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/distributed/shardManager.d.ts

@@ -0,0 +1,114 @@
+/**
+ * Shard Manager for Horizontal Scaling
+ * Implements consistent hashing for data distribution across shards
+ */
+import { EventEmitter } from 'events';
+export interface ShardConfig {
+    shardCount?: number;
+    replicationFactor?: number;
+    virtualNodes?: number;
+    autoRebalance?: boolean;
+}
+export interface Shard {
+    id: string;
+    nodeId: string;
+    virtualNodes: string[];
+    itemCount: number;
+    sizeBytes: number;
+    status: 'active' | 'rebalancing' | 'offline';
+}
+export interface ShardAssignment {
+    shardId: string;
+    nodeId: string;
+    replicas: string[];
+}
+/**
+ * Shard Manager for distributing data across multiple nodes
+ */
+export declare class ShardManager extends EventEmitter {
+    private hashRing;
+    private shards;
+    private nodeToShards;
+    private shardCount;
+    private replicationFactor;
+    private autoRebalance;
+    constructor(config?: ShardConfig);
+    /**
+     * Initialize shard configuration
+     */
+    private initializeShards;
+    /**
+     * Add a node to the cluster
+     */
+    addNode(nodeId: string): void;
+    /**
+     * Remove a node from the cluster
+     */
+    removeNode(nodeId: string): void;
+    /**
+     * Get shard assignment for a key
+     */
+    getShardForKey(key: string): ShardAssignment | null;
+    /**
+     * Get nodes responsible for a shard
+     */
+    getNodesForShard(shardId: string): string[];
+    /**
+     * Get total number of shards
+     */
+    getTotalShards(): number;
+    /**
+     * Update shard assignment to a new node
+     */
+    updateShardAssignment(shardId: string, newNodeId: string): void;
+    /**
+     * Get shard ID for a key
+     */
+    private getShardId;
+    /**
+     * Rebalance shards across nodes
+     */
+    private rebalanceShards;
+    /**
+     * Get shard assignment for all shards
+     */
+    getShardAssignments(): ShardAssignment[];
+    /**
+     * Get shard statistics
+     */
+    getShardStats(): {
+        totalShards: number;
+        activeShards: number;
+        rebalancingShards: number;
+        offlineShards: number;
+        averageItemsPerShard: number;
+    };
+    /**
+     * Update shard metrics
+     */
+    updateShardMetrics(shardId: string, itemCount: number, sizeBytes: number): void;
+    /**
+     * Get replication nodes for a shard
+     */
+    getReplicationNodes(shardId: string): string[];
+    /**
+     * Check if rebalancing is needed
+     */
+    needsRebalancing(): boolean;
+    /**
+     * Get cluster health
+     */
+    getHealth(): {
+        healthy: boolean;
+        nodes: number;
+        shards: {
+            total: number;
+            active: number;
+            inactive: number;
+        };
+    };
+}
+/**
+ * Create a shard manager instance
+ */
+export declare function createShardManager(config?: ShardConfig): ShardManager;