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/AugmentationMetadataContract.d.ts

@@ -0,0 +1,94 @@
+/**
+ * Augmentation Metadata Contract System
+ *
+ * Prevents accidental metadata corruption while allowing intentional enrichment
+ * Each augmentation declares its metadata intentions upfront
+ */
+export interface AugmentationMetadataContract {
+    name: string;
+    version: string;
+    reads?: {
+        userFields?: string[];
+        internalFields?: string[];
+        augmentationFields?: string[];
+    };
+    writes?: {
+        userFields?: Array<{
+            field: string;
+            type: 'create' | 'update' | 'merge' | 'delete';
+            description: string;
+            example?: any;
+        }>;
+        augmentationFields?: Array<{
+            field: string;
+            description: string;
+        }>;
+        internalFields?: Array<{
+            field: string;
+            permission: 'granted' | 'requested';
+            reason: string;
+        }>;
+    };
+    conflictResolution?: {
+        strategy: 'error' | 'warn' | 'merge' | 'skip' | 'override';
+        priority?: number;
+    };
+    guarantees?: {
+        preservesExisting?: boolean;
+        reversible?: boolean;
+        idempotent?: boolean;
+        validatesTypes?: boolean;
+    };
+}
+/**
+ * Runtime metadata safety enforcer
+ */
+export declare class MetadataSafetyEnforcer {
+    private contracts;
+    private modifications;
+    /**
+     * Register an augmentation's contract
+     */
+    registerContract(contract: AugmentationMetadataContract): void;
+    /**
+     * Check if an augmentation can modify a field
+     */
+    canModifyField(augName: string, field: string, value: any): {
+        allowed: boolean;
+        reason?: string;
+        warnings?: string[];
+    };
+    /**
+     * Create safe metadata proxy for an augmentation
+     */
+    createSafeProxy(metadata: any, augName: string): any;
+}
+/**
+ * Example augmentation contracts
+ */
+export declare const EXAMPLE_CONTRACTS: Record<string, AugmentationMetadataContract>;
+/**
+ * Augmentation base class with safety
+ */
+export declare abstract class SafeAugmentation {
+    protected enforcer: MetadataSafetyEnforcer;
+    protected contract: AugmentationMetadataContract;
+    constructor(contract: AugmentationMetadataContract);
+    /**
+     * Get safe metadata proxy
+     */
+    protected getSafeMetadata(metadata: any): any;
+    /**
+     * Abstract method to implement augmentation logic
+     */
+    abstract execute(metadata: any): Promise<any>;
+}
+/**
+ * Example: Category enricher implementation
+ */
+export declare class CategoryEnricherAugmentation extends SafeAugmentation {
+    constructor();
+    execute(metadata: any): Promise<any>;
+    private detectCategory;
+    private detectSubcategories;
+}