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.js

@@ -0,0 +1,45 @@
+/**
+ * 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 function hashString(str) {
+    let hash = 5381;
+    for (let i = 0; i < str.length; i++) {
+        const char = str.charCodeAt(i);
+        hash = ((hash << 5) + hash) + char; // hash * 33 + char
+    }
+    // Ensure positive number
+    return Math.abs(hash);
+}
+/**
+ * Alternative: FNV-1a hash algorithm
+ * Good distribution and fast
+ * @param str - String to hash
+ * @returns Positive integer hash
+ */
+export function fnv1aHash(str) {
+    let hash = 2166136261;
+    for (let i = 0; i < str.length; i++) {
+        hash ^= str.charCodeAt(i);
+        hash = (hash * 16777619) >>> 0;
+    }
+    return hash;
+}
+/**
+ * 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 function getPartitionHash(input) {
+    // Use djb2 by default as it's fast and has good distribution
+    // This ensures consistent partitioning across all environments
+    return hashString(input);
+}
+//# sourceMappingURL=crypto.js.map