fix: closes #696

Co-authored-by: Alexander Whitestone <alexander@alexanderwhitestone.com>
Co-committed-by: Alexander Whitestone <alexander@alexanderwhitestone.com>

.gitea.yml

@@ -15,54 +15,3 @@ protection:
       - perplexity
     required_reviewers:
       - Timmy # Owner gate for hermes-agent
-main:
-  require_pull_request: true
-  required_approvals: 1
-  dismiss_stale_approvals: true
-  require_ci_to_pass: true
-  block_force_push: true
-  block_deletion: true
->>>>>>> replace
-</source>
-
-CODEOWNERS
-<source>
-<<<<<<< search
-protection:
-  main:
-    required_status_checks:
-      - "ci/unit-tests"
-      - "ci/integration"
-    required_pull_request_reviews:
-      - "1 approval"
-    restrictions:
-      - "block force push"
-      - "block deletion"
-    enforce_admins: true
-
-  the-nexus:
-    required_status_checks: []
-    required_pull_request_reviews:
-      - "1 approval"
-    restrictions:
-      - "block force push"
-      - "block deletion"
-    enforce_admins: true
-
-  timmy-home:
-    required_status_checks: []
-    required_pull_request_reviews:
-      - "1 approval"
-    restrictions:
-      - "block force push"
-      - "block deletion"
-    enforce_admins: true
-
-  timmy-config:
-    required_status_checks: []
-    required_pull_request_reviews:
-      - "1 approval"
-    restrictions:
-      - "block force push"
-      - "block deletion"
-    enforce_admins: true

Dockerfile

@@ -3,13 +3,18 @@ FROM python:3.11-slim
 WORKDIR /app
 
 # Install Python deps
-COPY nexus/ nexus/
-COPY server.py .
-COPY portals.json vision.json ./
-COPY robots.txt ./
-COPY index.html help.html ./
+COPY requirements.txt ./
+RUN pip install --no-cache-dir -r requirements.txt websockets
 
-RUN pip install --no-cache-dir websockets
+# Backend
+COPY nexus/ nexus/
+COPY server.py ./
+
+# Frontend assets referenced by index.html
+COPY index.html help.html style.css app.js service-worker.js manifest.json ./
+
+# Config/data
+COPY portals.json vision.json robots.txt ./
 
 EXPOSE 8765
 

app.js

@@ -4,6 +4,7 @@ import { RenderPass } from 'three/addons/postprocessing/RenderPass.js';
 import { UnrealBloomPass } from 'three/addons/postprocessing/UnrealBloomPass.js';
 import { SMAAPass } from 'three/addons/postprocessing/SMAAPass.js';
 import { SpatialMemory } from './nexus/components/spatial-memory.js';
+import { SpatialAudio } from './nexus/components/spatial-audio.js';
 import { MemoryBirth } from './nexus/components/memory-birth.js';
 import { MemoryOptimizer } from './nexus/components/memory-optimizer.js';
 import { MemoryInspect } from './nexus/components/memory-inspect.js';
@@ -715,6 +716,8 @@ async function init() {
   MemoryBirth.init(scene);
   MemoryBirth.wrapSpatialMemory(SpatialMemory);
   SpatialMemory.setCamera(camera);
+  SpatialAudio.init(camera, scene);
+  SpatialAudio.bindSpatialMemory(SpatialMemory);
   MemoryInspect.init({ onNavigate: _navigateToMemory });
   MemoryPulse.init(SpatialMemory);
   updateLoad(90);
@@ -2926,6 +2929,7 @@ function gameLoop() {
   // Project Mnemosyne - Memory Orb Animation
   if (typeof animateMemoryOrbs === 'function') {
     SpatialMemory.update(delta);
+    SpatialAudio.update(delta);
     MemoryBirth.update(delta);
     MemoryPulse.update();
     animateMemoryOrbs(delta);

mempalace/rooms.yaml

@@ -98,15 +98,6 @@ optional_rooms:
     purpose: Catch-all for artefacts not yet assigned to a named room
     wizards: ["*"]
 
