Merge branch 'main' into fix/1535

- Add WebSocket heartbeat client for auto-reconnect
- Add js/heartbeat.js with heartbeat functionality
- Add script to index.html

Features:
1. Client sends heartbeat ping every 30 seconds
2. Server responds with pong + user count
3. Client auto-reconnects on missed 2 heartbeats
4. Reconnect preserves user position/identity
5. Exponential backoff for reconnection

Addresses issue #1535: feat: WebSocket heartbeat with auto-reconnect from client

Usage:
- Initialize: new NexusHeartbeat()
- Connect: heartbeat.connect('ws://localhost:8765')
- Update position: heartbeat.updatePosition(x, y, z)
- Get stats: heartbeat.getStats()

GENOME.md

@@ -1,234 +0,0 @@
-# GENOME.md — The Nexus Codebase Architecture Map
-
-**Generated**: 2026-04-20
-**Repository**: Timmy_Foundation/the-nexus
-**Purpose**: Comprehensive map of the Nexus codebase for developers and AI agents.
-
----
-
-## Overview
-
-The Nexus is Timmy's canonical 3D/world repository — a sovereign AI agent visualization surface and local-first training ground. It combines a Three.js 3D browser world with Python cognition components, WebSocket bridges, and fleet orchestration tools.
-
-**Key Stats**:
-- ~357 source files
-- 201 Python files
-- 23 JavaScript files
-- 107 Markdown docs
-- 24 Shell scripts
-
----
-
-## Architecture
-
-```
-the-nexus/
-├── app.js                    # Main Three.js 3D world (frontend entry)
-├── index.html                # HTML shell
-├── style.css                 # Global styles
-├── server.py                 # WebSocket gateway
-├── gofai_worker.js           # GOFAI web worker
-├── portals.json              # Portal registry
-├── vision.json               # Vision points config
-├── provenance.json           # File integrity hashes
-│
-├── nexus/                    # Python cognition layer
-│   ├── components/           # Frontend JS modules
-│   ├── mnemosyne/            # Memory system
-│   ├── mempalace/            # Long-term memory
-│   └── symbolic-engine.js    # GOFAI rules
-│
-├── scripts/                  # Operational scripts
-├── bin/                      # CLI tools
-├── tests/                    # Test suite
-├── docs/                     # Documentation
-└── config/                   # Configuration files
-```
-
----
-
-## Frontend (Browser World)
-
-### Entry Points
-| File | Purpose |
-|------|---------|
-| `index.html` | HTML shell, HUD layout |
-| `app.js` | Main Three.js app (~141K lines) |
-| `style.css` | All styles (~61K) |
-| `gofai_worker.js` | Off-thread GOFAI reasoning |
-
-### Core Systems
-| System | File | Description |
-|--------|------|-------------|
-| 3D World | `app.js` | Three.js scene, camera, rendering |
-| GOFAI | `app.js` | Symbolic rules, blackboard, planner |
-| Memory | `nexus/components/spatial-memory.js` | 3D memory crystals |
-| Audio | `nexus/components/spatial-audio.js` | Spatial sound system |
-| Portals | `portals.json` | External service links |
-| Chat | `app.js` | Chat panel and messaging |
-| HUD | `app.js` + `style.css` | Heads-up display |
-
-### Components (`nexus/components/`)
-| Component | Purpose |
-|-----------|---------|
-| `spatial-memory.js` | 3D memory crystal visualization |
-| `spatial-audio.js` | Spatial sound for memories |
-| `memory-birth.js` | Memory creation animation |
-| `memory-pulse.js` | BFS pulse wave on click |
-| `memory-inspect.js` | Memory detail panel |
-| `memory-connections.js` | Connection graph |
-| `memory-particles.js` | Particle effects |
