BAPI - mapmanip insert/extract failsafe (#19466)

![image](https://github.com/Aurorastation/Aurora.3/assets/107256943/2f68fb6c-716b-46c3-81b8-b89c84db830a)

![image](https://github.com/Aurorastation/Aurora.3/assets/107256943/9c2547b2-7977-4e16-ab75-61b2f22a6afd)

!fixes https://github.com/Aurorastation/Aurora.3/issues/19456

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Co-authored-by: DreamySkrell <>

code/modules/maps/reader.dm

@@ -50,8 +50,16 @@ GLOBAL_DATUM_INIT(_preloader, /dmm_suite/preloader, new)
 /dmm_suite/proc/load_map_impl(dmm_file, x_offset, y_offset, z_offset, cropMap, measureOnly, no_changeturf, x_lower = -INFINITY, x_upper = INFINITY, y_lower = -INFINITY, y_upper = INFINITY)
 	var/tfile = dmm_file//the map file we're creating
 	if(isfile(tfile))
-		// tfile = file2text(tfile)
-		tfile = bapi_read_dmm_file("[tfile]") // `tfile` is of type `File`, this makes it into just a string of its path
+		// name/path of dmm file, new var so as to not rename the `tfile` var
+		// to maybe maintain compatibility with other codebases
+		var/tfilepath = "[tfile]"
+		// use bapi to read, parse, process, mapmanip etc
+		// this will "crash"/stacktrace on fail
+		tfile = bapi_read_dmm_file(tfilepath)
+		// if bapi for whatever reason fails and returns null
+		// try to load it the old dm way instead
+		if(!tfile)
+			tfile = file2text(tfilepath)
 
 	if(!x_offset)
 		x_offset = 1