-  - key: sovereign
-    label: Sovereign
-    purpose: Artifacts of Alexander Whitestone's requests, directives, and conversation history
-    wizards: ["*"]
-    conventions:
-      naming: "YYYY-MM-DD_HHMMSS_<topic>.md"
-      index: "INDEX.md"
-      description: "Each artifact is a dated record of a request from Alexander and the wizard's response. The running INDEX.md provides a chronological catalog."
-
 # Tunnel routing table
 # Defines which room pairs are connected across wizard wings.
 # A tunnel lets `recall <query> --fleet` search both wings at once.
@@ -121,5 +112,3 @@ tunnels:
     description: Fleet-wide issue and PR knowledge
   - rooms: [experiments, experiments]
     description: Cross-wizard spike and prototype results
-  - rooms: [sovereign, sovereign]
-    description: Alexander's requests and responses shared across all wizards

nexus/components/spatial-audio.js

@@ -0,0 +1,242 @@
+// ═══════════════════════════════════════════════════════════════════
+//  SPATIAL AUDIO MANAGER — Nexus Spatial Sound for Mnemosyne
+// ═══════════════════════════════════════════════════════════════════
+//
+// Attaches a Three.js AudioListener to the camera and creates
+// PositionalAudio sources for memory crystals. Audio is procedurally
+// generated — no external assets or CDNs required (local-first).
+//
+// Each region gets a distinct tone. Proximity controls volume and
+// panning. Designed to layer on top of SpatialMemory without
+// modifying it.
+//
+// Usage from app.js:
+//   SpatialAudio.init(camera, scene);
+//   SpatialAudio.bindSpatialMemory(SpatialMemory);
+//   SpatialAudio.update(delta);   // call in animation loop
+// ═══════════════════════════════════════════════════════════════════
+
+const SpatialAudio = (() => {
+
+  // ─── CONFIG ──────────────────────────────────────────────
+  const REGION_TONES = {
+    engineering:  { freq: 220, type: 'sine'     },  // A3
+    social:       { freq: 261, type: 'triangle' },  // C4
+    knowledge:    { freq: 329, type: 'sine'     },  // E4
+    projects:     { freq: 392, type: 'triangle' },  // G4
+    working:      { freq: 440, type: 'sine'     },  // A4
+    archive:      { freq: 110, type: 'sine'     },  // A2
+    user_pref:    { freq: 349, type: 'triangle' },  // F4
+    project:      { freq: 392, type: 'sine'     },  // G4
+    tool:         { freq: 493, type: 'triangle' },  // B4
+    general:      { freq: 293, type: 'sine'     },  // D4
+  };
+  const MAX_AUDIBLE_DIST = 40;   // distance at which volume reaches 0
+  const REF_DIST          = 5;   // full volume within this range
+  const ROLLOFF           = 1.5;
+  const BASE_VOLUME       = 0.12; // master volume cap per source
+  const AMBIENT_VOLUME    = 0.04; // subtle room tone
+
+  // ─── STATE ──────────────────────────────────────────────
+  let _camera   = null;
+  let _scene    = null;
+  let _listener = null;
+  let _ctx      = null;   // shared AudioContext
+  let _sources  = {};     // memId -> { gain, panner, oscillator }
+  let _spatialMemory = null;
+  let _initialized = false;
+  let _enabled  = true;
+  let _masterGain = null; // master volume node
+
+  // ─── INIT ───────────────────────────────────────────────
+  function init(camera, scene) {
+    _camera = camera;
+    _scene  = scene;
+
+    _listener = new THREE.AudioListener();
+    camera.add(_listener);
+
+    // Grab the shared AudioContext from the listener
+    _ctx = _listener.context;
+    _masterGain = _ctx.createGain();
+    _masterGain.gain.value = 1.0;
+    _masterGain.connect(_ctx.destination);
+
+    _initialized = true;
+    console.info('[SpatialAudio] Initialized — AudioContext state:', _ctx.state);
+
+    // Browsers require a user gesture to resume audio context
+    if (_ctx.state === 'suspended') {
+      const resume = () => {
+        _ctx.resume().then(() => {
+          console.info('[SpatialAudio] AudioContext resumed');
+          document.removeEventListener('click', resume);
+          document.removeEventListener('keydown', resume);
+        });
+      };
+      document.addEventListener('click', resume);
+      document.addEventListener('keydown', resume);
+    }
+
+    return _listener;
+  }
+
+  // ─── BIND TO SPATIAL MEMORY ─────────────────────────────
+  function bindSpatialMemory(sm) {
+    _spatialMemory = sm;
+    // Create sources for any existing memories
+    const all = sm.getAllMemories();
+    all.forEach(mem => _ensureSource(mem));
+    console.info('[SpatialAudio] Bound to SpatialMemory —', Object.keys(_sources).length, 'audio sources');
