Store memory

registry.Register(new AgentTool(            "store_memory",            "Stores a persistent user fact in hierarchical vector memory (NOT workspace files). Use for preferences, name, job, pets, etc. Paths like user/name or user/preferences/color.",            args => {                if (registry.Memory is null) return "Error: Memory system is not initialized.";                try {                    using var doc = JsonDocument.Parse(args);                    var root = doc.RootElement;                    if (!root.TryGetProperty("path", out var pathProp) || !root.TryGetProperty("content", out var contentProp)) {                        return "Error: Missing path or content properties.";                    }                    string path = pathProp.GetString() ?? "";                    string content = contentProp.GetString() ?? "";                    if (string.IsNullOrWhiteSpace(path)) return "Error: Path cannot be empty.";                    registry.Memory.StoreAsync(path, content).GetAwaiter().GetResult();                    return $"Success: Stored memory under path '{path}'.";                }                catch (Exception ex) {                    return $"Error: {ex.Message}";                }            },            new {                type = "object",                properties = new {                    path = new { type = "string", description = "The hierarchical path, e.g., 'user/name' or 'user/preferences/color'." },                    content = new { type = "string", description = "The fact or information to store." }                },                required = new[] { "path", "content" }            }        ));