feat: @uncaged/pulse-openclaw — OpenClaw adapter package (closes #40)

* feat: @uncaged/pulse-oc — OpenClaw adapter package (closes #40)

- Extract gateway-health & llm-health watchers from core to pulse-oc
- Add gateway-health-guard rule and archive-sessions executor
- Update CI, README, CONTRIBUTING for the new package
- Fix E2E tests to use core ESSENTIAL_PROCESSES after openclaw removal

Made-with: Cursor

* feat: @uncaged/pulse-openclaw — OpenClaw adapter package (closes #40)

* chore: rename pulse-oc → pulse-openclaw

Made-with: Cursor

---------

Co-authored-by: 小橘 <xiaoju@shazhou.work>

README.md

@@ -47,6 +47,7 @@ Percept 层（vitals.db）               Understand + Execute 层（events.db）
 | 包 | 说明 | npm |
 |---|---|---|
 | `@uncaged/pulse` | 核心引擎 + 保命层 + watchers | [![npm](https://img.shields.io/npm/v/@uncaged/pulse)](https://www.npmjs.com/package/@uncaged/pulse) |
+| `@uncaged/pulse-openclaw` | OpenClaw 适配器（Gateway/LLM watchers + rules + executors） | [![npm](https://img.shields.io/npm/v/@uncaged/pulse-openclaw)](https://www.npmjs.com/package/@uncaged/pulse-openclaw) |
 | `@uncaged/pulse-cursor` | Cursor Agent CLI executor 适配器 | [![npm](https://img.shields.io/npm/v/@uncaged/pulse-cursor)](https://www.npmjs.com/package/@uncaged/pulse-cursor) |
 | `@uncaged/upulse` | CLI：daemon 管理、staging/promote/rollback | [![npm](https://img.shields.io/npm/v/@uncaged/upulse)](https://www.npmjs.com/package/@uncaged/upulse) |
 
@@ -124,14 +125,13 @@ Watcher 持续采集写 vitals，唤醒判定看最近 1 分钟窗口（~12 条
 
 ### 保命层（P0 Survival）
 
-5 个内置 Watcher + 7 个保命 Rule，零 LLM 零网络依赖：
+4 个内置 Watcher + 7 个保命 Rule，零 LLM 零网络依赖：
 
 **Watchers：**
 - `system-resource` — CPU/内存/磁盘/swap
 - `process-alive` — 关键进程存活
 - `network` — DNS + HTTP 出站
 - `error-log` — 日志关键词匹配
-- `llm-health` — 双层探针（轻量 5s + 深度 60s）
 
 **Rules（洋葱顺序，最外层先执行）：**
 1. `panicRollback` — 保命动作连续失败 → 紧急回滚