补 wsClientCore 并发测试 + close() 防 nil conn 守卫

Result: {"status":"keep","total_issues":8,"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":77,"tsc_errors":0,"vitest_failed":0,"vitest_total":126}

.auto/log.jsonl

@@ -39,3 +39,4 @@
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 {"run":39,"commit":"be5d067","metric":8,"metrics":{"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":76,"tsc_errors":0,"vitest_failed":0,"vitest_total":126},"status":"keep","description":"auth_cache negative 缓存加上限防 DoS + relay/flared 删除重复 authenticateAccessToken 改用 agent 共享缓存版","timestamp":1787708052241,"segment":0,"confidence":null,"asi":{"hypothesis":"negative cache 无上限可被伪造 token 撑爆内存；relay/flared 与 agent 三份重复的 authenticateAccessToken","next_action_hint":"继续扫其他无界缓存/限流缺口","result":"metric 持平 8（8 个均为 deliberate keeper），安全修复不计入 metric","security":"negative cache 加 10k 上限+过期清理；relay/flared 复用 agent.AuthenticateAccessToken（共享 2min 正/10min 负缓存，DB 压力下降）"}}
 {"run":40,"commit":"0dd2cf9","metric":8,"metrics":{"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":77,"tsc_errors":0,"vitest_failed":0,"vitest_total":126},"status":"keep","description":"websocket 三 hub 去重：抽 runWritePump 共享写泵 + 合并 agent 广播函数为 broadcastAgent","timestamp":1787708370650,"segment":0,"confidence":null,"asi":{"hypothesis":"三份 hub 的 writePump 完全重复（仅日志前缀不同），readPump 已有 runReadPump 抽取先例；BroadcastWAFIPGroups/BroadcastActiveConfig 复制粘贴","next_action_hint":"close() 3 份小重复可再合并但收益低；继续找其他模块的重复/无界增长","result":"metric 持平 8，全测试绿","refactor":"新增 websocket/write_pump.go runWritePump（对齐 runReadPump 模式），agent/relay/flared writePump 改委托；agent_hub 抽 broadcastAgent 合并两个广播函数"}}
+{"run":41,"commit":"efd8268","metric":8,"metrics":{"eslint_errors":0,"eslint_problems":0,"eslint_warnings":0,"golint_canonicalheader":0,"golint_errname":0,"golint_errorlint":1,"golint_exhaustive":0,"golint_forcetypeassert":0,"golint_gosec":0,"golint_intrange":0,"golint_modernize":3,"golint_nilnil":3,"golint_perfsprint":0,"golint_prealloc":0,"golint_recvcheck":1,"golint_test_testifylint":0,"golint_test_thelper":0,"golint_test_total":0,"golint_test_usetesting":0,"golint_total":8,"golint_usestdlibvars":0,"golint_vetx_total":0,"golint_wastedassign":0,"measure_s":75,"tsc_errors":0,"vitest_failed":0,"vitest_total":126},"status":"keep","description":"websocket 三 client 结构体去重：嵌入共享 wsClientCore（close/enqueue 单份实现）","timestamp":1787708975609,"segment":0,"confidence":null,"asi":{"hypothesis":"agentClient/relayClient/flaredClient 字段与 close/enqueue 完全相同，用组合（嵌入 wsClientCore）消除三份重复","next_action_hint":"代码库经 40 轮已高度收敛；后续可周期性跑 go test -race 全量","result":"metric 持平 8，全测试绿；净减 ~60 行重复代码","refactor":"新增 websocket/client_core.go：wsClientCore(nodeID/conn/send/done/once) + 共享 close/enqueue；三个 client 结构体改为嵌入"}}

internal/apps/openflare/websocket/client_core.go

@@ -27,7 +27,9 @@ func (c *wsClientCore) close() {
 	}
 	c.once.Do(func() {
 		close(c.done)
-		_ = c.conn.Close()
+		if c.conn != nil {
+			_ = c.conn.Close()
+		}
 	})
 }
 

internal/apps/openflare/websocket/client_core_test.go

@@ -0,0 +1,57 @@
+// Copyright 2026 Arctel.net
+// SPDX-License-Identifier: Apache-2.0
+
+package websocket
+
+import (
+	"sync"
+	"testing"
+)
+
+func TestWSClientCoreCloseIsIdempotent(t *testing.T) {
+	core := &wsClientCore{
+		send: make(chan Message, 1),
+		done: make(chan struct{}),
+	}
+	var wg sync.WaitGroup
+	for range 8 {
+		wg.Add(1)
+		go func() {
+			defer wg.Done()
+			core.close()
+		}()
+	}
+	wg.Wait()
+	select {
+	case <-core.done:
+	default:
+		t.Fatal("close did not signal done")
+	}
+}
+
+func TestWSClientCoreEnqueueFailsAfterClose(t *testing.T) {
+	core := &wsClientCore{
+		send: make(chan Message, 1),
+		done: make(chan struct{}),
+	}
+	core.close()
+	if core.enqueue(Message{Type: messageTypePing}) {
+		t.Fatal("enqueue must fail after close")
+	}
+}
+
+func TestWSClientCoreEnqueueNeverBlocks(t *testing.T) {
+	core := &wsClientCore{
+		send: make(chan Message, 1), // 缓冲小于消息数，验证不阻塞
+		done: make(chan struct{}),
+	}
+	defer core.close()
+	for range 3 {
+		if !core.enqueue(Message{Type: messageTypePing}) && len(core.send) == 0 {
+			t.Fatal("enqueue failed with empty buffer")
+		}
+	}
+	if core.enqueue(Message{Type: messageTypePing}) {
+		t.Fatal("enqueue must fail when buffer full")
+	}
+}