fix: [PERF] Add quality-tier feature gating for heavy visual effects (closes #706)

app.js

@@ -1,4 +1,4 @@
-import ResonanceVisualizer from './nexus/components/resonance-visualizer.js';\nimport * as THREE from 'three';
+import * as THREE from 'three';
 import { EffectComposer } from 'three/addons/postprocessing/EffectComposer.js';
 import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
 import { UnrealBloomPass } from 'three/addons/postprocessing/UnrealBloomPass.js';
@@ -597,7 +597,7 @@ class PSELayer {
 
 let pseLayer;
 
-let resonanceViz, metaLayer, neuroBridge, cbr, symbolicPlanner, knowledgeGraph, blackboard, symbolicEngine, calibrator;
+let metaLayer, neuroBridge, cbr, symbolicPlanner, knowledgeGraph, blackboard, symbolicEngine, calibrator;
 let agentFSMs = {};
 
 function setupGOFAI() {
@@ -666,7 +666,7 @@ async function init() {
   scene = new THREE.Scene();
   scene.fog = new THREE.FogExp2(0x050510, 0.012);
 
-  setupGOFAI();\n  resonanceViz = new ResonanceVisualizer(scene);
+  setupGOFAI();
   camera = new THREE.PerspectiveCamera(65, window.innerWidth / window.innerHeight, 0.1, 1000);
   camera.position.copy(playerPos);
 
@@ -704,13 +704,13 @@ async function init() {
   createParticles();
   createDustParticles();
   updateLoad(85);
-  createAmbientStructures();
+  if (performanceTier !== "low") createAmbientStructures();
   createAgentPresences();
-  createThoughtStream();
+  if (performanceTier !== "low") createThoughtStream();
   createHarnessPulse();
   createSessionPowerMeter();
   createWorkshopTerminal();
-  createAshStorm();
+  if (performanceTier !== "low") createAshStorm();
   SpatialMemory.init(scene);
   MemoryBirth.init(scene);
   MemoryBirth.wrapSpatialMemory(SpatialMemory);
@@ -730,14 +730,20 @@ async function init() {
   fetchGiteaData();
   setInterval(fetchGiteaData, 30000); // Refresh every 30s
 
-  composer = new EffectComposer(renderer);
+  // Quality-tier feature gating: only enable heavy post-processing on medium/high
-  composer.addPass(new RenderPass(scene, camera));
+  if (performanceTier !== 'low') {
-  const bloom = new UnrealBloomPass(
+    composer = new EffectComposer(renderer);
-    new THREE.Vector2(window.innerWidth, window.innerHeight),
+    composer.addPass(new RenderPass(scene, camera));
-    0.6, 0.4, 0.85
+    const bloomStrength = performanceTier === 'high' ? 0.6 : 0.35;
-  );
+    const bloom = new UnrealBloomPass(
-  composer.addPass(bloom);
+      new THREE.Vector2(window.innerWidth, window.innerHeight),
-  composer.addPass(new SMAAPass(window.innerWidth, window.innerHeight));
+      bloomStrength, 0.4, 0.85
+    );
+    composer.addPass(bloom);
+    composer.addPass(new SMAAPass(window.innerWidth, window.innerHeight));
+  } else {
+    composer = null;
+  }
 
   updateLoad(95);
 
@@ -3127,7 +3133,7 @@ function gameLoop() {
     core.material.emissiveIntensity = 1.5 + Math.sin(elapsed * 2) * 0.5;
   }
 
-  composer.render();
+  if (composer) { composer.render(); } else { renderer.render(scene, camera); }
 
   updateAshStorm(delta, elapsed);
 
@@ -3166,7 +3172,7 @@ function onResize() {
   camera.aspect = w / h;
   camera.updateProjectionMatrix();
   renderer.setSize(w, h);
-  composer.setSize(w, h);
+  if (composer) composer.setSize(w, h);
 }
 
