fix: robust sessionEnd with full data structure validation (v0.1.68)

- Check this.data exists before accessing properties
- Initialize trajectories array if missing
- Add try/catch around engine and save operations
- Null-check trajectory objects in filter

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

npm/packages/ruvector/.ruvector/intelligence.json

@@ -127,7 +127,8 @@
     "total_memories": 0,
     "total_trajectories": 0,
     "total_errors": 0,
-    "session_count": 0,
-    "last_session": 0
-  }
+    "session_count": 1,
+    "last_session": 1767194227
+  },
+  "trajectories": []
 }

npm/packages/ruvector/bin/cli.js

@@ -2609,22 +2609,37 @@ class Intelligence {
   }
 
   sessionEnd() {
-    // Ensure stats exists with defaults
+    // Ensure data structure exists with defaults
+    if (!this.data) {
+      this.data = { patterns: {}, memories: [], trajectories: [], errors: [], agents: {}, edges: [], stats: {} };
+    }
     if (!this.data.stats) {
       this.data.stats = { total_patterns: 0, total_memories: 0, total_trajectories: 0, total_errors: 0, session_count: 0, last_session: 0 };
     }
+    if (!this.data.trajectories) {
+      this.data.trajectories = [];
+    }
+
     const lastSession = this.data.stats.last_session || 0;
     const duration = this.now() - (this.sessionStartTime || lastSession);
-    const actions = (this.data.trajectories || []).filter(t => t.timestamp >= lastSession).length;
+    const actions = this.data.trajectories.filter(t => t && t.timestamp >= lastSession).length;
 
     // Force learning cycle (only if engine already initialized)
-    const eng = this.getEngineIfReady();
-    if (eng) {
-      eng.forceLearn();
+    try {
+      const eng = this.getEngineIfReady();
+      if (eng) {
+        eng.forceLearn();
+      }
+    } catch (e) {
+      // Ignore engine errors on session end
     }
 
     // Save all data
-    this.save();
+    try {
+      this.save();
+    } catch (e) {
+      // Ignore save errors on session end
+    }
 
     return { duration, actions };
   }

npm/packages/ruvector/package.json

@@ -1,6 +1,6 @@
 {
   "name": "ruvector",
-  "version": "0.1.67",
+  "version": "0.1.68",
   "description": "High-performance vector database for Node.js with automatic native/WASM fallback",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",