chore: recovery checkpoint - v3.0 API successfully recovered

CRITICAL CHECKPOINT - DO NOT PUSH TO GITHUB

Recovery Status:
- Successfully recovered brainy.ts from compiled JavaScript
- All core v3.0 API methods functional (add, get, update, delete, relate, find, etc.)
- Neural subsystem intact (562KB embedded patterns, NLP working)
- Augmentation pipeline operational (20+ augmentations)
- HNSW clustering system complete
- Triple Intelligence compiled (needs constructor fix)
- Test suite validates functionality

Changes preserved:
- 898 files with changes from last 3 days
- 144,475 insertions
- All augmentation improvements
- All test coverage enhancements
- Complete v3.0 feature set

This is a LOCAL checkpoint only - contains recovered work after corruption incident.
Created backup in .backups/brainy-full-20250910-151314.tar.gz

Branch: recovery-checkpoint-20250910-151433
Date: Wed Sep 10 03:18:04 PM PDT 2025

.recovery-workspace/dist-backup-20250910-141917/embeddings/CachedEmbeddings.d.ts

@@ -0,0 +1,40 @@
+/**
+ * Cached Embeddings - Performance Optimization Layer
+ *
+ * Provides pre-computed embeddings for common terms to avoid
+ * unnecessary model calls. Falls back to EmbeddingManager for
+ * unknown terms.
+ *
+ * This is purely a performance optimization - it doesn't affect
+ * the consistency or accuracy of embeddings.
+ */
+import { Vector } from '../coreTypes.js';
+/**
+ * Cached Embeddings with fallback to EmbeddingManager
+ */
+export declare class CachedEmbeddings {
+    private stats;
+    /**
+     * Generate embedding with caching
+     */
+    embed(text: string | string[]): Promise<Vector | Vector[]>;
+    /**
+     * Embed single text with cache lookup
+     */
+    private embedSingle;
+    /**
+     * Get cache statistics
+     */
+    getStats(): {
+        totalEmbeddings: number;
+        cacheHitRate: number;
+        cacheHits: number;
+        simpleComputes: number;
+        modelCalls: number;
+    };
+    /**
+     * Add custom pre-computed embeddings
+     */
+    addPrecomputed(term: string, embedding: Vector): void;
+}
+export declare const cachedEmbeddings: CachedEmbeddings;