feat: daily node restart controlled from the admin, connect timings as a default line task [CI]

Agents and Probes exit in order at a configured time (default 04:30 UTC+8, switch and time zone in the admin settings) and the service manager starts them again; a local restart_at or MOSHIRO_RESTART_AT wins. The connect kind (TCP connect and TLS handshake timings) is now a default continuous line template, with a section on the line page.

backend/src/MoShiro.Backend.Application/Agents/MoShiroFleetHooks.cs

@@ -53,11 +53,13 @@ public sealed class MoShiroNodeEventSink : INodeEventSink
     private readonly AgentService _service;
     private readonly NodeInfoService _nodes;
     private readonly ReleaseService _releases;
+    private readonly ScheduleService _schedule;
     private readonly IProbeStore _probes;
 
-    public MoShiroNodeEventSink(IAgentStore agents, AgentRuntime runtime, IEventStore events, LiveHub live, AgentService service, NodeInfoService nodes, ReleaseService releases, IProbeStore probes)
+    public MoShiroNodeEventSink(IAgentStore agents, AgentRuntime runtime, IEventStore events, LiveHub live, AgentService service, NodeInfoService nodes, ReleaseService releases, ScheduleService schedule, IProbeStore probes)
     {
         _releases = releases;
+        _schedule = schedule;
         _probes = probes;
         _nodes = nodes;
         _agents = agents;
@@ -144,6 +146,7 @@ public sealed class MoShiroNodeEventSink : INodeEventSink
                 }
 
                 await _releases.OfferToNodeAsync(id, ct);
+                await _schedule.SendToNodeAsync(id, ct);
                 break;
             case NodeEventKind.Offline:
                 _live.Publish(new NodeSignal("probe", id.Value, false, nodeEvent.AtMs));
@@ -214,6 +217,7 @@ public sealed class MoShiroNodeEventSink : INodeEventSink
         AgentRecord? after = await _agents.GetAsync(id, ct);
         _nodes.ObserveAgentInBackground(id.Value, after?.PublicHost, meta.Platform);
         await _releases.OfferToNodeAsync(id, ct);
+        await _schedule.SendToNodeAsync(id, ct);
         if (before is not null && after is not null
             && (!before.TlsSpki.AsSpan().SequenceEqual(after.TlsSpki) || before.ProbeTcpPort != after.ProbeTcpPort || !before.ProbeUdpPorts.SequenceEqual(after.ProbeUdpPorts) || before.Ipv6Supported != after.Ipv6Supported)
             && after.Status == NodeStatus.Active)