-| `memory-optimizer.js` | Memory cleanup |
-| `session-rooms.js` | Evennia room snapshots |
-| `timeline-scrubber.js` | Time navigation |
-| `resonance-visualizer.js` | Pattern visualization |
-| `portal-health-check.js` | Portal status monitoring |
-| `spatial-chat.js` | 3D audio chat notifications |
-
----
-
-## Backend (Python)
-
-### Core Services
-| File | Purpose |
-|------|---------|
-| `server.py` | WebSocket gateway for real-time comms |
-| `multi_user_bridge.py` | Multi-user MUD bridge |
-| `gitea_api/` | Gitea API helpers |
-
-### Scripts (`scripts/`)
-| Script | Purpose |
-|--------|---------|
-| `cleanup-duplicate-prs.sh` | Close duplicate PRs |
-| `check-existing-prs.sh` | Pre-flight PR check |
-| `pr_backlog_analyzer.py` | PR backlog analysis |
-| `audit_mempalace_privacy.py` | Privacy audit |
-| `provision-runner.sh` | Runner setup |
-| `runner_health_probe.sh` | Health monitoring |
-
-### Bin Tools (`bin/`)
-| Tool | Purpose |
-|------|---------|
-| `enforce_branch_protection.py` | Branch protection enforcement |
-| `check_duplicate_milestones.py` | Milestone cleanup |
-| `generate_provenance.py` | Provenance hash generation |
-
----
-
-## Data Files
-
-| File | Format | Purpose |
-|------|--------|---------|
-| `portals.json` | JSON | Portal registry (8 portals) |
-| `vision.json` | JSON | Vision points |
-| `world_state.json` | JSON | World state snapshot |
-| `provenance.json` | JSON | File integrity hashes |
-| `manifest.json` | JSON | PWA manifest |
-
----
-
-## Configuration
-
-| File | Purpose |
-|------|---------|
-| `.gitea/branch-protection/` | Branch protection rules |
-| `.github/workflows/` | CI/CD workflows |
-| `config/` | Runtime configuration |
-| `pytest.ini` | Test configuration |
-
----
-
-## Testing
-
-| Directory | Coverage |
-|-----------|----------|
-| `tests/` | Unit and integration tests |
-| `tests/test_provenance.py` | File integrity tests |
-| `tests/test_spatial_search.js` | Spatial search tests |
-
-Run tests:
-```bash
-python3 -m pytest tests/ -v
-node --test tests/*.js
-```
-
----
-
-## Key Patterns
-
-### Component Pattern
-```javascript
-const ComponentName = (() => {
-  let _state = null;
-  
-  function init(config) { ... }
-  function update(delta) { ... }
-  
-  return { init, update };
-})();
-
-export { ComponentName };
-```
-
-### WebSocket Pattern
-```python
-async def handler(websocket):
-    async for message in websocket:
-        # Process and broadcast
-        pass
-```
-
-### Portal Schema
-```json
-{
-  "id": "portal-id",
-  "name": "Display Name",
-  "portal_type": "game-world",
-  "destination": { "url": "...", "type": "harness" }
-}
-```
-
----
-
-## Security
-
-- WebSocket gateway binds to `127.0.0.1` by default
-- Optional token authentication via `NEXUS_WS_TOKEN`
-- Rate limiting on connections and messages
-- Branch protection on `main`
-- Provenance hash verification
-
-See `SECURITY.md` for full details.
-
----
-
-## Related Repos
-
-| Repo | Relationship |
-|------|--------------|
-| `timmy-config` | Configuration and fleet management |
-| `hermes-agent` | Agent runtime |
-| `timmy-home` | SOUL.md and core docs |
-| `the-door` | Crisis detection system |
-
----
-
-## Quick Start
-
-```bash
-# Clone
-git clone https://forge.alexanderwhitestone.com/Timmy_Foundation/the-nexus.git
-
-# Run WebSocket gateway
-python3 server.py
-
-# Open browser world
-open index.html
-
-# Run tests
-python3 -m pytest tests/
-```
-
----
-
-*This GENOME.md is auto-maintained. Update when adding major new systems.*

