fix: replace node-pty with child_process spawn (node-pty broken on macOS+Node22)

force redeploy

fix: fullStream 事件字段名修正（根据实际 AI SDK v6 验证）

fix: add approval:approval:readonly to settings permission guide list

fix: tool calling 修复 — 用 AI SDK tool() 包装 + 不过滤 tool 消息

fix: use tenant_access_token for approval API (not user token)

fix: 默认模型换为 Llama 4 Maverick（实测 tool_use 可靠）

fix: autoSync waits for completion instead of blind sleep, reduce sync-status polling 5s→15s

fix: delay autoSync 10s on page load, wait for sync completion instead of polling every 2s

fix: 默认模型换为 Qwen3 80B（免费+tool_use 更好）

fix: sync safety — retry failed batches, fix timestamp jump, add DB lock to prevent concurrent syncs, quickSync skips when fullSync running

feat: 重写 system prompt — 强制调工具，禁止编造

fix: Gmail sync — persist status to DB (fix GET on different serverless instance), fix processed count

fix: agent route 加 try/catch 防止 runAgent 异常直接 500

feat: use Next.js after() for background sync — POST returns immediately, sync runs in background