}.tgz";
+    hash =
+      "sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA="; # Update with actual hash
+  };
+
+  nativeBuildInputs = [ nodejs ];
+
+  unpackPhase = ''
+    tar -xzf $src
+  '';
+
+  installPhase = ''
+    mkdir -p $out/lib/node_modules/@anthropic-ai/claude-code
+    cp -r package/* $out/lib/node_modules/@anthropic-ai/claude-code/
+
+    mkdir -p $out/bin
+    ln -s $out/lib/node_modules/@anthropic-ai/claude-code/cli.js $out/bin/claude-code
+    chmod +x $out/bin/claude-code
+  '';
+
+  meta = with lib; {
+    description = "Anthropic Claude Code CLI v2.0.0";
+    homepage = "https://claude.ai/code";
+    license = licenses.unfree;
+    maintainers = [ ];
+    platforms = platforms.all;
+    mainProgram = "claude-code";
+  };
+}