feat(dashboard): multi-agent operations feed aggregating all agent sessions

backend/Controllers/DashboardController.cs

@@ -52,36 +52,30 @@ public class DashboardController(
     }
 
     /// <summary>
-    /// Returns the latest assistant messages (operations/feed) from the Iris session.
-    /// Filtered to role == "assistant" — those are the work feed entries.
+    /// Returns the latest assistant messages aggregated from ALL agent sessions.
+    /// Events are sorted by timestamp descending (newest first).
+    /// Supports optional agent filter via ?agent= query parameter.
+    /// Falls back to Iris-only feed if multi-agent feed fails.
     /// </summary>
     [HttpGet("operations")]
-    public async Task<List<FeedEntry>> GetOperations([FromQuery] int limit = 20)
+    public async Task<List<FeedEntry>> GetOperations(
+        [FromQuery] int limit = 20,
+        [FromQuery] string? agent = null)
     {
         try
         {
-            var messages = await gateway.GetSessionHistoryAsync("iris", Math.Clamp(limit, 1, 100));
-            var feed = new List<FeedEntry>();
+            var entries = await gateway.GetAllAgentOperationsAsync(Math.Clamp(limit, 1, 100));
 
-            foreach (var msg in messages)
+            // Optional agent filter
+            if (!string.IsNullOrWhiteSpace(agent))
             {
-                if (!string.Equals(msg.Role, "assistant", StringComparison.OrdinalIgnoreCase))
-                    continue;
-
-                if (string.IsNullOrWhiteSpace(msg.Content))
-                    continue;
-
-                // Parse timestamp for display-friendly "time ago"
-                var ts = ParseTimestamp(msg.Timestamp);
-                var timeAgo = FormatTimeAgo(ts);
-
-                // Extract a short agent indicator and action from content
-                var (agent, action) = ExtractAgentAction(msg.Content);
-
-                feed.Add(new FeedEntry(agent, action, msg.Timestamp, timeAgo));
+                entries = entries
+                    .Where(e => string.Equals(e.AgentId, agent, StringComparison.OrdinalIgnoreCase)
+                             || string.Equals(e.Agent, agent, StringComparison.OrdinalIgnoreCase))
+                    .ToList();
             }
 
-            return feed;
+            return entries;
         }
         catch (Exception ex)
         {
@@ -367,55 +361,5 @@ public class DashboardController(
         t.UpdatedAt
     );
 
-    private static DateTimeOffset ParseTimestamp(string timestamp)
-    {
-        if (DateTimeOffset.TryParse(timestamp, null, System.Globalization.DateTimeStyles.None, out var dt))
-            return dt;
-        return DateTimeOffset.UtcNow;
-    }
 
-    private static string FormatTimeAgo(DateTimeOffset ts)
-    {
-        var diff = DateTimeOffset.UtcNow - ts;
-        if (diff.TotalMinutes < 1) return "just now";
-        if (diff.TotalMinutes < 60) return $"{(int)diff.TotalMinutes}m ago";
-        if (diff.TotalHours < 24) return $"{(int)diff.TotalHours}h ago";
-        if (diff.TotalDays < 7) return $"{(int)diff.TotalDays}d ago";
-        return ts.ToString("MMM dd");
-    }
-
-    private static (string Agent, string Action) ExtractAgentAction(string content)
-    {
-        // Take first line or first ~80 chars as the action summary
-        var firstLine = content.Split('\n', 2)[0].Trim();
-        var summary = firstLine.Length > 80 ? firstLine[..80] + "…" : firstLine;
-
-        // Try to identify which agent this came from
-        var agent = "Iris";
-        foreach (var marker in new[] { "**Agent:**", "**Agent:** ", "*Agent:* ", "Agent:" })
-        {
-            var idx = content.IndexOf(marker, StringComparison.OrdinalIgnoreCase);
-            if (idx >= 0)
-            {
-                var after = content[(idx + marker.Length)..].TrimStart();
-                var end = after.IndexOfAny(['\n', '\r', ',', '.']);
-                var found = end > 0 ? after[..end].Trim() : after.Split('\n', 2)[0].Trim();
-                if (!string.IsNullOrWhiteSpace(found) && found.Length < 30)
-                {
-                    agent = found;
-                    break;
-                }
-            }
-        }
-
-        // Try to find agent name at the start in brackets like [Agent: Iris]
-        if (agent == "Iris")
-        {
-            var bracketMatch = System.Text.RegularExpressions.Regex.Match(content, @"\[Agent:\s*([^\]]+)\]");
-            if (bracketMatch.Success)
-                agent = bracketMatch.Groups[1].Value.Trim();
-        }
-
-        return (agent, summary);
-    }
 }