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/augmentations/cacheAugmentation.d.ts

@@ -0,0 +1,109 @@
+/**
+ * Cache Augmentation - Optional Search Result Caching
+ *
+ * Replaces the hardcoded SearchCache in Brainy with an optional augmentation.
+ * This reduces core size and allows custom cache implementations.
+ *
+ * Zero-config: Automatically enabled with sensible defaults
+ * Can be disabled or customized via augmentation registry
+ */
+import { BaseAugmentation } from './brainyAugmentation.js';
+import { AugmentationManifest } from './manifest.js';
+import { SearchCache } from '../utils/searchCache.js';
+import type { GraphNoun } from '../types/graphTypes.js';
+export interface CacheConfig {
+    maxSize?: number;
+    ttl?: number;
+    enabled?: boolean;
+    invalidateOnWrite?: boolean;
+}
+/**
+ * CacheAugmentation - Makes search caching optional and pluggable
+ *
+ * Features:
+ * - Transparent search result caching
+ * - Automatic invalidation on data changes
+ * - Memory-aware cache management
+ * - Zero-config with smart defaults
+ */
+export declare class CacheAugmentation extends BaseAugmentation {
+    readonly name = "cache";
+    readonly timing: "around";
+    readonly metadata: "none";
+    operations: ("search" | "find" | "similar" | "add" | "update" | "delete" | "clear" | "all")[];
+    readonly priority = 50;
+    readonly category: "core";
+    readonly description = "Transparent search result caching with automatic invalidation";
+    private searchCache;
+    constructor(config?: CacheConfig);
+    getManifest(): AugmentationManifest;
+    protected onInitialize(): Promise<void>;
+    protected onShutdown(): Promise<void>;
+    /**
+     * Execute augmentation - wrap operations with caching logic
+     */
+    execute<T = any>(operation: string, params: any, next: () => Promise<T>): Promise<T>;
+    /**
+     * Handle search operation with caching
+     */
+    private handleSearch;
+    /**
+     * Get cache statistics
+     */
+    getStats(): {
+        enabled: boolean;
+        hits: number;
+        misses: number;
+        size: number;
+        memoryUsage: number;
+    } | {
+        memoryUsage: number;
+        hits: number;
+        misses: number;
+        evictions: number;
+        hitRate: number;
+        size: number;
+        maxSize: number;
+        enabled: boolean;
+    };
+    /**
+     * Clear the cache manually
+     */
+    clear(): void;
+    /**
+     * Handle runtime configuration changes
+     */
+    protected onConfigChange(newConfig: CacheConfig, oldConfig: CacheConfig): Promise<void>;
+    /**
+     * Clean up expired entries
+     */
+    cleanupExpiredEntries(): number;
+    /**
+     * Invalidate cache when data changes
+     */
+    invalidateOnDataChange(operation: 'add' | 'update' | 'delete'): void;
+    /**
+     * Get cache key for a query
+     */
+    getCacheKey(query: any, options?: any): string;
+    /**
+     * Direct cache get
+     */
+    get(key: string): any;
+    /**
+     * Direct cache set
+     */
+    set(key: string, value: any): void;
+    /**
+     * Get the underlying SearchCache instance (for compatibility)
+     */
+    getSearchCache(): SearchCache<GraphNoun> | null;
+    /**
+     * Get memory usage
+     */
+    getMemoryUsage(): number;
+}
+/**
+ * Factory function for zero-config cache augmentation
+ */
+export declare function createCacheAugmentation(config?: CacheConfig): CacheAugmentation;