+  }
+
+  // ─── CREATE A PROCEDURAL TONE SOURCE ────────────────────
+  function _ensureSource(mem) {
+    if (!_ctx || !_enabled || _sources[mem.id]) return;
+
+    const regionKey = mem.category || 'working';
+    const tone = REGION_TONES[regionKey] || REGION_TONES.working;
+
+    // Procedural oscillator
+    const osc = _ctx.createOscillator();
+    osc.type = tone.type;
+    osc.frequency.value = tone.freq + _hashOffset(mem.id); // slight per-crystal detune
+
+    const gain = _ctx.createGain();
+    gain.gain.value = 0; // start silent — volume set by update()
+
+    // Stereo panner for left-right spatialization
+    const panner = _ctx.createStereoPanner();
+    panner.pan.value = 0;
+
+    osc.connect(gain);
+    gain.connect(panner);
+    panner.connect(_masterGain);
+
+    osc.start();
+
+    _sources[mem.id] = { osc, gain, panner, region: regionKey };
+  }
+
+  // Small deterministic pitch offset so crystals in the same region don't phase-lock
+  function _hashOffset(id) {
+    let h = 0;
+    for (let i = 0; i < id.length; i++) {
+      h = ((h << 5) - h) + id.charCodeAt(i);
+      h |= 0;
+    }
+    return (Math.abs(h) % 40) - 20; // ±20 Hz
+  }
+
+  // ─── PER-FRAME UPDATE ───────────────────────────────────
+  function update() {
+    if (!_initialized || !_enabled || !_spatialMemory || !_camera) return;
+
+    const camPos = _camera.position;
+    const memories = _spatialMemory.getAllMemories();
+
+    // Ensure sources for newly placed memories
+    memories.forEach(mem => _ensureSource(mem));
+
+    // Remove sources for deleted memories
+    const liveIds = new Set(memories.map(m => m.id));
+    Object.keys(_sources).forEach(id => {
+      if (!liveIds.has(id)) {
+        _removeSource(id);
+      }
+    });
+
+    // Update each source's volume & panning based on camera distance
+    memories.forEach(mem => {
+      const src = _sources[mem.id];
+      if (!src) return;
+
+      // Get crystal position from SpatialMemory mesh
+      const crystals = _spatialMemory.getCrystalMeshes();
+      let meshPos = null;
+      for (const mesh of crystals) {
+        if (mesh.userData.memId === mem.id) {
+          meshPos = mesh.position;
+          break;
+        }
+      }
+      if (!meshPos) return;
+
+      const dx = meshPos.x - camPos.x;
+      const dy = meshPos.y - camPos.y;
+      const dz = meshPos.z - camPos.z;
+      const dist = Math.sqrt(dx * dx + dy * dy + dz * dz);
+
+      // Volume rolloff (inverse distance model)
+      let vol = 0;
+      if (dist < MAX_AUDIBLE_DIST) {
+        vol = BASE_VOLUME / (1 + ROLLOFF * (dist - REF_DIST));
+        vol = Math.max(0, Math.min(BASE_VOLUME, vol));
+      }
+      src.gain.gain.setTargetAtTime(vol, _ctx.currentTime, 0.05);
+
+      // Stereo panning: project camera-to-crystal vector onto camera right axis
+      const camRight = new THREE.Vector3();
+      _camera.getWorldDirection(camRight);
+      camRight.cross(_camera.up).normalize();
+      const toCrystal = new THREE.Vector3(dx, 0, dz).normalize();
+      const pan = THREE.MathUtils.clamp(toCrystal.dot(camRight), -1, 1);
+      src.panner.pan.setTargetAtTime(pan, _ctx.currentTime, 0.05);
+    });
+  }
+
+  function _removeSource(id) {
+    const src = _sources[id];
+    if (!src) return;
+    try {
+      src.osc.stop();
+      src.osc.disconnect();
+      src.gain.disconnect();
+      src.panner.disconnect();
+    } catch (_) { /* already stopped */ }
+    delete _sources[id];
+  }
+
+  // ─── CONTROLS ───────────────────────────────────────────
+  function setEnabled(enabled) {
+    _enabled = enabled;
+    if (!_enabled) {
+      // Silence all sources
+      Object.values(_sources).forEach(src => {
+        src.gain.gain.setTargetAtTime(0, _ctx.currentTime, 0.05);
+      });
+    }
+    console.info('[SpatialAudio]', enabled ? 'Enabled' : 'Disabled');
+  }
+
+  function isEnabled() {
+    return _enabled;
+  }
+
+  function setMasterVolume(vol) {
+    if (_masterGain) {
+      _masterGain.gain.setTargetAtTime(
+        THREE.MathUtils.clamp(vol, 0, 1),
+        _ctx.currentTime,
+        0.05
+      );
+    }
+  }
+
+  function getActiveSourceCount() {
+    return Object.keys(_sources).length;
+  }
+
+  // ─── API ────────────────────────────────────────────────
+  return {
+    init,
+    bindSpatialMemory,
+    update,
+    setEnabled,
+    isEnabled,
+    setMasterVolume,
+    getActiveSourceCount,
+  };
+})();
+
+export { SpatialAudio };

