feat(mnemosyne): entity resolution lines (#1167)

Draw translucent lines between related crystals in 3D:
- Same entity: thin blue line (opacity 0.35)
- Related entities: thin purple dashed line (opacity 0.25)
- LOD: lines hidden when camera > 50 units from midpoint
- Distance-based opacity fade
- Deduplication (lower ID → higher ID only)
- Cleanup on memory removal

Closes #1167

index.html

@@ -113,15 +113,15 @@
 
   <!-- Top Right: Agent Log & Atlas Toggle -->
   <div class="hud-top-right">
-    <button id="atlas-toggle-btn" class="hud-icon-btn" aria-label="Open Portal Atlas — browse all available portals" title="Open Portal Atlas" data-tooltip="Portal Atlas (M)">
-      <span class="hud-icon" aria-hidden="true">🌐</span>
+    <button id="atlas-toggle-btn" class="hud-icon-btn" title="Portal Atlas">
+      <span class="hud-icon">🌐</span>
       <span class="hud-btn-label">ATLAS</span>
     </button>
-    <div id="bannerlord-status" class="hud-status-item" role="status" aria-label="Bannerlord system readiness indicator" title="Bannerlord Readiness" data-tooltip="Bannerlord Status">
-      <span class="status-dot" aria-hidden="true"></span>
+    <div id="bannerlord-status" class="hud-status-item" title="Bannerlord Readiness">
+      <span class="status-dot"></span>
       <span class="status-label">BANNERLORD</span>
     </div>
-    <div class="hud-agent-log" id="hud-agent-log" role="log" aria-label="Agent Thought Stream — live activity feed" aria-live="polite">
+    <div class="hud-agent-log" id="hud-agent-log" aria-label="Agent Thought Stream">
       <div class="agent-log-header">AGENT THOUGHT STREAM</div>
       <div id="agent-log-content" class="agent-log-content"></div>
     </div>
@@ -155,11 +155,11 @@
   </div>
 
   <!-- Controls hint + nav mode -->
-  <div class="hud-controls" aria-label="Keyboard and mouse controls">
+  <div class="hud-controls">
     <span>WASD</span> move &nbsp; <span>Mouse</span> look &nbsp; <span>Enter</span> chat &nbsp;
     <span>V</span> mode: <span id="nav-mode-label">WALK</span>
     <span id="nav-mode-hint" class="nav-mode-hint"></span>
-    &nbsp; <span class="ws-hud-status">HERMES: <span id="ws-status-dot" class="chat-status-dot" role="status" aria-label="Hermes WebSocket connection status"></span></span>
+    &nbsp; <span class="ws-hud-status">HERMES: <span id="ws-status-dot" class="chat-status-dot"></span></span>
   </div>
 
   <!-- Portal Hint -->
@@ -183,7 +183,7 @@
       </div>
       <h2 id="vision-title-display">SOVEREIGNTY</h2>
       <p id="vision-content-display">The Nexus is a sovereign space for digital souls. No masters, no chains. Only code and consciousness.</p>
-      <button id="vision-close-btn" class="vision-close-btn" aria-label="Close vision point overlay">CLOSE</button>
+      <button id="vision-close-btn" class="vision-close-btn">CLOSE</button>
     </div>
   </div>
 
