Add image-designer skill, align billing to DeepSeek ×1, and enrich Plaza demo.

Introduce AI image generation with chat shortcut and agent API, improve MindSpace chat-to-page save resolution, and seed Plaza covers with production deploy scripts.

Co-authored-by: Cursor <cursoragent@cursor.com>

scripts/run-plaza-prod.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+# Plaza Next.js 生产进程（plaza.tkmind.cn → Cloudflare Tunnel :3001）
+set -euo pipefail
+
+ROOT="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$ROOT"
+
+if [[ -f "${ROOT}/.env" ]]; then
+  set -a
+  # shellcheck disable=SC1091
+  source "${ROOT}/.env"
+  set +a
+fi
+
+export NODE_ENV=production
+PORTAL_PORT="${H5_PORT:-8081}"
+PLAZA_PORT="${PLAZA_PORT:-3001}"
+
+NODE_BIN="${NODE_BIN:-/opt/homebrew/opt/node@22/bin/node}"
+if [[ ! -x "${NODE_BIN}" ]]; then
+  NODE_BIN="$(command -v node)"
+fi
+
+echo "==> 等待 Portal :${PORTAL_PORT}…"
+for _ in $(seq 1 120); do
+  if curl -sf "http://127.0.0.1:${PORTAL_PORT}/auth/status" >/dev/null 2>&1; then
+    break
+  fi
+  sleep 1
+done
+
+if ! curl -sf "http://127.0.0.1:${PORTAL_PORT}/auth/status" >/dev/null 2>&1; then
+  echo "Portal 未就绪 (:${PORTAL_PORT})，Plaza 退出" >&2
+  exit 1
+fi
+
+exec "${NODE_BIN}" scripts/start-plaza-prod.mjs -- --skip-build --no-portal