nexus/mnemosyne/archive.py

@@ -1340,6 +1340,74 @@ class MnemosyneArchive:
         results.sort(key=lambda x: x["score"], reverse=True)
         return results[:limit]
 
+    def discover(
+        self,
+        count: int = 3,
+        prefer_fading: bool = True,
+        topic: Optional[str] = None,
+    ) -> list[ArchiveEntry]:
+        """Serendipitous entry discovery weighted by vitality decay.
+
+        Selects entries probabilistically, with weighting that surfaces
+        neglected/forgotten entries more often (when prefer_fading=True)
+        or vibrant/active entries (when prefer_fading=False). Touches
+        selected entries to boost vitality, preventing the same entries
+        from being immediately re-surfaced.
+
+        Args:
+            count: Number of entries to discover (default 3).
+            prefer_fading: If True (default), weight toward fading entries.
+                If False, weight toward vibrant entries.
+            topic: If set, restrict to entries with this topic (case-insensitive).
+
+        Returns:
+            List of ArchiveEntry, up to count entries.
+        """
+        import random
+
+        candidates = list(self._entries.values())
+
+        if not candidates:
+            return []
+
+        if topic:
+            topic_lower = topic.lower()
+            candidates = [e for e in candidates if topic_lower in [t.lower() for t in e.topics]]
+
+        if not candidates:
+            return []
+
+        # Compute vitality for each candidate
+        entries_with_vitality = [(e, self._compute_vitality(e)) for e in candidates]
+
+        # Build weights: invert vitality for fading preference, use directly for vibrant
+        if prefer_fading:
+            # Lower vitality = higher weight. Use (1 - vitality + epsilon) so
+            # even fully vital entries have some small chance.
+            weights = [1.0 - v + 0.01 for _, v in entries_with_vitality]
+        else:
+            # Higher vitality = higher weight. Use (vitality + epsilon).
+            weights = [v + 0.01 for _, v in entries_with_vitality]
+
+        # Sample without replacement
+        selected: list[ArchiveEntry] = []
+        available_entries = [e for e, _ in entries_with_vitality]
+        available_weights = list(weights)
+
+        actual_count = min(count, len(available_entries))
+        for _ in range(actual_count):
+            if not available_entries:
+                break
+            idx = random.choices(range(len(available_entries)), weights=available_weights, k=1)[0]
+            selected.append(available_entries.pop(idx))
+            available_weights.pop(idx)
+
+        # Touch selected entries to boost vitality
+        for entry in selected:
+            self.touch(entry.id)
+
+        return selected
+
     def rebuild_links(self, threshold: Optional[float] = None) -> int:
         """Recompute all links from scratch.
 

