feat: add subagent profiles, memory namespaces, and webui management

pkg/tools/memory_namespace.go

@@ -0,0 +1,38 @@
+package tools
+
+import (
+	"path/filepath"
+	"strings"
+)
+
+func normalizeMemoryNamespace(in string) string {
+	v := normalizeSubagentIdentifier(in)
+	if v == "" {
+		return "main"
+	}
+	return v
+}
+
+func memoryNamespaceBaseDir(workspace, namespace string) string {
+	ns := normalizeMemoryNamespace(namespace)
+	if ns == "main" {
+		return workspace
+	}
+	return filepath.Join(workspace, "agents", ns)
+}
+
+func parseMemoryNamespaceArg(args map[string]interface{}) string {
+	if args == nil {
+		return "main"
+	}
+	raw, _ := args["namespace"].(string)
+	return normalizeMemoryNamespace(raw)
+}
+
+func isPathUnder(parent, child string) bool {
+	rel, err := filepath.Rel(parent, child)
+	if err != nil {
+		return false
+	}
+	return !strings.HasPrefix(rel, "..")
+}