fix: Agents hartcodiert mit File-Activity-Detection

- Tools/invoke Visibility scoped auf agent:main → keine Iris-Sessions sichtbar
- Hardcoded 6 Agenten mit korrekten Models
- Activity: checkt /mnt/workspace-{id}/memory Dateizeitstempel

backend/Services/OpenClawGatewayClient.cs

@@ -87,60 +87,55 @@ public sealed class OpenClawGatewayClient(HttpClient httpClient, IConfiguration
 
     public async Task<List<DashboardAgentInfo>> GetAgentsAsync()
     {
-        var agents = new List<DashboardAgentInfo>();
-        var seenIds = new HashSet<string>(StringComparer.OrdinalIgnoreCase);
-
-        // Get sessions list
-        var sessionsResult = await InvokeToolAsync("sessions_list");
-        var sessionsData = ExtractToolData(sessionsResult);
-
-        if (sessionsData is JsonObject so)
+        // Hardcoded agent list (known from OpenClaw config).
+        // Tools/invoke visibility is restricted to agent:main scope,
+        // so we can't enumerate Iris sessions programmatically.
+        var agentDefs = new[]
         {
-            // sessions_list returns { agents: [...], sessions: {...} }
-            // Try agents array first (from gateway call)
-            if (so["agents"] is JsonArray agentArray)
+            new { Id = "iris", Name = "Iris", Model = "GPT-5.4" },
+            new { Id = "programmer", Name = "Programmer", Model = "DeepSeek V4 Flash" },
+            new { Id = "reviewer", Name = "Reviewer", Model = "DeepSeek V4 Pro" },
+            new { Id = "architekt", Name = "DevOps", Model = "DeepSeek V4 Pro" },
+            new { Id = "executor", Name = "Executor", Model = "DeepSeek V4 Flash" },
+            new { Id = "researcher", Name = "Researcher", Model = "DeepSeek V4 Pro" },
+        };
+
+        var agents = new List<DashboardAgentInfo>();
+        foreach (var def in agentDefs)
+        {
+            var isActive = false;
+            string? currentTask = null;
+
+            // Check workspace activity via file timestamps
+            var memDir = $"/mnt/workspace-{def.Id}/memory";
+            try
             {
-                foreach (var a in agentArray)
+                if (Directory.Exists(memDir))
                 {
-                    if (a is null) continue;
-                    var id = a["agentId"]?.GetValue<string>() ?? "";
-                    if (string.IsNullOrWhiteSpace(id) || !seenIds.Add(id)) continue;
-                    var name = a["name"]?.GetValue<string>() ?? id;
-                    var model = "GPT-5.4"; // default, overridden if available
-                    var isActive = false;
-                    var currentTask = (string?)null;
+                    var latestFile = Directory.GetFiles(memDir, "*", SearchOption.AllDirectories)
+                        .Select(f => new FileInfo(f))
+                        .OrderByDescending(f => f.LastWriteTimeUtc)
+                        .FirstOrDefault();
 
-                    // Check if agent has recent sessions (active indicator)
-                    if (a["sessions"] is JsonObject sess && sess["recent"] is JsonArray recent && recent.Count > 0)
+                    if (latestFile is not null)
                     {
-                        var age = recent[0]?["age"]?.GetValue<long>() ?? long.MaxValue;
-                        isActive = age < 300_000; // active if session < 5 min ago
-                        currentTask = recent[0]?["key"]?.GetValue<string>();
+                        var age = DateTime.UtcNow - latestFile.LastWriteTimeUtc;
+                        isActive = age.TotalMinutes < 15;
+                        if (isActive)
+                            currentTask = $"Modified: {latestFile.Name}";
                     }
-
-                    agents.Add(new DashboardAgentInfo(id, name, DeriveRole(id), model, isActive, currentTask));
                 }
             }
-        }
+            catch { /* workspace not mounted or inaccessible */ }
 
-        // Also get subagents list
-        var subResult = await InvokeToolAsync("subagents", new { action = "list" });
-        var subData = ExtractToolData(subResult);
-
-        if (subData is JsonArray subArray)
-        {
-            foreach (var s in subArray)
-            {
-                if (s is null) continue;
-                var id = s["id"]?.GetValue<string>() ?? s["agentId"]?.GetValue<string>() ?? "";
-                if (string.IsNullOrWhiteSpace(id) || !seenIds.Add(id)) continue;
-                var name = s["name"]?.GetValue<string>() ?? id;
-                var status = s["status"]?.GetValue<string>() ?? "";
-                var isActive = status is "active" or "running";
-                var currentTask = s["task"]?.GetValue<string>() ?? s["currentTask"]?.GetValue<string>();
-
-                agents.Add(new DashboardAgentInfo(id, name, DeriveRole(id), "", isActive, currentTask));
-            }
+            agents.Add(new DashboardAgentInfo(
+                Id: def.Id,
+                Name: def.Name,
+                Role: DeriveRole(def.Id),
+                Model: def.Model,
+                IsActive: isActive,
+                CurrentTask: currentTask
+            ));
         }
 
         return agents;