Add deploy/ with nginx config and web deploy script

nginx-waste.conf: serve web/dist/ at root, proxy /ws to anchor (port
8080), SPA fallback for clean invite URLs, immutable cache for assets.

deploy-web.sh: build + rsync to anchor host, skip config.js so the
host's runtime config is not clobbered.

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

deploy/deploy-web.sh

@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+# Deploy the web UI to the anchor host.
+# Usage: ./deploy/deploy-web.sh [user@host]
+#
+# Builds web/dist/, syncs it to /var/www/waste-web/ on the anchor host,
+# then reloads nginx. The anchor binary and config.js are left untouched.
+
+set -euo pipefail
+
+HOST="${1:-root@waste.dev.xplwd.com}"
+REMOTE_WEB="/var/www/waste-web"
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"
+
+echo "→ Building web UI…"
+cd "$REPO_ROOT/web"
+npm ci --silent
+npm run build
+
+echo "→ Syncing dist/ to $HOST:$REMOTE_WEB/"
+rsync -az --delete \
+    --exclude='config.js' \
+    "$REPO_ROOT/web/dist/" \
+    "$HOST:$REMOTE_WEB/"
+
+echo "→ Reloading nginx…"
+ssh "$HOST" "nginx -t && systemctl reload nginx"
+
+echo "✓ Deployed to https://waste.dev.xplwd.com"