feat(quic): replace probe UDP data plane with QUIC datagrams

backend/src/MoShiro.Backend.Application/Query/Lines.cs

@@ -25,7 +25,7 @@ public readonly record struct LineKey(NodeId Agent, ProbeId Probe, string IpVers
 }
 
 /// <summary>一条线路的展示视图：Agent 的状态、Probe 记录，以及这一对现在是否连着。</summary>
-public sealed record LineView(AgentView Agent, ProbeRecord Probe, string IpVersion = IpVersions.V4)
+public sealed record LineView(AgentView Agent, ProbeRecord Probe, string IpVersion = IpVersions.V4, ProbeQuicLinkSnapshot? QuicHealth = null)
 {
     public LineKey Key => new(Agent.Agent.Id, new ProbeId(Probe.Id), IpVersion);
 
@@ -40,12 +40,14 @@ public sealed class LineService
     private readonly AgentService _agents;
     private readonly IProbeStore _probes;
     private readonly LinkService _links;
+    private readonly ProbeQuicRuntime _quicRuntime;
 
-    public LineService(AgentService agents, IProbeStore probes, LinkService links)
+    public LineService(AgentService agents, IProbeStore probes, LinkService links, ProbeQuicRuntime quicRuntime)
     {
         _links = links;
         _agents = agents;
         _probes = probes;
+        _quicRuntime = quicRuntime;
     }
 
     /// <summary>所有线路：每个 Agent 和每个<b>未吊销</b>的 Probe 配成一对，只留下线路开着的（见 <see cref="LinkService"/>）；关掉的线路历史数据还在，按 id 仍然查得到。</summary>
@@ -59,10 +61,10 @@ public sealed class LineService
         {
             foreach (ProbeRecord probe in probes.Where(p => links.IsLinked(p.Id, agent.Agent.Id.Value)))
             {
-                result.Add(new LineView(agent, probe));
+                result.Add(new LineView(agent, probe, IpVersions.V4, _quicRuntime.Get(probe.Id, agent.Agent.Id.Value, IpVersions.V4)));
                 if (agent.Agent.Ipv6Host.Length > 0)
                 {
-                    result.Add(new LineView(agent, probe, IpVersions.V6));
+                    result.Add(new LineView(agent, probe, IpVersions.V6, _quicRuntime.Get(probe.Id, agent.Agent.Id.Value, IpVersions.V6)));
                 }
             }
         }
@@ -117,6 +119,6 @@ public sealed class LineService
             probe = active[0];
         }
 
-        return Result<LineView>.Ok(new LineView(agent, probe, ipVersion));
+        return Result<LineView>.Ok(new LineView(agent, probe, ipVersion, _quicRuntime.Get(probe.Id, agent.Agent.Id.Value, ipVersion)));
     }
 }