feat: implement business node specifications and enhance workflow editor with node specs support

internal/ai/workflow/registry/registry.go

@@ -251,6 +251,8 @@ func DefaultRegistry() *Registry {
 			InputSchema: []VariableSpec{
 				requiredInput("ticketDraft", "工单草稿", VariableTypeObject, "已经由客户确认的工单草稿内容。"),
 				requiredInput("confirmed", "已确认", VariableTypeBoolean, "客户是否已确认创建工单。"),
+				optionalInput("tagIds", "工单标签", VariableTypeIntegerArray, "创建工单时附加的标签 ID 列表。"),
+				optionalInput("assigneeId", "处理人", VariableTypeInteger, "创建工单后默认指派的客服用户 ID。"),
 			},
 			OutputSchema: []VariableSpec{
 				output("ticketId", "工单 ID", VariableTypeInteger, "创建成功后的工单内部编号。"),

internal/ai/workflow/registry/registry_test.go

@@ -2,6 +2,22 @@ package registry
 
 import "testing"
 
+func TestDefaultRegistryMarksOnlyRuntimeSupportedNodesExecutable(t *testing.T) {
+	registry := DefaultRegistry()
+	for _, nodeType := range []string{NodeTypeCreateTicket, NodeTypeHumanConfirm, NodeTypeSendReply, NodeTypeLLM} {
+		spec, ok := registry.Get(nodeType)
+		if !ok || !spec.Executable {
+			t.Fatalf("expected %s to be executable, got %#v", nodeType, spec)
+		}
+	}
+	for _, nodeType := range []string{NodeTypeHTTP, NodeTypeCode, NodeTypeLoop} {
+		spec, ok := registry.Get(nodeType)
+		if !ok || spec.Executable {
+			t.Fatalf("expected %s to be unavailable in server runtime, got %#v", nodeType, spec)
+		}
+	}
+}
+
 func TestDefaultRegistryVariablesHaveBusinessLabels(t *testing.T) {
 	for _, spec := range DefaultRegistry().List() {
 		for _, variable := range append(spec.InputSchema, spec.OutputSchema...) {

internal/ai/workflow/registry/spec.go

@@ -45,6 +45,8 @@ type NodeSpec struct {
 	Title                           string               `json:"title"`
 	Description                     string               `json:"description"`
 	Icon                            string               `json:"icon"`
+	Category                        string               `json:"category"`
+	Executable                      bool                 `json:"executable"`
 	RiskLevel                       NodeRiskLevel        `json:"riskLevel"`
 	Interruptible                   bool                 `json:"interruptible"`
 	RequiresConfirmationPredecessor bool                 `json:"requiresConfirmationPredecessor"`
@@ -68,12 +70,54 @@ func NewRegistry(specs ...NodeSpec) *Registry {
 		if spec.Type == "" {
 			continue
 		}
+		spec.Executable = IsExecutableNodeType(spec.Type)
+		if spec.Category == "" {
+			spec.Category = NodeCategory(spec.Type)
+		}
 		ret.specsByType[spec.Type] = spec
 		ret.specs = append(ret.specs, spec)
 	}
 	return ret
 }
 
+func IsExecutableNodeType(nodeType string) bool {
+	switch nodeType {
+	case NodeTypeStart,
+		NodeTypeConversationUnderstanding,
+		NodeTypeReplyPolicy,
+		NodeTypeKnowledgeRetrieve,
+		NodeTypeAnswerabilityGate,
+		NodeTypeCondition,
+		NodeTypeAnalyzeConversation,
+		NodeTypePrepareTicketDraft,
+		NodeTypeHumanConfirm,
+		NodeTypeCreateTicket,
+		NodeTypeLLMReply,
+		NodeTypeLLM,
+		NodeTypeSendReply,
+		NodeTypeHandoffToHuman,
+		NodeTypeEnd:
+		return true
+	default:
+		return false
+	}
+}
+
+func NodeCategory(nodeType string) string {
+	switch nodeType {
+	case NodeTypeStart, NodeTypeEnd:
+		return "trigger"
+	case NodeTypeCondition, NodeTypeMultiCondition, NodeTypeLoop, NodeTypeBlockStart, NodeTypeBlockEnd, NodeTypeContinue, NodeTypeBreak:
+		return "control"
+	case NodeTypeConversationUnderstanding, NodeTypeReplyPolicy, NodeTypeAnswerabilityGate, NodeTypeAnalyzeConversation, NodeTypeLLMReply, NodeTypeLLM, NodeTypeKnowledgeRetrieve:
+		return "ai"
+	case NodeTypePrepareTicketDraft, NodeTypeHumanConfirm, NodeTypeCreateTicket, NodeTypeHandoffToHuman, NodeTypeSendReply:
+		return "business"
+	default:
+		return "utility"
+	}
+}
+
 func (r *Registry) Get(nodeType string) (NodeSpec, bool) {
 	if r == nil {
 		return NodeSpec{}, false

internal/ai/workflow/validator/validator.go

@@ -82,6 +82,10 @@ func (v *definitionValidator) validateNodes() {
 			v.addError(field+".type", "unknown node type: "+node.Type)
 			continue
 		}
+		if !registry.IsExecutableNodeType(node.Type) {
+			v.addError(field+".type", "node type is not supported by the server runtime: "+node.Type)
+			continue
+		}
 		switch node.Type {
 		case registry.NodeTypeStart:
 			v.startNodeIDs = append(v.startNodeIDs, node.ID)

internal/ai/workflow/validator/validator_test.go

@@ -18,6 +18,23 @@ func TestValidateDefinitionAcceptsMinimalFlowGramStyleFlow(t *testing.T) {
 	}
 }
 
+func TestValidateDefinitionRejectsNodeMissingFromServerRuntime(t *testing.T) {
+	def := dsl.Definition{
+		Nodes: []dsl.Node{
+			node("start_1", "start", nil, nil),
+			node("http_1", "http", nil, nil),
+			node("end_1", "end", nil, nil),
+		},
+		Edges: []dsl.Edge{edge("start_1", "http_1"), edge("http_1", "end_1")},
+	}
+
+	result := validator.ValidateDefinition(def, registry.DefaultRegistry())
+
+	if result.Valid || !hasValidationMessage(result, "not supported by the server runtime") {
+		t.Fatalf("expected unsupported-runtime error, got %#v", result.Errors)
+	}
+}
+
 func TestValidateDefinitionAcceptsOfficialFlowGramCondition(t *testing.T) {
 	def := dsl.Definition{
 		Nodes: []dsl.Node{