Fix: Add -admin.grpc flag to worker for explicit gRPC port (#7926) (#7927)

* Fix: Add -admin.grpc flag to worker for explicit gRPC port configuration

* Fix(helm): Add adminGrpcServer to worker configuration

* Refactor: Support host:port.grpcPort address format, revert -admin.grpc flag

* Helm: Conditionally append grpcPort to worker admin address

* weed/admin: fix "send on closed channel" panic in worker gRPC server

Make unregisterWorker connection-aware to prevent closing channels
belonging to newer connections.

* weed/worker: improve gRPC client stability and logging

- Fix goroutine leak in reconnection logic
- Refactor reconnection loop to exit on success and prevent busy-waiting
- Add session identification and enhanced logging to client handlers
- Use constant for internal reset action and remove unused variables

* weed/worker: fix worker state initialization and add lifecycle logs

- Revert workerState to use running boolean correctly
- Prevent handleStart failing by checking running state instead of startTime
- Add more detailed logs for worker startup events

weed/worker/worker.go

@@ -195,7 +195,7 @@ func NewWorker(config *types.WorkerConfig) (*Worker, error) {
 
 func (w *Worker) managerLoop() {
 	w.state = &workerState{
-		startTime:    time.Now(),
+		running:      false,
 		stopChan:     make(chan struct{}),
 		currentTasks: make(map[string]*types.TaskInput),
 	}
@@ -428,6 +428,7 @@ func (w *Worker) Start() error {
 
 // Start starts the worker
 func (w *Worker) handleStart(cmd workerCommand) {
+	glog.Infof("Worker %s handleStart called", w.id)
 	if w.state.running {
 		cmd.resp <- fmt.Errorf("worker is already running")
 		return