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/coordinator.d.ts

@@ -0,0 +1,193 @@
+/**
+ * Distributed Coordinator for Brainy 3.0
+ * Provides leader election, consensus, and coordination for distributed instances
+ */
+import { EventEmitter } from 'events';
+import { NetworkTransport } from './networkTransport.js';
+export interface NodeInfo {
+    id: string;
+    address: string;
+    port: number;
+    lastSeen: number;
+    status: 'active' | 'inactive' | 'suspected';
+    state?: 'follower' | 'candidate' | 'leader';
+    lastHeartbeat?: number;
+}
+export interface CoordinatorConfig {
+    nodeId?: string;
+    address?: string;
+    port?: number;
+    heartbeatInterval?: number;
+    electionTimeout?: number;
+    nodes?: string[];
+}
+export interface ConsensusState {
+    term: number;
+    votedFor: string | null;
+    leader: string | null;
+    state: 'follower' | 'candidate' | 'leader';
+}
+export interface RaftMessage {
+    type: 'requestVote' | 'voteResponse' | 'appendEntries' | 'appendResponse';
+    term: number;
+    from: string;
+    to?: string;
+    data?: any;
+}
+/**
+ * Distributed Coordinator implementing Raft-like consensus
+ */
+export declare class DistributedCoordinator extends EventEmitter {
+    private nodeId;
+    private nodes;
+    private consensusState;
+    private heartbeatInterval;
+    private electionTimeout;
+    private electionTimer?;
+    private heartbeatTimer?;
+    private isRunning;
+    private networkTransport?;
+    private votesReceived;
+    private currentTerm;
+    private lastLogIndex;
+    private lastLogTerm;
+    private logEntries;
+    private transport;
+    private pendingMigrations;
+    private committedMigrations;
+    constructor(config?: CoordinatorConfig);
+    /**
+     * Start the coordinator
+     */
+    start(networkTransport?: NetworkTransport): Promise<void>;
+    /**
+     * Setup network message handlers
+     */
+    private setupNetworkHandlers;
+    /**
+     * Stop the coordinator
+     */
+    stop(): Promise<void>;
+    /**
+     * Register additional nodes
+     */
+    registerNodes(nodes: string[]): void;
+    /**
+     * Become a follower
+     */
+    private becomeFollower;
+    /**
+     * Become a candidate and start election
+     */
+    private becomeCandidate;
+    /**
+     * Become the leader
+     */
+    private becomeLeader;
+    /**
+     * Request votes from all nodes
+     */
+    private requestVotes;
+    /**
+     * Handle vote request from another node
+     */
+    private handleVoteRequest;
+    /**
+     * Handle vote response
+     */
+    private handleVoteResponse;
+    /**
+     * Check if we have majority votes
+     */
+    private checkVoteMajority;
+    /**
+     * Handle append entries (heartbeat) from leader
+     */
+    private handleAppendEntries;
+    /**
+     * Handle append response from follower
+     */
+    private handleAppendResponse;
+    /**
+     * Send heartbeat to followers
+     */
+    private sendHeartbeat;
+    /**
+     * Start heartbeat timer as leader
+     */
+    private startHeartbeat;
+    /**
+     * Reset election timeout
+     */
+    private resetElectionTimeout;
+    /**
+     * Check if log is up to date
+     */
+    private isLogUpToDate;
+    /**
+     * Check log consistency
+     */
+    private checkLogConsistency;
+    /**
+     * Append log entries
+     */
+    private appendLogEntries;
+    /**
+     * Get last log index
+     */
+    private getLastLogIndex;
+    /**
+     * Get last log term
+     */
+    private getLastLogTerm;
+    /**
+     * Generate a unique node ID
+     */
+    private generateNodeId;
+    /**
+     * Get current leader
+     */
+    getLeader(): string | null;
+    /**
+     * Propose a shard migration to the cluster
+     */
+    proposeMigration(migration: {
+        shardId: string;
+        fromNode: string;
+        toNode: string;
+        migrationId: string;
+    }): Promise<void>;
+    /**
+     * Get migration status
+     */
+    getMigrationStatus(migrationId: string): Promise<'pending' | 'committed' | 'rejected'>;
+    /**
+     * Check if this node is the leader
+     */
+    isLeader(): boolean;
+    /**
+     * Get all nodes in the cluster
+     */
+    getNodes(): NodeInfo[];
+    /**
+     * Get cluster health status
+     */
+    getHealth(): {
+        healthy: boolean;
+        leader: string | null;
+        nodes: number;
+        activeNodes: number;
+    };
+    /**
+     * Propose a command to the cluster
+     */
+    proposeCommand(command: any): Promise<void>;
+    /**
+     * Get current state
+     */
+    getState(): ConsensusState;
+}
+/**
+ * Create a coordinator instance
+ */
+export declare function createCoordinator(config?: CoordinatorConfig): DistributedCoordinator;