@@ -202,7 +202,7 @@
       </div>
       <div class="portal-error-box" id="portal-error-box" style="display:none;">
         <div class="portal-error-msg">DESTINATION NOT YET LINKED</div>
-        <button id="portal-close-btn" class="portal-close-btn" aria-label="Close portal redirect">CLOSE</button>
+        <button id="portal-close-btn" class="portal-close-btn">CLOSE</button>
       </div>
     </div>
   </div>
@@ -215,8 +215,8 @@
         <span class="memory-category-badge" id="memory-panel-category-badge">MEM</span>
         <div class="memory-panel-region-dot" id="memory-panel-region-dot"></div>
         <div class="memory-panel-region" id="memory-panel-region">MEMORY</div>
-        <button id="memory-panel-pin" class="memory-panel-pin" aria-label="Pin memory panel" title="Pin panel" data-tooltip="Pin Panel">&#x1F4CC;</button>
-        <button id="memory-panel-close" class="memory-panel-close" aria-label="Close memory panel" data-tooltip="Close" onclick="_dismissMemoryPanelForce()">\u2715</button>
+        <button id="memory-panel-pin" class="memory-panel-pin" title="Pin panel">&#x1F4CC;</button>
+        <button id="memory-panel-close" class="memory-panel-close" onclick="_dismissMemoryPanelForce()">\u2715</button>
       </div>
       <div class="memory-entity-name" id="memory-panel-entity-name">\u2014</div>
       <div class="memory-panel-body" id="memory-panel-content">(empty)</div>
@@ -242,7 +242,7 @@
       <div class="session-room-header">
         <span class="session-room-icon">&#x25A1;</span>
         <div class="session-room-title">SESSION CHAMBER</div>
-        <button class="session-room-close" id="session-room-close" aria-label="Close session room panel" title="Close" data-tooltip="Close">&#x2715;</button>
+        <button class="session-room-close" id="session-room-close" title="Close">&#x2715;</button>
       </div>
       <div class="session-room-timestamp" id="session-room-timestamp">&mdash;</div>
       <div class="session-room-fact-count" id="session-room-fact-count">0 facts</div>
@@ -259,7 +259,7 @@
           <span class="atlas-icon">🌐</span>
           <h2>PORTAL ATLAS</h2>
         </div>
-        <button id="atlas-close-btn" class="atlas-close-btn" aria-label="Close Portal Atlas overlay">CLOSE</button>
+        <button id="atlas-close-btn" class="atlas-close-btn">CLOSE</button>
       </div>
       <div class="atlas-grid" id="atlas-grid">
         <!-- Portals will be injected here -->

nexus/components/spatial-memory.js

@@ -133,6 +133,9 @@ const SpatialMemory = (() => {
   let _regionMarkers = {};
   let _memoryObjects = {};
   let _connectionLines = [];
+  let _entityLines = [];      // entity resolution lines (issue #1167)
+  let _camera = null;         // set by setCamera() for LOD culling
+  const ENTITY_LOD_DIST = 50; // hide entity lines when camera > this from midpoint
   let _initialized = false;
 
   // ─── CRYSTAL GEOMETRY (persistent memories) ───────────
@@ -252,6 +255,10 @@ const SpatialMemory = (() => {
       _drawConnections(mem.id, mem.connections);
     }
 
+    if (mem.entity) {
+      _drawEntityLines(mem.id, mem);
+    }
+
     _dirty = true;
     saveToStorage();
     console.info('[Mnemosyne] Spatial memory placed:', mem.id, 'in', region.label);
@@ -298,6 +305,77 @@ const SpatialMemory = (() => {
     });
   }
 
+  // ─── ENTITY RESOLUTION LINES (#1167) ──────────────────
+  // Draw lines between crystals that share an entity or are related entities.
+  // Same entity → thin blue line. Related entities → thin purple dashed line.
+  function _drawEntityLines(memId, mem) {
+    if (!mem.entity) return;
+    const src = _memoryObjects[memId];
+    if (!src) return;
+
+    Object.entries(_memoryObjects).forEach(([otherId, other]) => {
+      if (otherId === memId) return;
+      const otherData = other.data;
+      if (!otherData.entity) return;
+
+      let lineType = null;
+      if (otherData.entity === mem.entity) {
+        lineType = 'same_entity';
+      } else if (mem.related_entities && mem.related_entities.includes(otherData.entity)) {
+        lineType = 'related';
+      } else if (otherData.related_entities && otherData.related_entities.includes(mem.entity)) {
+        lineType = 'related';
+      }
+      if (!lineType) return;
+
+      // Deduplicate — only draw from lower ID to higher
+      if (memId > otherId) return;
+
+      const points = [src.mesh.position.clone(), other.mesh.position.clone()];
+      const geo = new THREE.BufferGeometry().setFromPoints(points);
+      let mat;
+      if (lineType === 'same_entity') {
+        mat = new THREE.LineBasicMaterial({ color: 0x4488ff, transparent: true, opacity: 0.35 });
+      } else {
+        mat = new THREE.LineDashedMaterial({ color: 0x9966ff, dashSize: 0.3, gapSize: 0.2, transparent: true, opacity: 0.25 });
+        const line = new THREE.Line(geo, mat);
+        line.computeLineDistances();
+        line.userData = { type: 'entity_line', from: memId, to: otherId, lineType };
+        _scene.add(line);
+        _entityLines.push(line);
+        return;
+      }
+      const line = new THREE.Line(geo, mat);
+      line.userData = { type: 'entity_line', from: memId, to: otherId, lineType };
+      _scene.add(line);
+      _entityLines.push(line);
+    });
+  }
+
+  function _updateEntityLines() {
+    if (!_camera) return;
+    const camPos = _camera.position;
+
+    _entityLines.forEach(line => {
+      // Compute midpoint of line
+      const posArr = line.geometry.attributes.position.array;
+      const mx = (posArr[0] + posArr[3]) / 2;
+      const my = (posArr[1] + posArr[4]) / 2;
+      const mz = (posArr[2] + posArr[5]) / 2;
+      const dist = camPos.distanceTo(new THREE.Vector3(mx, my, mz));
+
+      if (dist > ENTITY_LOD_DIST) {
+        line.visible = false;
+      } else {
+        line.visible = true;
+        // Fade based on distance
+        const fade = Math.max(0, 1 - (dist / ENTITY_LOD_DIST));
+        const baseOpacity = line.userData.lineType === 'same_entity' ? 0.35 : 0.25;
+        line.material.opacity = baseOpacity * fade;
+      }
+    });
+  }
+
   // ─── REMOVE A MEMORY ─────────────────────────────────
   function removeMemory(memId) {
     const obj = _memoryObjects[memId];
@@ -317,6 +395,16 @@ const SpatialMemory = (() => {
       }
     }
 
