feat(home): add opencode-claude-auth as a claude-code plugin

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: stackptr

modules/home/development.nix

@@ -37,6 +37,7 @@ in {
       programs.claude-code = {
         enable = true;
         enableMcpIntegration = true;
+        plugins = [pkgs.opencode-claude-auth];
         memory.source = "${llm-profile}/README.md";
         settings = {
           model = "sonnet";