Add workflow-status telemetry view and make panel modes on-demand

Workflow-status: a new WorkflowProgressTracker singleton taps the
suppressed dynamic-workflow subagent events (those carrying
parent_tool_use_id) into per-session telemetry without altering the
existing guard; the snapshot is serialized into the new chains.workflow_info
column on FinalizeChain (ChainId-matched so a panel member of the same
session cannot clear it) and exposed via GET /api/sessions/{id}/workflow-status
(live -> persisted -> none). The header menu gains a 'Workflow-Status' entry
with a modal that live-polls every 2s while running and self-stops on close.

Panel on-demand: Fusion/MoA is now a transient per-request multiModelMode
flag (like plan/ultracode) instead of a persisted session column. Session
settings keep only the panel members + moa_layers; the mode <select> was
removed and the composer dropdown drives the mode per request.

Docs: ARCHITECTURE.md, ARCHITECTURE_QUICK.md and README.md updated for both
features plus the already-shipped z.ai/GLM provider, GLM 5.2+ effort
passthrough, web-search-prime MCP and the ultracode toggle.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Program.cs

@@ -52,6 +52,12 @@ builder.Services.AddSingleton(authService);
 builder.Services.AddSingleton(dbService);
 builder.Services.AddSingleton(new ImageService());
 builder.Services.AddSingleton(new StreamingTracker());
+
+// Workflow-Status-Tracker (Live-Telemetrie dynamischer ultracode-Workflows). Lokale Instanz,
+// weil ClaudeCliService (befüllt) und AnthropicService (persistiert beim Finalize) DIESELBE
+// Instanz brauchen; zusätzlich als Singleton für den Status-Endpoint registriert.
+var workflowTracker = new WorkflowProgressTracker();
+builder.Services.AddSingleton(workflowTracker);
 var steeringQueue = new SteeringQueue();
 builder.Services.AddSingleton(steeringQueue);
 builder.Services.AddSingleton(new RemoteConnectionManager());
@@ -91,7 +97,8 @@ builder.Services.AddSingleton<AnthropicService>(sp =>
         serverSettings,
         vectorSearch: vectorSearchService,
         embeddingBg: embeddingBgService,
-        steeringQueue: steeringQueue);
+        steeringQueue: steeringQueue,
+        workflowTracker: workflowTracker);
     svc.SetChatService(chatService);
     return svc;
 });
@@ -127,7 +134,7 @@ builder.Services.AddHostedService<GitHubEventScannerService>(sp => sp.GetRequire
 
 // Claude CLI Service (für OAuth-basierte Chats via CLI; serverSettings für z.ai/GLM-Env)
 builder.Services.AddSingleton<ClaudeCliService>(sp =>
-    new ClaudeCliService(sp.GetRequiredService<Microsoft.Extensions.Logging.ILogger<ClaudeCliService>>(), serverSettings));
+    new ClaudeCliService(sp.GetRequiredService<Microsoft.Extensions.Logging.ILogger<ClaudeCliService>>(), serverSettings, workflowTracker));
 
 var app = builder.Build();