feat: add package-lock.json for claude-code

Introduced a new `package-lock.json` for the `claude-code` project. This ensures consistent dependency management and locks all required versions for reproducible builds.

overlays/unstable/claude-code/package.nix

@@ -0,0 +1,43 @@
+{ lib
+, buildNpmPackage
+, fetchzip
+,
+}:
+
+buildNpmPackage rec {
+  pname = "claude-code";
+  version = "0.2.99";
+
+  src = fetchzip {
+    url = "https://registry.npmjs.org/@anthropic-ai/claude-code/-/claude-code-${version}.tgz";
+    hash = "sha256-MfzhISp36niovUMPU8vC+a3PTp53PpOHeGacH6nj/PY=";
+  };
+
+  npmDepsHash = "sha256-pe2WSDovHvAsx4SYr+a/fTRrpYPya68S10mUWvv18M4=";
+
+  postPatch = ''
+    cp ${./package-lock.json} package-lock.json
+  '';
+
+  dontNpmBuild = true;
+
+  AUTHORIZED = "1";
+
+  # `claude-code` tries to auto-update by default, this disables that functionality.
+  # https://docs.anthropic.com/en/docs/agents-and-tools/claude-code/overview#environment-variables
+  postInstall = ''
+    wrapProgram $out/bin/claude \
+      --set DISABLE_AUTOUPDATER 1
+  '';
+
+  passthru.updateScript = ./update.sh;
+
+  meta = {
+    description = "An agentic coding tool that lives in your terminal, understands your codebase, and helps you code faster";
+    homepage = "https://github.com/anthropics/claude-code";
+    downloadPage = "https://www.npmjs.com/package/@anthropic-ai/claude-code";
+    license = lib.licenses.unfree;
+    maintainers = [ lib.maintainers.malo ];
+    mainProgram = "claude";
+  };
+}