feat(devices): P3 强制退出 + 清除增强(per-device 凭证吊销)

后端:新端点 POST /v1/me/devices/{uuid}/logout(ForceLogout:吊销该设备会话+
丢 Redis JTI,设备留列表)。DeleteDevice 增强:先吊销会话再删设备(FK ON DELETE
CASCADE 清理会话行)+ 按 dp_uuid 吊销数据面凭证。CredentialRevoker 接口改
per-device RevokeDevice(dpUUID),由 nodes.Service 实现(查 connect_credentials
持有节点→推 CommandTypeRevoke + 删凭证行),main 注入替 NoopRevoker;devices 注入
SessionPort/JTIRevoker。修 SQLite 跨连接死锁(会话吊销移到 delete tx 之前)。
migration 000016 sessions FK 加 ON DELETE CASCADE。
客户端:account_api.forceLogout + devicesProvider.forceLogout(UI 留 P6)。
测试:ForceLogout(吊销会话+JTI+设备保留+403/404)+ DeleteDevice(级联+按 dp_uuid
吊销);NoopRevoker 改 dp_uuid;全量 server/flutter 测试绿。

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

server/internal/nodes/service.go

@@ -1,6 +1,8 @@
 package nodes
 
 import (
+	"context"
+
 	"github.com/redis/go-redis/v9"
 
 	"github.com/wangjia/pangolin/server/internal/mtls"
@@ -54,6 +56,28 @@ func (s *Service) Store() NodeStore {
 	return s.store
 }
 
+// RevokeDevice recalls a per-device data-plane credential: it pushes a Revoke
+// command to every node currently holding the dp_uuid (so sing-box drops that
+// user) and removes the connect_credentials rows. Satisfies devices.CredentialRevoker.
+// Best-effort: a queued Push is replayed when an offline node reconnects.
+func (s *Service) RevokeDevice(ctx context.Context, dpUUID string) error {
+	if dpUUID == "" {
+		return nil
+	}
+	locs, err := s.store.NodesHoldingCredential(ctx, dpUUID)
+	if err != nil {
+		return err
+	}
+	for _, loc := range locs {
+		_ = s.hub.Push(ctx, loc.NodeUUID, &agentv1.Command{
+			Type:   agentv1.CommandTypeRevoke,
+			Revoke: &agentv1.RevokePayload{DpUUID: dpUUID},
+		})
+		_ = s.store.DeleteCredential(ctx, loc.NodeID, dpUUID)
+	}
+	return nil
+}
+
 // Load exposes the LoadCache for callers that display per-node load metrics.
 func (s *Service) Load() *LoadCache {
 	return s.load