nexus/mnemosyne/cli.py

@@ -392,6 +392,25 @@ def cmd_resonance(args):
         print()
 
 
+def cmd_discover(args):
+    archive = MnemosyneArchive()
+    topic = args.topic if args.topic else None
+    results = archive.discover(
+        count=args.count,
+        prefer_fading=not args.vibrant,
+        topic=topic,
+    )
+    if not results:
+        print("No entries to discover.")
+        return
+    for entry in results:
+        v = archive.get_vitality(entry.id)
+        print(f"[{entry.id[:8]}] {entry.title}")
+        print(f"  Topics: {', '.join(entry.topics) if entry.topics else '(none)'}")
+        print(f"  Vitality: {v['vitality']:.4f} (boosted)")
+        print()
+
+
 def cmd_vibrant(args):
     archive = MnemosyneArchive()
     results = archive.vibrant(limit=args.limit)
@@ -499,6 +518,11 @@ def main():
     rs.add_argument("-n", "--limit", type=int, default=20, help="Max pairs to show (default: 20)")
     rs.add_argument("--topic", default="", help="Restrict to entries with this topic")
 
+    di = sub.add_parser("discover", help="Serendipitous entry exploration")
+    di.add_argument("-n", "--count", type=int, default=3, help="Number of entries to discover (default: 3)")
+    di.add_argument("-t", "--topic", default="", help="Filter to entries with this topic")
+    di.add_argument("--vibrant", action="store_true", help="Prefer alive entries over fading ones")
+
     sn = sub.add_parser("snapshot", help="Point-in-time backup and restore")
     sn_sub = sn.add_subparsers(dest="snapshot_cmd")
     sn_create = sn_sub.add_parser("create", help="Create a new snapshot")
@@ -543,6 +567,7 @@ def main():
         "fading": cmd_fading,
         "vibrant": cmd_vibrant,
         "resonance": cmd_resonance,
+        "discover": cmd_discover,
         "snapshot": cmd_snapshot,
     }
     dispatch[args.command](args)

nexus/mnemosyne/snapshot.py

@@ -1,2 +1,31 @@
-import json
-# Snapshot logic
+"""Archive snapshot — point-in-time backup and restore."""
+import json, uuid
+from datetime import datetime, timezone
+from pathlib import Path
+
+def snapshot_create(archive, label=None):
+    sid = str(uuid.uuid4())[:8]
+    now = datetime.now(timezone.utc).isoformat()
+    data = {"snapshot_id": sid, "label": label or "", "created_at": now, "entries": [e.to_dict() for e in archive._entries.values()]}
+    path = archive.path.parent / "snapshots" / f"{sid}.json"
+    path.parent.mkdir(parents=True, exist_ok=True)
+    with open(path, "w") as f: json.dump(data, f, indent=2)
+    return {"snapshot_id": sid, "path": str(path)}
+
+def snapshot_list(archive):
+    d = archive.path.parent / "snapshots"
+    if not d.exists(): return []
+    snaps = []
+    for f in d.glob("*.json"):
+        with open(f) as fh: meta = json.load(fh)
+        snaps.append({"snapshot_id": meta["snapshot_id"], "created_at": meta["created_at"], "entry_count": len(meta["entries"])})
+    return sorted(snaps, key=lambda s: s["created_at"], reverse=True)
+
+def snapshot_restore(archive, sid):
+    d = archive.path.parent / "snapshots"
+    f = next((x for x in d.glob("*.json") if x.stem.startswith(sid)), None)
+    if not f: raise FileNotFoundError(f"No snapshot {sid}")
+    with open(f) as fh: data = json.load(fh)
+    archive._entries = {e["id"]: ArchiveEntry.from_dict(e) for e in data["entries"]}
+    archive._save()
+    return {"snapshot_id": data["snapshot_id"], "restored_entries": len(data["entries"])}

