chore: initial project import

backend/fleet/src/Fleet.Server.Abstractions/IFleetStore.cs

@@ -0,0 +1,21 @@
+using Fleet.Core;
+
+namespace Fleet.Server;
+
+/// <summary>Fleet 服务端需要的存储。产品可以自己实现（Monitor 把它放进 monitor.db）。</summary>
+public interface IFleetStore
+{
+    ValueTask<JoinTokenRecord?> FindJoinTokenAsync(ReadOnlyMemory<byte> tokenSha256, CancellationToken ct);
+
+    /// <summary>原子地把令牌使用次数加一。令牌已吊销、过期或用完时返回 false。</summary>
+    ValueTask<bool> TryConsumeJoinTokenAsync(string tokenId, long nowMs, CancellationToken ct);
+
+    ValueTask<Result<NodeRecord>> CreateNodeAsync(NewNode node, CancellationToken ct);
+
+    ValueTask<NodeRecord?> GetNodeAsync(NodeId id, CancellationToken ct);
+
+    /// <summary>按名称查找状态不是 pending 的节点（用于判断注册时的名称冲突）。</summary>
+    ValueTask<NodeRecord?> FindEstablishedNodeByNameAsync(string name, CancellationToken ct);
+
+    ValueTask UpdatePresenceAsync(NodeId id, Presence presence, CancellationToken ct);
+}