feat: Adding French language

internal/award/wpx.go

@@ -2,6 +2,10 @@ package award
 
 import "strings"
 
+// WPXPrefix is the exported entry point for deriving a callsign's CQ WPX prefix
+// (used by contest-mode multiplier counting).
+func WPXPrefix(call string) string { return wpxPrefix(call) }
+
 // wpxPrefix derives the CQ WPX prefix from a callsign. This is an approximation
 // of the official WPX rules — good enough to count distinct prefixes worked:
 //   - standard call: letters+digits up to and including the LAST digit of the