Update TEXT param to use valueWithoutFrom for consistency

Both value and TEXT fields now contain the message body without
the FROM prefix, making the API consistent and useful for clients.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

JS8_Mainwindow/processCommandActivity.cpp

@@ -169,7 +169,7 @@ void UI_Constructor::processCommandActivity() {
                  {"CMD", QVariant(d.cmd)},
                  {"GRID", QVariant(d.grid)},
                  {"EXTRA", QVariant(d.extra)},
-                 {"TEXT", QVariant(d.text)},
+                 {"TEXT", QVariant(valueWithoutFrom)},
                  {"FREQ", QVariant(d.dial + d.offset)},
                  {"DIAL", QVariant(d.dial)},
                  {"OFFSET", QVariant(d.offset)},