nexus/mnemosyne/tests/test_discover.py

@@ -1 +1 @@
-# Test discover
+# Discover tests

nexus/mnemosyne/tests/test_resonance.py

@@ -1 +1 @@
-# Test resonance
+# Resonance tests

nexus/mnemosyne/tests/test_snapshot.py

@@ -1 +1 @@
-# Test snapshot
+# Snapshot tests

nexus/nexus_think.py

@@ -45,6 +45,7 @@ from nexus.perception_adapter import (
 )
 from nexus.experience_store import ExperienceStore
 from nexus.groq_worker import GroqWorker
+from nexus.heartbeat import write_heartbeat
 from nexus.trajectory_logger import TrajectoryLogger
 
 logging.basicConfig(
@@ -286,6 +287,13 @@ class NexusMind:
 
         self.cycle_count += 1
 
+        # Write heartbeat — watchdog knows the mind is alive
+        write_heartbeat(
+            cycle=self.cycle_count,
+            model=self.model,
+            status="thinking",
+        )
+
         # Periodically distill old memories
         if self.cycle_count % 50 == 0 and self.cycle_count > 0:
             await self._distill_memories()
@@ -383,6 +391,13 @@ class NexusMind:
             salience=1.0,
         ))
 
+        # Write initial heartbeat — mind is online
+        write_heartbeat(
+            cycle=0,
+            model=self.model,
+            status="thinking",
+        )
+
         while self.running:
             try:
                 await self.think_once()
@@ -423,6 +438,13 @@ class NexusMind:
         log.info("Nexus Mind shutting down...")
         self.running = False
 
+        # Final heartbeat — mind is going down cleanly
+        write_heartbeat(
+            cycle=self.cycle_count,
+            model=self.model,
+            status="idle",
+        )
+
         # Final stats
         stats = self.trajectory_logger.get_session_stats()
         log.info(f"Session stats: {json.dumps(stats, indent=2)}")

server.py

@@ -52,19 +52,20 @@ async def broadcast_handler(websocket: websockets.WebSocketServerProtocol):
                 continue
                 
             disconnected = set()
-            # Create broadcast tasks for efficiency
-            tasks = []
+            # Create broadcast tasks, tracking which client each task targets
+            task_client_pairs = []
             for client in clients:
                 if client != websocket and client.open:
-                    tasks.append(asyncio.create_task(client.send(message)))
-            
-            if tasks:
+                    task = asyncio.create_task(client.send(message))
+                    task_client_pairs.append((task, client))
+
+            if task_client_pairs:
+                tasks = [pair[0] for pair in task_client_pairs]
                 results = await asyncio.gather(*tasks, return_exceptions=True)
                 for i, result in enumerate(results):
                     if isinstance(result, Exception):
-                        # Find the client that failed
-                        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}")
+                        target_client = task_client_pairs[i][1]
+                        logger.error(f"Failed to send to client {target_client.remote_address}: {result}")
                         disconnected.add(target_client)
             
             if disconnected:

service-worker.js

@@ -11,7 +11,7 @@ const ASSETS_TO_CACHE = [
 
 self.addEventListener('install', (event) => {
   event.waitUntil(
-    caches.open(CachedName).then(cache => {
+    caches.open(CACHE_NAME).then(cache => {
       return cache.addAll(ASSETS_TO_CACHE);
     })
   );