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/utils/crypto.d.ts

@@ -0,0 +1,25 @@
+/**
+ * Cross-platform crypto utilities
+ * Provides hashing functions that work in both Node.js and browser environments
+ */
+/**
+ * Simple string hash function that works in all environments
+ * Uses djb2 algorithm - fast and good distribution
+ * @param str - String to hash
+ * @returns Positive integer hash
+ */
+export declare function hashString(str: string): number;
+/**
+ * Alternative: FNV-1a hash algorithm
+ * Good distribution and fast
+ * @param str - String to hash
+ * @returns Positive integer hash
+ */
+export declare function fnv1aHash(str: string): number;
+/**
+ * Generate a deterministic hash for partitioning
+ * Uses the most appropriate algorithm for the environment
+ * @param input - Input string to hash
+ * @returns Positive integer hash suitable for modulo operations
+ */
+export declare function getPartitionHash(input: string): number;