feat(devices): 设备默认名「平台简写·主机名」+ 支持重命名(1.0.13)

① 默认名:DeviceIdentity 改「平台简写(Win/Mac/Linux/iOS/Andr)·主机名」,主机名截
   到 8、总长≈12(替代裸主机名,更短)。
② 重命名:新端点 POST /v1/me/devices/{uuid}/rename(Service.RenameDevice 校验归属+
   截 64);store.UpdateName;客户端 account_api.renameDevice + provider.rename +
   「我的设备」⋯ 菜单加「重命名」+ 输入弹窗;l10n(zh/en)。
③ 版本 1.0.13。
测试:server RenameDevice(归属/空名/404)+ 客户端 rename widget;全量 go/flutter 绿。

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

server/internal/devices/handler.go

@@ -28,6 +28,7 @@ func (h *Handler) RegisterRoutes(r chi.Router) {
 	r.Get("/devices", h.ListDevices)
 	r.Delete("/devices/{id}", h.DeleteDevice)
 	r.Post("/devices/{id}/logout", h.ForceLogout)
+	r.Post("/devices/{id}/rename", h.RenameDevice)
 }
 
 type listDevicesResponse struct {
@@ -87,3 +88,25 @@ func (h *Handler) ForceLogout(w http.ResponseWriter, r *http.Request) {
 
 	w.WriteHeader(http.StatusNoContent)
 }
+
+// RenameDevice handles POST /v1/me/devices/{id}/rename — set a device's name.
+func (h *Handler) RenameDevice(w http.ResponseWriter, r *http.Request) {
+	userID, ok := auth.UserIDFromContext(r.Context())
+	if !ok {
+		apierr.WriteJSON(w, http.StatusUnauthorized, apierr.ErrUnauthorized)
+		return
+	}
+	var req struct {
+		Name string `json:"name"`
+	}
+	if err := json.NewDecoder(http.MaxBytesReader(w, r.Body, 1<<14)).Decode(&req); err != nil {
+		apierr.WriteJSON(w, http.StatusBadRequest, apierr.ErrBadRequest)
+		return
+	}
+	deviceUUID := chi.URLParam(r, "id")
+	if apiErr := h.svc.RenameDevice(r.Context(), userID, deviceUUID, req.Name); apiErr != nil {
+		apierr.WriteJSON(w, StatusForError(apiErr), apiErr)
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}

server/internal/devices/service.go

@@ -312,6 +312,36 @@ func (svc *Service) ForceLogout(ctx context.Context, userID int64, deviceUUID st
 	return nil
 }
 
+// RenameDevice sets a device's display name (ownership-checked). Empty name →
+// 400; name is trimmed + truncated to 64 runes.
+//
+//   - device not found            → 404
+//   - device owned by another user → 403
+func (svc *Service) RenameDevice(ctx context.Context, userID int64, deviceUUID, rawName string) *apierr.Error {
+	uuid := strings.TrimSpace(deviceUUID)
+	name := strings.TrimSpace(rawName)
+	if uuid == "" || name == "" {
+		return apierr.ErrBadRequest
+	}
+	if r := []rune(name); len(r) > 64 {
+		name = string(r[:64])
+	}
+	dev, err := svc.store.FindByUUID(ctx, uuid)
+	if err != nil {
+		return apierr.ErrInternal
+	}
+	if dev == nil {
+		return apierr.ErrNotFound
+	}
+	if dev.UserID != userID {
+		return apierr.ErrForbidden
+	}
+	if err := svc.store.UpdateName(ctx, dev.ID, name); err != nil {
+		return apierr.ErrInternal
+	}
+	return nil
+}
+
 // revokeDeviceSessions marks all of a device's sessions revoked and drops their
 // refresh JTIs from the Redis whitelist. Best-effort.
 func (svc *Service) revokeDeviceSessions(ctx context.Context, userID, deviceID int64) {

server/internal/devices/store.go

@@ -179,6 +179,14 @@ func nullStr(s string) any {
 	return s
 }
 
+// UpdateName sets a device's display name (non-tx). Used by rename.
+func (s *Store) UpdateName(ctx context.Context, deviceID int64, name string) error {
+	if _, err := s.db.ExecContext(ctx, `UPDATE devices SET name=? WHERE id=?`, name, deviceID); err != nil {
+		return fmt.Errorf("store.UpdateName: %w", err)
+	}
+	return nil
+}
+
 // deleteDeviceTx hard-deletes a device row inside tx.
 func (s *Store) deleteDeviceTx(ctx context.Context, tx *sql.Tx, deviceID int64) error {
 	if _, err := tx.ExecContext(ctx, `DELETE FROM devices WHERE id=?`, deviceID); err != nil {

server/internal/store/devices_rename_test.go

@@ -0,0 +1,41 @@
+package store_test
+
+import (
+	"context"
+	"testing"
+
+	"github.com/wangjia/pangolin/server/internal/devices"
+)
+
+func TestSQLite_RenameDevice(t *testing.T) {
+	ctx := context.Background()
+	db := openSQLite(t)
+	if _, err := db.Exec(`INSERT INTO users (id,uuid,email,pw_hash,dp_uuid,status) VALUES (1,'u1','u1@e','h','dp1','active'),(2,'u2','u2@e','h','dp2','active')`); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := db.Exec(`INSERT INTO devices (id,uuid,user_id,name,platform) VALUES (10,'devA',1,'Win·old','windows'),(30,'devC',2,'C','ios')`); err != nil {
+		t.Fatal(err)
+	}
+	svc := devices.NewService(devices.NewStore(db), nil)
+
+	if e := svc.RenameDevice(ctx, 1, "devA", "我的台式机"); e != nil {
+		t.Fatalf("rename: %v", e)
+	}
+	var name string
+	db.QueryRow(`SELECT name FROM devices WHERE id=10`).Scan(&name)
+	if name != "我的台式机" {
+		t.Fatalf("name = %q, want 我的台式机", name)
+	}
+	// 空名 → 400
+	if e := svc.RenameDevice(ctx, 1, "devA", "   "); e == nil {
+		t.Fatal("empty name should fail")
+	}
+	// 他人设备 → 403
+	if e := svc.RenameDevice(ctx, 1, "devC", "x"); e == nil {
+		t.Fatal("renaming other user's device should fail")
+	}
+	// 不存在 → 404
+	if e := svc.RenameDevice(ctx, 1, "nope", "x"); e == nil {
+		t.Fatal("unknown device should fail")
+	}
+}