Fix DASP hostname resolution so localhost and hostnames work

The dispatch check compared the raw hostname string against the UDP
source IP, silently dropping responses when they differed (e.g.
"localhost" vs "127.0.0.1"). Resolve hostname to IP at session init.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

editor.properties

@@ -7,7 +7,7 @@ left_pane_width = 230
 trace_dasp = True
 
 [Device]
-host = 192.168.1.251
+host = 192.168.0.26
 port = 1876
 user = admin