有新进展，追加log信息，准备尝试定位

internal/process/manager.go

@@ -838,6 +838,7 @@ func (pm *ProcessManager) computeState(pid int, result PortCheckResult) ProcessS
 
 	// 2. 进程不存在
 	if !alive {
+		log.Printf("[DEBUG] computeState: alive=false, pid=%d, expectedStop=%v, exitCode=%d", pid, pm.expectedStop, exitCode)
 		if pm.expectedStop {
 			state.Phase = PhaseStopped
 			return state
@@ -859,6 +860,7 @@ func (pm *ProcessManager) computeState(pid int, result PortCheckResult) ProcessS
 
 	// 3. 启动超时
 	if time.Since(pm.startTime) > StartupTimeout && pm.currentPhase != PhaseReloading {
+		log.Printf("[DEBUG] computeState: 启动超时, startTime=%v, elapsed=%v", pm.startTime, time.Since(pm.startTime))
 		state.Error = fmt.Sprintf("启动超时 (超过 %v)", StartupTimeout)
 		if portErr != nil {
 			state.Error += ": " + portErr.Error()
@@ -883,6 +885,7 @@ func (pm *ProcessManager) computeState(pid int, result PortCheckResult) ProcessS
 
 	// 5. 端口就绪，检查归属
 	if portPID > 0 && pid > 0 && portPID != pid {
+		log.Printf("[DEBUG] computeState: 端口冲突, portPID=%d, pid=%d", portPID, pid)
 		// 端口被其他进程占用 → CONFLICT
 		state.Phase = PhaseConflict
 		state.Error = fmt.Sprintf("端口 %d 被进程 %d (%s) 占用，与 PID 文件 %d 不一致",