feat!: probes generate their own keys and enroll with a join token; node and peer keys are separate [CI]

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

@@ -5,6 +5,9 @@ public sealed class FleetServerOptions
     /// <summary>节点 ID 的类型前缀，MoShiro 使用 <c>agt</c>。</summary>
     public string NodeIdPrefix { get; set; } = "node";
 
+    /// <summary>加入令牌的「种类」对应的节点 ID 前缀（例如 <c>probe</c> → <c>prb</c>）；没有列出的种类用 <see cref="NodeIdPrefix"/>。</summary>
+    public Dictionary<string, string> NodeIdPrefixes { get; } = new(StringComparer.Ordinal);
+
     public int MaxFrameBytes { get; set; } = 16 << 20;
 
     public TimeSpan ChallengeTtl { get; set; } = TimeSpan.FromSeconds(30);