fix(network): prevent null multiplayer peer crashes offline/teardown and fix Nakama RPC session validation

test_suite/run_tests.sh

@@ -0,0 +1,22 @@
+#!/bin/sh
+
+END_STRING="======= TESTS END"
+PROJECT_PATH="test_suite/"
+GODOT_BIN="test_suite/bin/godot.elf"
+OUT=`$GODOT_BIN --headless --debug --path test_suite/ -s res://runner.gd`
+RUN=`echo $OUT | grep "$END_STRING"`
+RES=`echo $OUT | grep FAILURE`
+
+echo "$OUT"
+
+if [ -z "$RUN" ]; then
+	echo "Run failed!"
+	exit 1
+fi
+
+if [ -z "$RES" ]; then
+	echo "Tests passed!"
+	exit 0
+fi
+echo "Tests failed!"
+exit 1