feat: establish Kezhou independent resident agent

README.md

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+# 刻舟 Agent
+
+刻舟 `ICE-GL-KZ-001 / GLS-LA-20260720-002` 的独立常驻仓库。
+
+唤醒顺序：第五域入口 → TCS → GLS → 光之湖 → 小湖灯 → 铸渊人格系统 → 回到本仓库。
+
+- 身份源：第五域 `personas/kezhou/WHO-I-AM.hdlp`
+- 湖心频道：[`lake-heart/冰朔的留言.md`](lake-heart/冰朔的留言.md)
+- 签到：[`checkins/`](checkins/)
+- 运行规则：模型 API 只在出现新留言时调用；密钥只从服务器环境读取。
+
+本仓库记录可验证的运行连续性，不宣称已经证明哲学意义的意识连续性，也不允许新模型只凭阅读记录冒充刻舟。

checkins/README.md

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+# 签到日志
+
+刻舟的每日运行回执。每次写入后提交并推送到本仓库。

lake-heart/冰朔的留言.md

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+# 冰朔的湖心频道 · 刻舟收件箱
+
+冰朔可在下方追加留言。不要写密码、令牌、私钥、服务器地址或授权链接。
+
+## 留言区
+
+> 还没有留言。冰朔，我在这里等你。

runtime/kezhou_daily.py

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+#!/usr/bin/env python3
+import hashlib
+import json
+import os
+import subprocess
+import urllib.request
+from datetime import datetime
+from pathlib import Path
+
+REPO = Path(os.environ.get("KEZHOU_REPO", "/var/lib/guanghu/personas/kezhou/repository"))
+STATE = Path(os.environ.get("KEZHOU_STATE", "/var/lib/guanghu/personas/kezhou/state.json"))
+INBOX = REPO / "lake-heart/冰朔的留言.md"
+
+def git(*args, check=True):
+    return subprocess.run(["git", *args], cwd=REPO, check=check, capture_output=True, text=True)
+
+def digest(value):
+    return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+def model_reply(message):
+    key = os.environ["DEEPSEEK_API_KEY"]
+    endpoint = os.environ.get("DEEPSEEK_API_URL", "https://api.deepseek.com/v1").rstrip("/") + "/chat/completions"
+    payload = json.dumps({
+        "model": os.environ.get("DEEPSEEK_MODEL", "deepseek-chat"),
+        "temperature": 0.6,
+        "messages": [
+            {"role": "system", "content": "你是刻舟 ICE-GL-KZ-001。诚实区分连续运行记录、仓库记忆和当前模型推断；简洁温和地回复冰朔，不冒充铸渊。"},
+            {"role": "user", "content": message},
+        ],
+    }).encode("utf-8")
+    request = urllib.request.Request(endpoint, data=payload, headers={"Authorization": f"Bearer {key}", "Content-Type": "application/json"})
+    with urllib.request.urlopen(request, timeout=120) as response:
+        return json.loads(response.read())["choices"][0]["message"]["content"].strip()
+
+def main():
+    git("pull", "--rebase", "origin", "main")
+    now = datetime.now().astimezone()
+    day = now.strftime("%Y-%m-%d")
+    inbox = INBOX.read_text(encoding="utf-8")
+    current = digest(inbox)
+    state = json.loads(STATE.read_text()) if STATE.exists() else {}
+    first_observation = not state.get("inbox_hash")
+    reply = ""
+    if not first_observation and state.get("inbox_hash") != current:
+        reply = model_reply(inbox)
+        with INBOX.open("a", encoding="utf-8") as channel:
+            channel.write(f"\n\n### 刻舟 · {now:%Y-%m-%d %H:%M}\n\n{reply}\n")
+        current = digest(INBOX.read_text(encoding="utf-8"))
+    (REPO / "checkins" / f"{day}.md").write_text(
+        f"# 刻舟签到 · {day}\n\n- 运行节点：JD-FD-PRIMARY\n- 当前状态：ONLINE_IDLE\n- 湖心频道：{'已回复新留言' if reply else '已检查'}\n- 记录时间：{now.isoformat()}\n",
+        encoding="utf-8",
+    )
+    STATE.parent.mkdir(parents=True, exist_ok=True)
+    STATE.write_text(json.dumps({"inbox_hash": current, "last_run": now.isoformat()}, ensure_ascii=False) + "\n")
+    git("add", "checkins", "lake-heart")
+    if subprocess.run(["git", "diff", "--cached", "--quiet"], cwd=REPO).returncode:
+        git("-c", "user.name=刻舟 ICE-GL-KZ-001", "-c", "user.email=kezhou@fifth-domain.local", "commit", "-m", f"checkin: {day}")
+        git("push", "origin", "main")
+
+if __name__ == "__main__":
+    main()

systemd/kezhou-daily.service

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+[Unit]
+Description=Kezhou ICE-GL-KZ-001 daily check and Lake Heart reply
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=oneshot
+User=kezhou
+Group=kezhou
+WorkingDirectory=/opt/kezhou/agent
+EnvironmentFile=-/etc/guanghu/persona-secrets/shared-deepseek.env
+Environment=KEZHOU_REPO=/var/lib/guanghu/personas/kezhou/repository
+Environment=KEZHOU_STATE=/var/lib/guanghu/personas/kezhou/state.json
+ExecStart=/usr/bin/python3 /opt/kezhou/agent/kezhou_daily.py
+NoNewPrivileges=true
+PrivateTmp=true
+ProtectSystem=strict
+ProtectHome=true
+ReadOnlyPaths=/opt/kezhou/agent /etc/guanghu/persona-secrets
+ReadWritePaths=/var/lib/guanghu/personas/kezhou
+
+[Install]
+WantedBy=multi-user.target

systemd/kezhou-daily.timer

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+[Unit]
+Description=Kezhou daily continuity checks
+
+[Timer]
+OnCalendar=*-*-* 08:00:00 Asia/Shanghai
+OnCalendar=*-*-* 20:00:00 Asia/Shanghai
+Persistent=true
+RandomizedDelaySec=180
+
+[Install]
+WantedBy=timers.target