fix: 服务端表结构自愈(数组/非法行治愈为uuid键对象,根因修复500与重启丢数据) + 客户端快照防御

intern-log/src/sync/engine.ts

@@ -438,7 +438,9 @@ async function applySnapshot(
     const prevById = new Map(prevRows.map(r => [pkOf(t, r), r]))
     const prevByUuid = new Map(prevRows.filter(r => r.uuid).map(r => [r.uuid as string, r]))
 
-    const live: AnyRow[] = (serverTables[t] || []).filter(r => !dead.has(t + '|' + r.uuid))
+    const live: AnyRow[] = (serverTables[t] || [])
+      .filter(r => r && typeof r === 'object' && r.uuid)
+      .filter(r => !dead.has(t + '|' + r.uuid))
     // 设置表的临时键：不写回本地缓存；顺手在服务端也清掉（下一轮推送墓碑）
     const filtered = live.filter(r => !(t === 'setting' && EXCLUDE_SETTING_KEYS.has(r.key)))
     const tmpKeys = live.filter(r => t === 'setting' && EXCLUDE_SETTING_KEYS.has(r.key))