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/errors/brainyError.d.ts

@@ -0,0 +1,49 @@
+/**
+ * Custom error types for Brainy operations
+ * Provides better error classification and handling
+ */
+export type BrainyErrorType = 'TIMEOUT' | 'NETWORK' | 'STORAGE' | 'NOT_FOUND' | 'RETRY_EXHAUSTED' | 'VALIDATION';
+/**
+ * Custom error class for Brainy operations
+ * Provides error type classification and retry information
+ */
+export declare class BrainyError extends Error {
+    readonly type: BrainyErrorType;
+    readonly retryable: boolean;
+    readonly originalError?: Error;
+    readonly attemptNumber?: number;
+    readonly maxRetries?: number;
+    constructor(message: string, type: BrainyErrorType, retryable?: boolean, originalError?: Error, attemptNumber?: number, maxRetries?: number);
+    /**
+     * Create a timeout error
+     */
+    static timeout(operation: string, timeoutMs: number, originalError?: Error): BrainyError;
+    /**
+     * Create a network error
+     */
+    static network(message: string, originalError?: Error): BrainyError;
+    /**
+     * Create a storage error
+     */
+    static storage(message: string, originalError?: Error): BrainyError;
+    /**
+     * Create a not found error
+     */
+    static notFound(resource: string): BrainyError;
+    /**
+     * Create a retry exhausted error
+     */
+    static retryExhausted(operation: string, maxRetries: number, lastError?: Error): BrainyError;
+    /**
+     * Create a validation error
+     */
+    static validation(parameter: string, constraint: string, value?: any): BrainyError;
+    /**
+     * Check if an error is retryable
+     */
+    static isRetryable(error: Error): boolean;
+    /**
+     * Convert a generic error to a BrainyError with appropriate classification
+     */
+    static fromError(error: Error, operation?: string): BrainyError;
+}