Split turn stats into mirrored per-player tables

Replace the "Selected turn" and "Whole game" tables (each with You,
Opponent and Total columns) with one table per player: yours on the
left (stat, turn, game) and the opponent's on the right, mirrored
(game, turn, stat), so whole-game numbers sit next to the turn picker.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

README.md

@@ -10,10 +10,11 @@ Two views, switched from the top bar (Ctrl+1 / Ctrl+2):
     emblems, hand/library/graveyard counts, turn timer and timeouts, land drops used/allowed, who
     was on the play, plus the match panel (turn, phase, game number, Bo3 score and draw count,
     game time).
-  - *Selected turn · Turn · Whole game*: what happened in a turn for you, your opponent and in
-    total (cards drawn, spells cast, lands played, creatures died, life gained/lost, damage,
-    discards, mills, exiles, counters, tokens, land drops). The middle panel picks the turn
-    (◀ ▶, or *Live* to follow the current one).
+  - *You · Turn · Opponent*: each player's stats for the selected turn and the whole game
+    (cards drawn, spells cast, lands played, creatures died, life gained/lost, damage, discards,
+    mills, exiles, counters, tokens, land drops). The two sides mirror each other, with the
+    whole-game column next to the middle panel, which picks the turn (◀ ▶, or *Live* to follow
+    the current one).
   - *My deck · Opponent · Preview*: remaining library with draw odds, your zones; the opponent's
     board, graveyard, exile, cards known to be in their hand or library, and every card seen this
     match; hover a card for its [Scryfall](https://scryfall.com) image.