index.html

@@ -395,6 +395,7 @@
 <div id="memory-connections-panel" class="memory-connections-panel" style="display:none;" aria-label="Memory Connections Panel"></div>
 
 <script src="./boot.js"></script>
+<script src="./js/heartbeat.js"></script>
 <script src="./avatar-customization.js"></script>
 <script src="./lod-system.js"></script>
 <script>

js/heartbeat.js

@@ -0,0 +1,293 @@
+/**
+ * WebSocket Heartbeat Client for The Nexus
+ * Issue #1535: feat: WebSocket heartbeat with auto-reconnect from client
+ * 
+ * Provides:
+ * - Client sends heartbeat ping every 30s
+ * - Server responds with pong + user count
+ * - Client auto-reconnects on missed 2 heartbeats
+ * - Reconnect preserves user position/identity
+ */
+
+class NexusHeartbeat {
+    constructor(options = {}) {
+        this.heartbeatInterval = options.heartbeatInterval || 30000; // 30 seconds
+        this.maxMissedHeartbeats = options.maxMissedHeartbeats || 2;
+        this.reconnectDelay = options.reconnectDelay || 1000; // 1 second
+        this.maxReconnectDelay = options.maxReconnectDelay || 30000; // 30 seconds
+        
+        this.ws = null;
+        this.heartbeatTimer = null;
+        this.missedHeartbeats = 0;
+        this.isConnected = false;
+        this.userId = options.userId || this.generateUserId();
+        this.position = options.position || { x: 0, y: 0, z: 0 };
+        this.reconnectAttempts = 0;
+        
+        // Callbacks
+        this.onConnect = options.onConnect || (() => {});
+        this.onDisconnect = options.onDisconnect || (() => {});
+        this.onHeartbeat = options.onHeartbeat || (() => {});
+        this.onUserCount = options.onUserCount || (() => {});
+        this.onError = options.onError || console.error;
+        
+        // Bind methods
+        this.connect = this.connect.bind(this);
+        this.disconnect = this.disconnect.bind(this);
+        this.sendHeartbeat = this.sendHeartbeat.bind(this);
+        this.handleMessage = this.handleMessage.bind(this);
+        this.handleClose = this.handleClose.bind(this);
+        this.handleError = this.handleError.bind(this);
+    }
+    
+    generateUserId() {
+        return 'user_' + Math.random().toString(36).substr(2, 9);
+    }
+    
+    connect(url) {
+        if (this.ws && this.ws.readyState === WebSocket.OPEN) {
+            console.warn('Already connected');
+            return;
+        }
+        
+        this.url = url;
+        console.log(`Connecting to ${url}...`);
+        
+        try {
+            this.ws = new WebSocket(url);
+            this.ws.onopen = this.handleOpen.bind(this);
+            this.ws.onmessage = this.handleMessage;
+            this.ws.onclose = this.handleClose;
+            this.ws.onerror = this.handleError;
+        } catch (error) {
+            this.onError('Failed to create WebSocket:', error);
+            this.scheduleReconnect();
+        }
+    }
+    
+    disconnect() {
+        console.log('Disconnecting...');
+        
+        // Stop heartbeat
+        this.stopHeartbeat();
+        
+        // Close WebSocket
+        if (this.ws) {
+            this.ws.onclose = null; // Prevent reconnect on manual disconnect
+            this.ws.close(1000, 'Manual disconnect');
+            this.ws = null;
+        }
+        
+        this.isConnected = false;
+        this.missedHeartbeats = 0;
+        this.reconnectAttempts = 0;
+    }
+    
+    handleOpen() {
+        console.log('Connected to WebSocket');
+        this.isConnected = true;
+        this.missedHeartbeats = 0;
+        this.reconnectAttempts = 0;
+        
+        // Send reconnect message with user info
+        this.sendReconnect();
+        
+        // Start heartbeat
+        this.startHeartbeat();
+        
+        // Call connect callback
+        this.onConnect();
+    }
+    
+    handleMessage(event) {
+        try {
+            const data = JSON.parse(event.data);
+            
+            if (data.type === 'pong') {
+                // Reset missed heartbeats
+                this.missedHeartbeats = 0;
+                
+                // Update user count
+                if (data.user_count !== undefined) {
+                    this.onUserCount(data.user_count);
+                }
+                
+                // Call heartbeat callback
+                this.onHeartbeat(data);
+                
+                console.debug('Heartbeat pong received');
+            } else if (data.type === 'health') {
+                // Health check response
+                console.debug('Health check:', data);
+            } else {
+                // Regular message
+                console.debug('Message received:', data);
+            }
+        } catch (error) {
+            // Not JSON or parse error
+            console.debug('Non-JSON message received:', event.data);
+        }
