feat: enrich search with msglib display entities

internal/tools/isphere_groups_test.go

@@ -8,6 +8,7 @@ import (
 	"github.com/modelcontextprotocol/go-sdk/mcp"
 
 	"isphere-ai-bridge/internal/isphere"
+	"isphere-ai-bridge/internal/msglib"
 )
 
 func TestISphereSearchGroupsToolReturnsJIDGroups(t *testing.T) {
@@ -80,6 +81,60 @@ func TestISphereSearchGroupsToolReturnsJIDGroups(t *testing.T) {
 	}
 }
 
+func TestISphereSearchGroupsToolUsesInjectedDisplayEntities(t *testing.T) {
+	fakeMessages := &fakeReceiveMessagesSource{}
+	fakeDisplay := &fakeDisplayEntitySource{entities: []msglib.DisplayEntity{{
+		EntityType:     msglib.EntityTypeGroups,
+		SourceTable:    "TD_WorkGroupAuth",
+		JID:            "project-room@conference",
+		DisplayName:    "Project Room",
+		Confidence:     0.9,
+		MatchedColumns: []string{"GroupJID", "GroupName"},
+	}}}
+	session, cleanup := connectToolsTestSession(t, func(server *mcp.Server) {
+		RegisterISphereGroupToolsWithDisplayEntities(server, fakeMessages, fakeDisplay)
+	})
+	defer cleanup()
+
+	callResult, err := session.CallTool(context.Background(), &mcp.CallToolParams{
+		Name:      ToolNameSearchGroups,
+		Arguments: map[string]any{"query": "project", "limit": 5},
+	})
+	if err != nil {
+		t.Fatalf("call %s: %v", ToolNameSearchGroups, err)
+	}
+	if callResult.IsError {
+		t.Fatalf("call result is error: %+v", callResult)
+	}
+
+	var decoded struct {
+		Groups []struct {
+			GroupID     string  `json:"group_id"`
+			DisplayName string  `json:"display_name"`
+			Source      string  `json:"source"`
+			Confidence  float64 `json:"confidence"`
+			RawRef      string  `json:"raw_ref"`
+		} `json:"groups"`
+	}
+	payload, _ := json.Marshal(callResult.StructuredContent)
+	if err := json.Unmarshal(payload, &decoded); err != nil {
+		t.Fatalf("decode structured content %s: %v", payload, err)
+	}
+	if len(decoded.Groups) != 1 {
+		t.Fatalf("groups = %+v, want one", decoded.Groups)
+	}
+	group := decoded.Groups[0]
+	if group.GroupID != "project-room@conference" || group.DisplayName != "Project Room" {
+		t.Fatalf("unexpected MsgLib group identity: %+v", group)
+	}
+	if group.Source != "msglib_readonly" || group.Confidence != 0.9 || group.RawRef != "msglib:TD_WorkGroupAuth" {
+		t.Fatalf("unexpected MsgLib group metadata: %+v", group)
+	}
+	if len(fakeDisplay.queries) != 1 || fakeDisplay.queries[0].EntityType != msglib.EntityTypeGroups || fakeDisplay.queries[0].Query != "project" || fakeDisplay.queries[0].Limit != 5 {
+		t.Fatalf("display queries = %+v", fakeDisplay.queries)
+	}
+}
+
 func TestISphereSearchGroupsToolValidatesContractArgs(t *testing.T) {
 	fake := &fakeReceiveMessagesSource{
 		result: isphere.ReceiveMessagesResult{Messages: []isphere.Message{{