turn on thread watchdog

src/WorkerThread.cpp

@@ -17,8 +17,15 @@ void Thread::callRun(void *_this)
 
 void WorkerThread::doRun()
 {
+    startWatchdog();
+
     while (!wantExit) {
+        stopWatchdog();
         block();
+        startWatchdog();
+
+        // no need - startWatchdog is guaranteed to give us one full watchdog interval
+        // serviceWatchdog(); // Let our loop worker have one full watchdog interval (at least) to run
 
 #ifdef DEBUG_STACK
         static uint32_t lastPrint = 0;
@@ -30,6 +37,8 @@ void WorkerThread::doRun()
 
         loop();
     }
+
+    stopWatchdog();
 }
 
 /**