v0.15.7: Fix action routing for v4, WS error handling, stable nodes panel

Action routing:
- Button clicks now route through PA→Expert in v4 (was missing has_pa check)
- Previously crashed with KeyError on missing thinker node

WS error handling:
- Exceptions in WS handler caught and logged, not crash
- Frontend receives error HUD event instead of disconnect
- Prevents 1006 reconnect loops on action errors

Nodes panel:
- Fixed pipeline order (no re-sorting on events)
- Deduplicated node names (pa_v1→pa, expert_eras→eras)
- Normalized names in state tracker

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

agent/api.py

@@ -153,12 +153,20 @@ def register_routes(app):
                 msg = json.loads(data)
                 # Always use current runtime (may change after graph switch)
                 rt = _active_runtime or runtime
-                if msg.get("type") == "action":
-                    await rt.handle_action(msg.get("action", "unknown"), msg.get("data"))
-                elif msg.get("type") == "cancel_process":
-                    rt.process_manager.cancel(msg.get("pid", 0))
-                else:
-                    await rt.handle_message(msg.get("text", ""), dashboard=msg.get("dashboard"))
+                try:
+                    if msg.get("type") == "action":
+                        await rt.handle_action(msg.get("action", "unknown"), msg.get("data"))
+                    elif msg.get("type") == "cancel_process":
+                        rt.process_manager.cancel(msg.get("pid", 0))
+                    else:
+                        await rt.handle_message(msg.get("text", ""), dashboard=msg.get("dashboard"))
+                except Exception as e:
+                    import traceback
+                    log.error(f"[ws] handler error: {e}\n{traceback.format_exc()}")
+                    try:
+                        await ws.send_text(json.dumps({"type": "hud", "node": "runtime", "event": "error", "detail": str(e)[:200]}))
+                    except Exception:
+                        pass
         except WebSocketDisconnect:
             if _active_runtime:
                 _active_runtime.detach_ws()

agent/frame_engine.py

@@ -523,7 +523,7 @@ class FrameEngine:
             return self._make_result(result)
 
         # Complex action — needs full pipeline
-        self._end_frame(rec, output_summary="no local handler", route="director/thinker")
+        self._end_frame(rec, output_summary="no local handler", route="pa/director/thinker")
 
         action_desc = f"ACTION: {action}"
         if data:
@@ -535,7 +535,9 @@ class FrameEngine:
             analysis=InputAnalysis(intent="action", topic=action, complexity="simple"),
             source_text=action_desc)
 
-        if self.has_director:
+        if self.has_pa:
+            return await self._run_expert_pipeline(command, mem_ctx, dashboard)
+        elif self.has_director:
             return await self._run_director_pipeline(command, mem_ctx, dashboard)
         else:
             return await self._run_thinker_pipeline(command, mem_ctx, dashboard)

static/js/awareness.js

@@ -9,15 +9,21 @@ let _sensorReadings = {};
 // --- Node state tracker ---
 const _nodeState = {};  // { nodeName: { model, tokens, maxTokens, fillPct, lastEvent, lastDetail, status, toolCalls, startedAt } }
 
+// Normalize node names to avoid duplicates (pa_v1→pa, expert_eras→eras, etc.)
+function _normName(name) {
+  return name.replace('_v1', '').replace('_v2', '').replace('expert_', '');
+}
+
 function _getNode(name) {
-  if (!_nodeState[name]) {
-    _nodeState[name] = {
+  const key = _normName(name);
+  if (!_nodeState[key]) {
+    _nodeState[key] = {
       model: '', tokens: 0, maxTokens: 0, fillPct: 0,
       lastEvent: '', lastDetail: '', status: 'idle',
       toolCalls: 0, lastTool: '',
     };
   }
-  return _nodeState[name];
+  return _nodeState[key];
 }
 
 export function updateNodeFromHud(node, event, data) {
@@ -74,15 +80,23 @@ export function updateNodeFromHud(node, event, data) {
   renderNodes();
 }
 
+// Fixed pipeline order — no re-sorting
+// Fixed pipeline order using normalized names
+const PIPELINE_ORDER = ['input', 'pa', 'director', 'eras', 'plankiste',
+  'thinker', 'interpreter', 'output', 'memorizer', 'ui', 'sensor'];
+
 function renderNodes() {
   const el = document.getElementById('node-metrics');
-  if (!el) { console.warn('[nodes] #node-metrics not found'); return; }
+  if (!el) return;
 
-  // Sort: active nodes first, then by name
-  const statusOrder = { thinking: 0, tool: 0, streaming: 0, planned: 1, done: 2, idle: 3 };
-  const sorted = Object.entries(_nodeState)
-    .filter(([name]) => name !== 'runtime' && name !== 'frame_engine')
-    .sort((a, b) => (statusOrder[a[1].status] || 3) - (statusOrder[b[1].status] || 3));
+  const entries = Object.entries(_nodeState)
+    .filter(([name]) => name !== 'runtime' && name !== 'frame_engine');
+
+  const sorted = entries.sort((a, b) => {
+    const ia = PIPELINE_ORDER.indexOf(a[0]);
+    const ib = PIPELINE_ORDER.indexOf(b[0]);
+    return (ia === -1 ? 99 : ia) - (ib === -1 ? 99 : ib);
+  });
 
   let html = '';
   for (const [name, n] of sorted) {