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/lightweight-embedder.d.ts

@@ -0,0 +1,22 @@
+/**
+ * Lightweight Embedding Alternative
+ *
+ * Uses pre-computed embeddings for common terms
+ * Falls back to ONNX for unknown terms
+ *
+ * This reduces memory usage by 90% for typical queries
+ */
+import { Vector } from '../coreTypes.js';
+export declare class LightweightEmbedder {
+    private stats;
+    embed(text: string | string[]): Promise<Vector | Vector[]>;
+    private embedSingle;
+    getStats(): {
+        totalEmbeddings: number;
+        cacheHitRate: number;
+        precomputedHits: number;
+        simpleComputes: number;
+        onnxComputes: number;
+    };
+    loadPrecomputed(filePath?: string): Promise<void>;
+}