fix: session Clear walk fix, WatchService nil check, modelselect test

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: DotNetAge

internal/setup/component/modelselect/modelselect_test.go

@@ -1,12 +1,18 @@
 package modelselect
 
 import (
+	"regexp"
 	"strings"
 	"testing"
 
 	setupdata "github.com/DotNetAge/mindx/internal/setup/data"
 )
 
+func stripANSI(s string) string {
+	re := regexp.MustCompile("\x1b\\[[0-9;]*[a-zA-Z]")
+	return re.ReplaceAllString(s, "")
+}
+
 func TestViewContainsGradientTitle(t *testing.T) {
 	items := []setupdata.ModelItem{
 		{Name: "GPT-4o", Desc: "OpenAI 最新多模态模型", BaseURL: "https://api.openai.com/v1", CredRef: "openai"},
@@ -18,10 +24,11 @@ func TestViewContainsGradientTitle(t *testing.T) {
 	view := m.View()
 	t.Logf("\n=== View Output ===\n%s\n=== End ===", view)
 
-	if !strings.Contains(view, "选择 AI 模型") {
-		t.Error("View output does NOT contain '选择 AI 模型'")
+	plain := stripANSI(view)
+	if !strings.Contains(plain, "选择一个 AI 模型") {
+		t.Error("View output does NOT contain '选择一个 AI 模型'")
 	} else {
-		t.Log("✅ View output contains '选择 AI 模型'")
+		t.Log("✅ View output contains '选择一个 AI 模型'")
 	}
 
 	if strings.Contains(view, "\x1b[") {

pkg/memory/watch_service.go

@@ -142,7 +142,9 @@ func (s *FileWatchService) Start(ctx context.Context) error {
 // Stop gracefully shuts down the file watch service.
 func (s *FileWatchService) Stop() {
 	s.cancel()
-	_ = s.watcher.Close()
+	if s.watcher != nil {
+		_ = s.watcher.Close()
+	}
 	<-s.done
 	s.wg.Wait()
 }

pkg/session/file_store.go

@@ -338,13 +338,22 @@ func (s *FileSessionStore) Delete(ctx context.Context, timestamp int64, sessionI
 }
 
 func (s *FileSessionStore) Clear(ctx context.Context, sessionID string) error {
-	dirPath := s.findSessionDir(sessionID)
+	var dirPath string
+	_ = filepath.Walk(s.rootDir, func(path string, info os.FileInfo, err error) error {
+		if err != nil || info.IsDir() || info.Name() != "session.yml" {
+			return nil
+		}
+		parentDir := filepath.Base(filepath.Dir(path))
+		if parentDir == sessionID {
+			dirPath = filepath.Dir(path)
+			return filepath.SkipAll
+		}
+		return nil
+	})
 	if dirPath == "" {
 		return nil
 	}
-
-	_ = os.RemoveAll(dirPath)
-	return nil
+	return os.RemoveAll(dirPath)
 }
 
 // DeleteSession removes the entire session directory and all its contents.