初始化 HyperNode-AI 控制面。

包含节点账本、每日清算，以及 Ubuntu 交互式部署脚本。

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

app/services/locks.py

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+"""多实例定时任务互斥。锁有过期时间，持有进程异常退出后其他实例仍能继续。"""
+
+from __future__ import annotations
+
+import os
+import socket
+from datetime import timedelta
+
+from sqlalchemy import update
+from sqlalchemy.exc import IntegrityError
+
+from app.clock import utcnow
+from app.database import session_scope
+from app.models import SchedulerLock
+
+OWNER = f"{socket.gethostname()}:{os.getpid()}"
+
+
+def acquire_lock(name: str, ttl: timedelta) -> bool:
+    now = utcnow()
+    until = now + ttl
+    try:
+        with session_scope() as session:
+            lock = session.get(SchedulerLock, name)
+            if lock is None:
+                session.add(SchedulerLock(name=name, locked_until=until, owner=OWNER))
+                try:
+                    session.flush()
+                except IntegrityError:
+                    session.rollback()
+                    return False
+                return True
+            updated = session.execute(
+                update(SchedulerLock)
+                .where(SchedulerLock.name == name)
+                .where(SchedulerLock.locked_until <= now)
+                .values(locked_until=until, owner=OWNER)
+            )
+            return updated.rowcount == 1
+    except IntegrityError:
+        return False