fix: resolve im backend issue list regressions

server/store/store.go

@@ -1760,6 +1760,9 @@ func (groupBusinessMapper) GetSettings(tenantID types.TenantID, topic string) (*
 	var cached types.GroupSettings
 	if ok, err := GetCachedObject(tenantID, cacheNamespaceGroupSettings, topic, &cached); err != nil {
 		logs.Warn.Printf("cache group settings[%s]: read failed: %v", topic, err)
+		if delErr := DeleteCachedObject(tenantID, cacheNamespaceGroupSettings, topic); delErr != nil {
+			logs.Warn.Printf("cache group settings[%s]: delete corrupted cache failed: %v", topic, delErr)
+		}
 	} else if ok {
 		return &cached, nil
 	}
@@ -1874,15 +1877,51 @@ func (groupBusinessMapper) ListMembers(tenantID types.TenantID, topic string, op
 	if opts.Limit <= 0 || opts.Limit > 100 {
 		opts.Limit = 30
 	}
+	topic = strings.TrimSpace(topic)
+	opts.Role = strings.TrimSpace(opts.Role)
+	opts.EligibleRole = strings.TrimSpace(opts.EligibleRole)
+	opts.Query = strings.TrimSpace(opts.Query)
+	opts.Cursor = strings.TrimSpace(opts.Cursor)
+	cacheKey := groupMemberPageCacheID(topic, opts)
+	if cached, ok := GetCachedGroupMemberPage(tenantID, cacheKey); ok {
+		return cached.Items, cached.NextCursor, nil
+	}
 	tenantAdp, err := tenantBusinessAdapter(tenantID)
 	if err != nil {
 		return nil, "", err
 	}
-	return tenantAdp.TenantGroupMemberList(tenantID, strings.TrimSpace(topic), opts)
+	members, nextCursor, err := tenantAdp.TenantGroupMemberList(tenantID, topic, opts)
+	if err != nil {
+		return nil, "", err
+	}
+	CacheGroupMemberPage(tenantID, cacheKey, groupMemberPageCache{
+		Items:      members,
+		NextCursor: nextCursor,
+	})
+	return members, nextCursor, nil
 }
 
-func CacheGroupMemberPage(tenantID types.TenantID, key string, payload map[string]any) {
-	if strings.TrimSpace(key) == "" || payload == nil {
+type groupMemberPageCache struct {
+	Items      []types.GroupMember `json:"items"`
+	NextCursor string              `json:"next_cursor"`
+}
+
+func groupMemberPageCacheID(topic string, opts types.GroupMemberListOptions) string {
+	limit := opts.Limit
+	if limit <= 0 || limit > 100 {
+		limit = 30
+	}
+	return strings.TrimSpace(topic) +
+		"|role=" + strconv.Quote(strings.TrimSpace(opts.Role)) +
+		"|eligible_role=" + strconv.Quote(strings.TrimSpace(opts.EligibleRole)) +
+		"|query=" + strconv.Quote(strings.TrimSpace(opts.Query)) +
+		"|cursor=" + strconv.Quote(strings.TrimSpace(opts.Cursor)) +
+		"|limit=" + strconv.Itoa(limit) +
+		"|mentionable=" + strconv.FormatBool(opts.Mentionable)
+}
+
+func CacheGroupMemberPage(tenantID types.TenantID, key string, payload groupMemberPageCache) {
+	if strings.TrimSpace(key) == "" {
 		return
 	}
 	if err := CacheObject(tenantID, cacheNamespaceGroupPage, strings.TrimSpace(key), payload); err != nil {
@@ -1890,17 +1929,17 @@ func CacheGroupMemberPage(tenantID types.TenantID, key string, payload map[strin
 	}
 }
 
-func GetCachedGroupMemberPage(tenantID types.TenantID, key string) (map[string]any, bool) {
+func GetCachedGroupMemberPage(tenantID types.TenantID, key string) (groupMemberPageCache, bool) {
 	if strings.TrimSpace(key) == "" {
-		return nil, false
+		return groupMemberPageCache{}, false
 	}
-	var payload map[string]any
+	var payload groupMemberPageCache
 	if ok, err := GetCachedObject(tenantID, cacheNamespaceGroupPage, strings.TrimSpace(key), &payload); err != nil {
 		logs.Warn.Printf("cache group member page[%s]: read failed: %v", key, err)
 	} else if ok {
 		return payload, true
 	}
-	return nil, false
+	return groupMemberPageCache{}, false
 }
 
 func invalidateGroupMemberPages(tenantID types.TenantID, topic string) {
@@ -2113,7 +2152,11 @@ func (groupBusinessMapper) UpsertMute(tenantID types.TenantID, mute *types.Group
 	if err != nil {
 		return nil, err
 	}
-	return tenantAdp.TenantGroupMuteUpsert(tenantID, mute)
+	updated, err := tenantAdp.TenantGroupMuteUpsert(tenantID, mute)
+	if err == nil {
+		invalidateGroupMemberPages(tenantID, mute.Topic)
+	}
+	return updated, err
 }
 
 func (groupBusinessMapper) DeleteMute(tenantID types.TenantID, topic string, uid, actor types.Uid, now time.Time) error {
@@ -2124,7 +2167,11 @@ func (groupBusinessMapper) DeleteMute(tenantID types.TenantID, topic string, uid
 	if err != nil {
 		return err
 	}
-	return tenantAdp.TenantGroupMuteDelete(tenantID, strings.TrimSpace(topic), uid, actor, now)
+	if err := tenantAdp.TenantGroupMuteDelete(tenantID, strings.TrimSpace(topic), uid, actor, now); err != nil {
+		return err
+	}
+	invalidateGroupMemberPages(tenantID, topic)
+	return nil
 }
 
 func (groupBusinessMapper) ListFiles(tenantID types.TenantID, topic, fileType, query, cursor string, limit int) ([]types.GroupFile, string, error) {