Fix held card displacement in landscape and tooltip crash

The turn pulse shake was targeting .discard-stack, which is an ancestor of
#held-card-floating. A CSS transform on any ancestor breaks position:fixed,
causing the held card to render far from the deck area. Now target #discard
directly instead.

Also fix duplicate getCardPointValue methods — the 3-arg scoring version
shadowed the 1-arg tooltip version, leaving cardValues undefined on hover.

Add staging deploy script (rsync working tree, no git pull needed).

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

scripts/deploy-staging.sh

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+
+DROPLET="root@129.212.150.189"
+REMOTE_DIR="/opt/golfgame"
+
+echo "Syncing to staging ($DROPLET)..."
+rsync -az --delete \
+    --exclude='.git' \
+    --exclude='__pycache__' \
+    --exclude='node_modules' \
+    --exclude='.env' \
+    --exclude='internal/' \
+    server/ "$DROPLET:$REMOTE_DIR/server/"
+rsync -az --delete \
+    --exclude='.git' \
+    --exclude='__pycache__' \
+    --exclude='node_modules' \
+    client/ "$DROPLET:$REMOTE_DIR/client/"
+
+echo "Rebuilding app container..."
+ssh $DROPLET "cd $REMOTE_DIR && docker compose -f docker-compose.staging.yml up -d --build app"
+echo "Staging deploy complete."