feat(tally): friendlier option labels + dev-tally only counts matching target (#1340)

Rename /tally-claim and /tally-transfer options to username/squadron with
clearer descriptions. Fix /dev-tally to only apply a win/loss when the
passed username/squadron actually matches what the VC is tracking, instead
of bumping any active tally.

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>

BOT/locales/en.json

@@ -852,8 +852,8 @@
       "description_claim": "Track a live SQB scoreline on your current voice channel",
       "description_transfer": "Transfer the active voice-channel tally to a different player",
       "description_wipe": "Clear the active tally on your current voice channel",
-      "ign": "The player IGN to track",
-      "squadron_short": "The squadron short name to track",
+      "username": "Username",
+      "squadron": "Squadron Name (like DSPL)",
       "result_win": "Win",
       "result_loss": "Loss",
       "result_draw": "Draw",