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/universal/fs.d.ts

@@ -0,0 +1,102 @@
+/**
+ * Universal File System implementation
+ * Browser: Uses OPFS (Origin Private File System)
+ * Node.js: Uses built-in fs/promises
+ * Serverless: Uses memory-based fallback
+ */
+/**
+ * Universal file operations interface
+ */
+export interface UniversalFS {
+    readFile(path: string, encoding?: string): Promise<string>;
+    writeFile(path: string, data: string, encoding?: string): Promise<void>;
+    mkdir(path: string, options?: {
+        recursive?: boolean;
+    }): Promise<void>;
+    exists(path: string): Promise<boolean>;
+    readdir(path: string): Promise<string[]>;
+    readdir(path: string, options: {
+        withFileTypes: true;
+    }): Promise<{
+        name: string;
+        isDirectory(): boolean;
+        isFile(): boolean;
+    }[]>;
+    unlink(path: string): Promise<void>;
+    stat(path: string): Promise<{
+        isFile(): boolean;
+        isDirectory(): boolean;
+    }>;
+    access(path: string, mode?: number): Promise<void>;
+}
+export declare const readFile: (path: string, encoding?: string) => Promise<string>;
+export declare const writeFile: (path: string, data: string, encoding?: string) => Promise<void>;
+export declare const mkdir: (path: string, options?: {
+    recursive?: boolean;
+}) => Promise<void>;
+export declare const exists: (path: string) => Promise<boolean>;
+export declare const readdir: {
+    (path: string): Promise<string[]>;
+    (path: string, options: {
+        withFileTypes: true;
+    }): Promise<{
+        name: string;
+        isDirectory(): boolean;
+        isFile(): boolean;
+    }[]>;
+};
+export declare const unlink: (path: string) => Promise<void>;
+export declare const stat: (path: string) => Promise<{
+    isFile(): boolean;
+    isDirectory(): boolean;
+}>;
+export declare const access: (path: string, mode?: number) => Promise<void>;
+declare const _default: {
+    readFile: (path: string, encoding?: string) => Promise<string>;
+    writeFile: (path: string, data: string, encoding?: string) => Promise<void>;
+    mkdir: (path: string, options?: {
+        recursive?: boolean;
+    }) => Promise<void>;
+    exists: (path: string) => Promise<boolean>;
+    readdir: {
+        (path: string): Promise<string[]>;
+        (path: string, options: {
+            withFileTypes: true;
+        }): Promise<{
+            name: string;
+            isDirectory(): boolean;
+            isFile(): boolean;
+        }[]>;
+    };
+    unlink: (path: string) => Promise<void>;
+    stat: (path: string) => Promise<{
+        isFile(): boolean;
+        isDirectory(): boolean;
+    }>;
+    access: (path: string, mode?: number) => Promise<void>;
+};
+export default _default;
+export declare const promises: {
+    readFile: (path: string, encoding?: string) => Promise<string>;
+    writeFile: (path: string, data: string, encoding?: string) => Promise<void>;
+    mkdir: (path: string, options?: {
+        recursive?: boolean;
+    }) => Promise<void>;
+    exists: (path: string) => Promise<boolean>;
+    readdir: {
+        (path: string): Promise<string[]>;
+        (path: string, options: {
+            withFileTypes: true;
+        }): Promise<{
+            name: string;
+            isDirectory(): boolean;
+            isFile(): boolean;
+        }[]>;
+    };
+    unlink: (path: string) => Promise<void>;
+    stat: (path: string) => Promise<{
+        isFile(): boolean;
+        isDirectory(): boolean;
+    }>;
+    access: (path: string, mode?: number) => Promise<void>;
+};