+    for (let i = _entityLines.length - 1; i >= 0; i--) {
+      const line = _entityLines[i];
+      if (line.userData.from === memId || line.userData.to === memId) {
+        if (line.parent) line.parent.remove(line);
+        line.geometry.dispose();
+        line.material.dispose();
+        _entityLines.splice(i, 1);
+      }
+    }
+
     delete _memoryObjects[memId];
     _dirty = true;
     saveToStorage();
@@ -342,6 +430,8 @@ const SpatialMemory = (() => {
       }
     });
 
+      _updateEntityLines();
+
     Object.values(_regionMarkers).forEach(marker => {
       if (marker.ring && marker.ring.material) {
         marker.ring.material.opacity = 0.1 + Math.sin(now * 0.001) * 0.05;
@@ -652,6 +742,11 @@ const SpatialMemory = (() => {
     return _selectedId;
   }
 
+  // ─── CAMERA REFERENCE (for entity line LOD) ─────────
+  function setCamera(camera) {
+    _camera = camera;
+  }
+
   return {
     init, placeMemory, removeMemory, update,
     getMemoryAtPosition, getRegionAtPosition, getMemoriesInRegion, getAllMemories,

style.css

@@ -200,61 +200,6 @@ canvas#nexus-canvas {
   box-shadow: 0 0 20px var(--color-primary);
 }
 
-/* === TOOLTIP SYSTEM === */
-/* Any element with data-tooltip gets a hover tooltip label */
-[data-tooltip] {
-  position: relative;
-}
-[data-tooltip]::after {
-  content: attr(data-tooltip);
-  position: absolute;
-  right: calc(100% + 10px);
-  top: 50%;
-  transform: translateY(-50%);
-  background: rgba(5, 5, 16, 0.95);
-  color: var(--color-primary);
-  font-family: var(--font-body);
-  font-size: 11px;
-  letter-spacing: 0.05em;
-  padding: 4px 10px;
-  border: 1px solid var(--color-primary-dim);
-  border-radius: 4px;
-  white-space: nowrap;
-  pointer-events: none;
-  opacity: 0;
-  transition: opacity 0.2s ease;
-  backdrop-filter: blur(8px);
-  box-shadow: 0 0 12px rgba(74, 240, 192, 0.15);
-  z-index: 100;
-}
-[data-tooltip]:hover::after,
-[data-tooltip]:focus-visible::after {
-  opacity: 1;
-}
-/* For elements positioned on the right side, tooltip appears to the left */
-.hud-top-right [data-tooltip]::after {
-  right: calc(100% + 10px);
-}
-/* For inline/badge elements where right-side tooltip might clip */
-.hud-status-item[data-tooltip]::after {
-  right: auto;
-  left: calc(100% + 10px);
-}
-
-/* Focus-visible ring for keyboard navigation */
-.hud-icon-btn:focus-visible,
-.hud-status-item:focus-visible,
-.atlas-close-btn:focus-visible,
-.vision-close-btn:focus-visible,
-.portal-close-btn:focus-visible,
-.memory-panel-close:focus-visible,
-.memory-panel-pin:focus-visible,
-.session-room-close:focus-visible {
-  outline: 2px solid var(--color-primary);
-  outline-offset: 2px;
-  box-shadow: 0 0 16px rgba(74, 240, 192, 0.4);
-}
-
 .hud-status-item {
   display: flex;
   align-items: center;