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/augmentations/walAugmentation.d.ts

@@ -0,0 +1,119 @@
+/**
+ * Write-Ahead Log (WAL) Augmentation
+ *
+ * Provides file-based durability and atomicity for storage operations
+ * Automatically enabled for all critical storage operations
+ *
+ * Features:
+ * - True file-based persistence for crash recovery
+ * - Operation replay after startup
+ * - Automatic log rotation and cleanup
+ * - Cross-platform compatibility (filesystem, OPFS, cloud)
+ */
+import { BaseAugmentation } from './brainyAugmentation.js';
+import { AugmentationManifest } from './manifest.js';
+interface WALConfig {
+    enabled?: boolean;
+    immediateWrites?: boolean;
+    adaptivePersistence?: boolean;
+    walPrefix?: string;
+    maxSize?: number;
+    checkpointInterval?: number;
+    autoRecover?: boolean;
+    maxRetries?: number;
+}
+export declare class WALAugmentation extends BaseAugmentation {
+    name: string;
+    timing: "around";
+    metadata: "readonly";
+    operations: ("addNoun" | "addVerb" | "saveNoun" | "saveVerb" | "updateMetadata" | "delete" | "deleteVerb" | "clear")[];
+    priority: number;
+    readonly category: "internal";
+    readonly description = "Write-ahead logging for durability and crash recovery";
+    private currentLogId;
+    private operationCounter;
+    private checkpointTimer?;
+    private isRecovering;
+    constructor(config?: WALConfig);
+    /**
+     * Get the augmentation manifest for discovery
+     */
+    getManifest(): AugmentationManifest;
+    /**
+     * Handle runtime configuration changes
+     */
+    protected onConfigChange(newConfig: WALConfig, oldConfig: WALConfig): Promise<void>;
+    protected onInitialize(): Promise<void>;
+    shouldExecute(operation: string, params: any): boolean;
+    execute<T = any>(operation: string, params: any, next: () => Promise<T>): Promise<T>;
+    /**
+     * Asynchronous WAL entry logging (fire-and-forget for immediate writes)
+     */
+    private logAsyncWALEntry;
+    /**
+     * Write WAL entry to persistent storage using storage adapter
+     */
+    private writeWALEntry;
+    /**
+     * Recover pending operations from all existing WAL files
+     */
+    private recoverPendingOperations;
+    /**
+     * Find all WAL files in storage
+     */
+    private findWALFiles;
+    /**
+     * Read WAL entries from a file
+     */
+    private readWALEntries;
+    /**
+     * Find operations that were started but not completed
+     */
+    private findPendingOperations;
+    /**
+     * Replay an operation during recovery
+     */
+    private replayOperation;
+    /**
+     * Create a checkpoint to mark a point in time
+     */
+    private createCheckpoint;
+    /**
+     * Check if log rotation is needed
+     */
+    private checkLogRotation;
+    /**
+     * Sanitize parameters for logging (remove large objects)
+     */
+    private sanitizeParams;
+    /**
+     * Get WAL statistics
+     */
+    getStats(): {
+        enabled: boolean;
+        currentLogId: string;
+        operationCount: number;
+        logSize: number;
+        pendingOperations: number;
+        failedOperations: number;
+    };
+    /**
+     * Manually trigger checkpoint
+     */
+    checkpoint(): Promise<void>;
+    /**
+     * Manually trigger log rotation
+     */
+    rotate(): Promise<void>;
+    /**
+     * Write WAL data directly to storage without embedding
+     * This bypasses the brain's AI processing pipeline for raw WAL data
+     */
+    private writeWALFileDirectly;
+    /**
+     * Read WAL data directly from storage without embedding
+     */
+    private readWALFileDirectly;
+    protected onShutdown(): Promise<void>;
+}
+export {};