fix named pipe read (unix) & produce core:error event on error in schedule callback & fix editor traceback

res/modules/internal/stream_providers/named_pipe_unix.lua

@@ -31,7 +31,7 @@ local lib = {}
 
 function lib.read(fd, len)
     local buffer = FFI.new("uint8_t[?]", len)
-    local result = C.read(fd, buffer, len)
+    local result = tonumber(C.read(fd, buffer, len))
 
     local out = Bytearray()