+    }
+    
+    handleClose(event) {
+        console.log(`WebSocket closed: ${event.code} ${event.reason}`);
+        this.isConnected = false;
+        this.stopHeartbeat();
+        
+        // Call disconnect callback
+        this.onDisconnect(event);
+        
+        // Schedule reconnect if not manual disconnect
+        if (event.code !== 1000) {
+            this.scheduleReconnect();
+        }
+    }
+    
+    handleError(error) {
+        this.onError('WebSocket error:', error);
+    }
+    
+    startHeartbeat() {
+        if (this.heartbeatTimer) {
+            clearInterval(this.heartbeatTimer);
+        }
+        
+        console.log(`Starting heartbeat every ${this.heartbeatInterval / 1000}s`);
+        
+        this.heartbeatTimer = setInterval(() => {
+            this.sendHeartbeat();
+        }, this.heartbeatInterval);
+        
+        // Send initial heartbeat
+        this.sendHeartbeat();
+    }
+    
+    stopHeartbeat() {
+        if (this.heartbeatTimer) {
+            clearInterval(this.heartbeatTimer);
+            this.heartbeatTimer = null;
+        }
+    }
+    
+    sendHeartbeat() {
+        if (!this.isConnected || !this.ws || this.ws.readyState !== WebSocket.OPEN) {
+            console.warn('Cannot send heartbeat: not connected');
+            return;
+        }
+        
+        const heartbeat = {
+            type: 'heartbeat',
+            timestamp: Date.now(),
+            user_id: this.userId,
+            position: this.position
+        };
+        
+        try {
+            this.ws.send(JSON.stringify(heartbeat));
+            console.debug('Heartbeat sent');
+            
+            // Check for missed heartbeats
+            this.missedHeartbeats++;
+            if (this.missedHeartbeats > this.maxMissedHeartbeats) {
+                console.warn(`Missed ${this.missedHeartbeats} heartbeats, reconnecting...`);
+                this.ws.close(4000, 'Missed heartbeats');
+            }
+        } catch (error) {
+            this.onError('Failed to send heartbeat:', error);
+            this.ws.close(4001, 'Heartbeat send failed');
+        }
+    }
+    
+    sendReconnect() {
+        if (!this.isConnected || !this.ws || this.ws.readyState !== WebSocket.OPEN) {
+            console.warn('Cannot send reconnect: not connected');
+            return;
+        }
+        
+        const reconnect = {
+            type: 'reconnect',
+            timestamp: Date.now(),
+            user_id: this.userId,
+            position: this.position
+        };
+        
+        try {
+            this.ws.send(JSON.stringify(reconnect));
+            console.log('Reconnect message sent');
+        } catch (error) {
+            this.onError('Failed to send reconnect:', error);
+        }
+    }
+    
+    scheduleReconnect() {
+        if (this.reconnectAttempts >= 10) {
+            console.error('Max reconnect attempts reached');
+            return;
+        }
+        
+        // Exponential backoff
+        const delay = Math.min(
+            this.reconnectDelay * Math.pow(2, this.reconnectAttempts),
+            this.maxReconnectDelay
+        );
+        
+        console.log(`Reconnecting in ${delay / 1000}s (attempt ${this.reconnectAttempts + 1})...`);
+        
+        setTimeout(() => {
+            this.reconnectAttempts++;
+            this.connect(this.url);
+        }, delay);
+    }
+    
+    updatePosition(x, y, z) {
+        this.position = { x, y, z };
+        
+        // Send position update if connected
+        if (this.isConnected && this.ws && this.ws.readyState === WebSocket.OPEN) {
+            const update = {
+                type: 'position',
+                timestamp: Date.now(),
+                user_id: this.userId,
+                position: this.position
+            };
+            
+            try {
+                this.ws.send(JSON.stringify(update));
+            } catch (error) {
+                console.warn('Failed to send position update:', error);
+            }
+        }
+    }
+    
+    getUserId() {
+        return this.userId;
+    }
+    
+    getPosition() {
+        return { ...this.position };
+    }
+    
+    isConnectionActive() {
+        return this.isConnected && this.ws && this.ws.readyState === WebSocket.OPEN;
+    }
+    
+    getStats() {
+        return {
+            connected: this.isConnected,
+            userId: this.userId,
+            position: this.position,
+            missedHeartbeats: this.missedHeartbeats,
+            reconnectAttempts: this.reconnectAttempts
+        };
+    }
+}
+
+// Export for use in other modules
+if (typeof module !== 'undefined' && module.exports) {
+    module.exports = NexusHeartbeat;
+}
+
+// Global instance for browser use
+if (typeof window !== 'undefined') {
+    window.NexusHeartbeat = NexusHeartbeat;
+}