feat(app): redesign magazine grid, improve article views and proxy

- Redesign MagazineGrid with editorial New Yorker-inspired layout
- Simplify ArticleDetail and ArticleOverlay components
- Enhance claude-proxy with improved content extraction
- Add HTML utility for content processing
- Update NewsCard styling and chat message handling
- Clean up worktree references

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

packages/app/scripts/dev.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Start Claude proxy and Vite dev server together.
+# Both are killed when either exits or when this script receives SIGINT/SIGTERM.
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+APP_DIR="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+cleanup() {
+  # Kill all child processes
+  kill 0 2>/dev/null || true
+  wait 2>/dev/null || true
+}
+trap cleanup EXIT INT TERM
+
+# Start Claude proxy in background
+npx tsx "$APP_DIR/server/claude-proxy.ts" &
+PROXY_PID=$!
+
+# Give proxy a moment to bind port
+sleep 0.3
+
+# Start Vite dev server in foreground
+npx vite --host &
+VITE_PID=$!
+
+# Wait for either to exit — then cleanup kills both
+wait -n $PROXY_PID $VITE_PID 2>/dev/null || true