feat(plugin page): wire up screenshots + add compress script

- Update file paths to match provided .jpg captures (panel-overview, pair-qr,
  launch-option, entry-live)
- Flip HAS_SCREENSHOT for the 4 available ones; keep recording + session-form
  as placeholders for now (user will add in-game/phone photos later)
- entry-live.png → entry-live.jpg (smaller, still good quality at 1400px)
- All images compressed: Deck shots 1000px / q78, web shot 1400px / q78
- Add scripts/compress-screenshots.sh for re-compressing anytime

scripts/compress-screenshots.sh

@@ -0,0 +1,64 @@
+#!/usr/bin/env bash
+# Compress and resize images in apps/web/public/plugin/
+# Targets a max width suitable for web display and re-encodes as JPEG.
+#
+# Usage:
+#   ./scripts/compress-screenshots.sh                # default: 1000px Deck / 1400px web
+#   ./scripts/compress-screenshots.sh 800 1200       # custom max widths
+#
+# Requires: macOS (uses sips)
+set -euo pipefail
+
+cd "$(dirname "$0")/.."
+
+DECK_MAX="${1:-1000}"   # Steam Deck screenshots are 1280×800
+WEB_MAX="${2:-1400}"    # Web/desktop screenshots are wider
+QUALITY=78
+
+DIR="apps/web/public/plugin"
+if [[ ! -d "$DIR" ]]; then
+  echo "✗ $DIR not found" >&2
+  exit 1
+fi
+
+shopt -s nullglob
+files=("$DIR"/*.jpg "$DIR"/*.jpeg "$DIR"/*.png)
+if [[ ${#files[@]} -eq 0 ]]; then
+  echo "No images in $DIR"
+  exit 0
+fi
+
+# Pick the right max width based on aspect ratio: 16:10 (Deck-ish) gets DECK_MAX,
+# anything wider gets WEB_MAX.
+compress() {
+  local f="$1"
+  local w h max
+  w=$(sips -g pixelWidth "$f" 2>/dev/null | awk '/pixelWidth/ {print $2}')
+  h=$(sips -g pixelHeight "$f" 2>/dev/null | awk '/pixelHeight/ {print $2}')
+  if [[ -z "$w" || -z "$h" ]] || [[ "$h" -eq 0 ]]; then
+    echo "  skip $f (can't read dimensions)"
+    return
+  fi
+  # aspect ratio = w/h. 16:10 = 1.6
+  local ratio
+  ratio=$(awk -v w="$w" -v h="$h" 'BEGIN { printf "%.2f", w/h }')
+  if awk -v r="$ratio" 'BEGIN { exit !(r <= 1.7) }'; then
+    max="$DECK_MAX"
+  else
+    max="$WEB_MAX"
+  fi
+
+  local before after pct
+  before=$(stat -f%z "$f")
+  sips -s format jpeg -s formatOptions "$QUALITY" -Z "$max" "$f" --out "${f}.tmp" >/dev/null 2>&1
+  mv "${f}.tmp" "${f%.png}.jpg"
+  after=$(stat -f%z "${f%.png}.jpg")
+  pct=$(awk -v a="$after" -v b="$before" 'BEGIN { printf "%.0f", (a-b)/b*100 }')
+  echo "  ${f##*/}  $(numfmt --to=iec "$before" 2>/dev/null || echo ${before}B) → $(numfmt --to=iec "$after" 2>/dev/null || echo ${after}B) (${pct}%)"
+}
+
+echo "Compressing images in $DIR (Deck ≤ ${DECK_MAX}px, Web ≤ ${WEB_MAX}px, q=${QUALITY})…"
+for f in "${files[@]}"; do
+  compress "$f"
+done
+echo "✓ Done"