refactor: remove graph tools references and related logic from AIAgent and workflows

internal/ai/application/runtime/workflow_runtime.go

@@ -2,9 +2,7 @@ package runtime
 
 import (
 	"encoding/json"
-	"strings"
 
-	"agent-desk/internal/ai/workflow/compiler"
 	"agent-desk/internal/ai/workflow/dsl"
 	"agent-desk/internal/models"
 	"agent-desk/internal/pkg/enums"
@@ -16,7 +14,6 @@ import (
 
 type resolvedWorkflow struct {
 	Definition dsl.Definition
-	Compiled   compiler.Result
 	WorkflowID int64
 	VersionID  int64
 }
@@ -35,7 +32,6 @@ func resolveAgentWorkflow(aiAgent models.AIAgent) (resolvedWorkflow, error) {
 	}
 	return resolvedWorkflow{
 		Definition: def,
-		Compiled:   compiler.Compile(def),
 		WorkflowID: version.WorkflowID,
 		VersionID:  version.ID,
 	}, nil
@@ -46,15 +42,5 @@ func prepareWorkflowAgent(aiAgent models.AIAgent) (models.AIAgent, resolvedWorkf
 	if err != nil {
 		return aiAgent, resolvedWorkflow{}, err
 	}
-	if strings.TrimSpace(workflow.Compiled.Appendix) == "" {
-		return aiAgent, workflow, nil
-	}
-	prompt := strings.TrimSpace(aiAgent.SystemPrompt)
-	appendix := strings.TrimSpace(workflow.Compiled.Appendix)
-	if prompt == "" {
-		aiAgent.SystemPrompt = appendix
-		return aiAgent, workflow, nil
-	}
-	aiAgent.SystemPrompt = prompt + "\n\n" + appendix
 	return aiAgent, workflow, nil
 }

internal/ai/application/runtime/workflow_summary_test.go

@@ -46,6 +46,40 @@ func TestToWorkflowSummaryPreservesInterruptCheckpoint(t *testing.T) {
 	}
 }
 
+func TestPrepareWorkflowAgentDoesNotInjectWorkflowAppendix(t *testing.T) {
+	db := setupWorkflowResumeTestDB(t)
+	definitionJSON := mustMarshalDefinition(t, dsl.Definition{
+		SchemaVersion: 1,
+		EntryNodeID:   "start",
+		Nodes: []dsl.Node{
+			{ID: "start", Type: workflowregistry.NodeTypeStart, Name: "Start"},
+			{ID: "handoff", Type: workflowregistry.NodeTypeHandoffToHuman, Name: "Handoff"},
+		},
+		Edges: []dsl.Edge{{ID: "edge_start_handoff", Source: "start", Target: "handoff"}},
+	})
+	version := models.AIWorkflowVersion{
+		WorkflowID: 1,
+		Version:    1,
+		Status:     enums.StatusOk,
+		Definition: definitionJSON,
+	}
+	if err := db.Create(&version).Error; err != nil {
+		t.Fatalf("create workflow version: %v", err)
+	}
+
+	agent, _, err := prepareWorkflowAgent(models.AIAgent{
+		ID:                1,
+		SystemPrompt:      "保持简洁回答。",
+		WorkflowVersionID: version.ID,
+	})
+	if err != nil {
+		t.Fatalf("prepareWorkflowAgent() error = %v", err)
+	}
+	if agent.SystemPrompt != "保持简洁回答。" {
+		t.Fatalf("expected system prompt to stay unchanged, got %q", agent.SystemPrompt)
+	}
+}
+
 func TestServiceResumeUsesWorkflowCheckpointData(t *testing.T) {
 	db := setupWorkflowResumeTestDB(t)
 	def := runtimeHumanConfirmDefinition()