fix: correct IKnowledgeGraph import path in memory specs

Path was '../../src/core/knowledge/IKnowledgeGraph' (doesn't
exist); correct path is '../../src/memory/retrieval/graph/knowledge/
IKnowledgeGraph'. vitest ran these green via esbuild type-stripping,
but IDE tsserver flagged the missing module. All 22 tests across
the four specs still pass.

Author: jddunn

tests/memory/CognitiveMemoryManager.getTraceCount.spec.ts

@@ -10,7 +10,7 @@ import { CognitiveMemoryManager } from '../../src/memory/CognitiveMemoryManager'
 import type { CognitiveMemoryConfig, PADState } from '../../src/memory/core/config';
 import type { IVectorStore, VectorDocument, QueryResult } from '../../src/rag/IVectorStore';
 import type { IEmbeddingManager } from '../../src/rag/IEmbeddingManager';
-import type { IKnowledgeGraph } from '../../src/core/knowledge/IKnowledgeGraph';
+import type { IKnowledgeGraph } from '../../src/memory/retrieval/graph/knowledge/IKnowledgeGraph';
 import type { IWorkingMemory } from '../../src/cognitive_substrate/memory/IWorkingMemory';
 
 function createMockVectorStore(): IVectorStore {

tests/memory/CognitiveMemoryManager.integration.spec.ts

@@ -9,7 +9,7 @@ import { CognitiveMemoryManager } from '../../src/memory/CognitiveMemoryManager'
 import type { CognitiveMemoryConfig, PADState } from '../../src/memory/core/config';
 import type { IVectorStore, VectorDocument, QueryResult } from '../../src/rag/IVectorStore';
 import type { IEmbeddingManager } from '../../src/rag/IEmbeddingManager';
-import type { IKnowledgeGraph } from '../../src/core/knowledge/IKnowledgeGraph';
+import type { IKnowledgeGraph } from '../../src/memory/retrieval/graph/knowledge/IKnowledgeGraph';
 import type { IWorkingMemory } from '../../src/cognitive_substrate/memory/IWorkingMemory';
 
 // ---------------------------------------------------------------------------

tests/memory/CognitiveMemoryManager.scoringWeightsOverride.spec.ts

@@ -13,7 +13,7 @@ import { CognitiveMemoryManager } from '../../src/memory/CognitiveMemoryManager'
 import type { CognitiveMemoryConfig, PADState } from '../../src/memory/core/config';
 import type { IVectorStore, VectorDocument, QueryResult } from '../../src/rag/IVectorStore';
 import type { IEmbeddingManager } from '../../src/rag/IEmbeddingManager';
-import type { IKnowledgeGraph } from '../../src/core/knowledge/IKnowledgeGraph';
+import type { IKnowledgeGraph } from '../../src/memory/retrieval/graph/knowledge/IKnowledgeGraph';
 import type { IWorkingMemory } from '../../src/cognitive_substrate/memory/IWorkingMemory';
 import type { SignalName } from '../../src/memory/core/decay/RetrievalPriorityScorer';
 

tests/memory/CognitiveMemoryManager.tagRoundTrip.spec.ts

@@ -14,7 +14,7 @@ import { CognitiveMemoryManager } from '../../src/memory/CognitiveMemoryManager'
 import type { CognitiveMemoryConfig, PADState } from '../../src/memory/core/config';
 import type { IVectorStore, VectorDocument, QueryResult } from '../../src/rag/IVectorStore';
 import type { IEmbeddingManager } from '../../src/rag/IEmbeddingManager';
-import type { IKnowledgeGraph } from '../../src/core/knowledge/IKnowledgeGraph';
+import type { IKnowledgeGraph } from '../../src/memory/retrieval/graph/knowledge/IKnowledgeGraph';
 import type { IWorkingMemory } from '../../src/cognitive_substrate/memory/IWorkingMemory';
 
 function createMockVectorStore(): IVectorStore {