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>

app_state.py

@@ -8,7 +8,7 @@ so later rebinding would only ever be seen by the module that did it.
 import configparser
 import os
 
-VERSION = "0.0.0.095"
+VERSION = "0.0.0.096"
 PROPERTIES_FILE = os.path.join(os.path.dirname(os.path.abspath(__file__)), "editor.properties")
 DEFAULT_GRID_SIZE = 10
 DEFAULT_ADD_TIMESTAMP = True