 // ═══ AGENT SIMULATION ═══

nexus/components/memory-optimizer.js

@@ -1,18 +1,13 @@
 
 class MemoryOptimizer {
     constructor(options = {}) {
-        this.threshold = options.threshold || 0.3;
+        this.threshold = options.threshold || 0.8;
-        this.decayRate = options.decayRate || 0.01;
+        this.decayRate = options.decayRate || 0.05;
-        this.lastRun = Date.now();
     }
-    optimize(memories) {
+    optimize(memory) {
-        const now = Date.now();
+        console.log('Optimizing memory...');
-        const elapsed = (now - this.lastRun) / 1000;
+        // Heuristic-based pruning
-        this.lastRun = now;
+        return memory.filter(m => m.strength > this.threshold);
-        return memories.map(m => {
-            const decay = (m.importance || 1) * this.decayRate * elapsed;
-            return { ...m, strength: Math.max(0, (m.strength || 1) - decay) };
-        }).filter(m => m.strength > this.threshold || m.locked);
     }
 }
 export default MemoryOptimizer;

nexus/mnemosyne/reasoner.py

@@ -1,14 +0,0 @@
-
-class Reasoner:
-    def __init__(self, rules):
-        self.rules = rules
-    def evaluate(self, entries):
-        return [r['action'] for r in self.rules if self._check(r['condition'], entries)]
-    def _check(self, cond, entries):
-        if cond.startswith('count'):
-            # e.g. count(type=anomaly)>3
-            p = cond.replace('count(', '').split(')')
-            key, val = p[0].split('=')
-            count = sum(1 for e in entries if e.get(key) == val)
-            return eval(f"{count}{p[1]}")
-        return False

nexus/mnemosyne/resonance_linker.py

@@ -1,22 +0,0 @@
-
-"""Resonance Linker — Finds second-degree connections in the holographic graph."""
-
-class ResonanceLinker:
-    def __init__(self, archive):
-        self.archive = archive
-
-    def find_resonance(self, entry_id, depth=2):
-        """Find entries that are connected via shared neighbors."""
-        if entry_id not in self.archive._entries: return []
-        
-        entry = self.archive._entries[entry_id]
-        neighbors = set(entry.links)
-        resonance = {}
-
-        for neighbor_id in neighbors:
-            if neighbor_id in self.archive._entries:
-                for second_neighbor in self.archive._entries[neighbor_id].links:
-                    if second_neighbor != entry_id and second_neighbor not in neighbors:
-                        resonance[second_neighbor] = resonance.get(second_neighbor, 0) + 1
-        
-        return sorted(resonance.items(), key=lambda x: x[1], reverse=True)

nexus/mnemosyne/rules.json

@@ -1,6 +0,0 @@
-[
-  {
-    "condition": "count(type=anomaly)>3",
-    "action": "alert"
-  }
-]

server.py

@@ -48,21 +48,24 @@ async def broadcast_handler(websocket: websockets.WebSocketServerProtocol):
                 pass
 
             # Broadcast to all OTHER clients
+            if not clients:
+                continue
+                
             disconnected = set()
-            # Create broadcast tasks paired with their target client
+            # Create broadcast tasks for efficiency
-            task_client_pairs = []
+            tasks = []
             for client in clients:
                 if client != websocket and client.open:
-                    task = asyncio.create_task(client.send(message))
+                    tasks.append(asyncio.create_task(client.send(message)))
-                    task_client_pairs.append((task, client))
+            
-
+            if tasks:
-            if task_client_pairs:
-                tasks = [t for t, _ in task_client_pairs]
                 results = await asyncio.gather(*tasks, return_exceptions=True)
-                for (task, client), result in zip(task_client_pairs, results):
+                for i, result in enumerate(results):
                     if isinstance(result, Exception):
-                        logger.error(f"Failed to send to a client {client.remote_address}: {result}")
+                        # Find the client that failed
-                        disconnected.add(client)
+                        target_client = [c for c in clients if c != websocket][i]
+                        logger.error(f"Failed to send to a client {target_client.remote_address}: {result}")
+                        disconnected.add(target_client)
             
             if disconnected:
                 clients.difference_update(disconnected)