feat: improve nix-update workflow and update packages

- Refactor nix-update.yml: push directly to master instead of PRs
- Add skip list for packages without upstream releases
- Add opencode subpackage handling for node_modules
- Add nix-update-script to beads, code2prompt, mem0
- Update mem0: 1.0.0 -> 1.0.2
- Update opencode: 1.1.18 -> 1.1.25
- Fix n8n tag format
- Add n8n update.sh helper script

pkgs/mem0/default.nix

@@ -1,18 +1,19 @@
 {
   lib,
+  nix-update-script,
   python3,
   fetchFromGitHub,
 }:
 python3.pkgs.buildPythonPackage rec {
   pname = "mem0ai";
-  version = "1.0.0";
+  version = "1.0.2";
   pyproject = true;
 
   src = fetchFromGitHub {
     owner = "mem0ai";
     repo = "mem0";
     rev = "v${version}";
-    hash = "sha256-DluzIhwL/GanqtRSMW7ax+OVc2kZjbwQ0lpPCQFnD58=";
+    hash = "sha256-wvIPmqYlpto+ggifdSOjveEmSneKeZcoltItusYSu4Q=";
   };
 
   # Relax Python dependency version constraints
@@ -80,6 +81,8 @@ python3.pkgs.buildPythonPackage rec {
     install -Dm755 ${./server.py} $out/bin/mem0-server
   '';
 
+  passthru.updateScript = nix-update-script {};
+
   meta = with lib; {
     description = "Long-term memory layer for AI agents with REST API support";
     longDescription = ''