**feat: add browser-compatible exports and define BrainyData interface**

### Changes:
- Created `examples/browser_compatible_exports.ts`:
  - Introduced browser-friendly exports with polyfill for `Buffer` in browser environments.
  - Implemented shims for Node.js modules (`fs`, `util`, and `path`) to avoid compatibility issues.
  - Exported browser-compatible types and utilities: `BrainyData`, `NounType`, `VerbType`, graph types, core types, distance functions, embedding utilities, and storage adapters.
  - Explicitly excluded Node.js/CLI-specific parts to focus on browser compatibility.
- Added `src/types/brainyDataInterface.ts`:
  - Defined `BrainyDataInterface` to break the circular dependency between `brainyData.ts` and `serverSearchAugmentations.ts`.
  - Provided methods for managing nodes, relationships, initialization, search, and adding vector data with metadata.

### Purpose:
- Enhanced the codebase to support browser environments by introducing browser-specific exports and avoiding Node.js dependencies.
- Established clearer separation of concerns and modularity by introducing the `BrainyDataInterface` for dependency management, improving maintainability and flexibility.

src/types/brainyDataInterface.ts

@@ -0,0 +1,47 @@
+/**
+ * BrainyDataInterface
+ * 
+ * This interface defines the methods from BrainyData that are used by serverSearchAugmentations.ts.
+ * It's used to break the circular dependency between brainyData.ts and serverSearchAugmentations.ts.
+ */
+
+import { Vector } from '../coreTypes.js'
+
+export interface BrainyDataInterface<T = unknown> {
+  /**
+   * Initialize the database
+   */
+  init(): Promise<void>
+
+  /**
+   * Get a noun by ID
+   * @param id The ID of the noun to get
+   */
+  get(id: string): Promise<unknown>
+
+  /**
+   * Add a vector or data to the database
+   * @param vectorOrData Vector or data to add
+   * @param metadata Optional metadata to associate with the vector
+   * @returns The ID of the added vector
+   */
+  add(vectorOrData: Vector | unknown, metadata?: T): Promise<string>
+
+  /**
+   * Search for text in the database
+   * @param text The text to search for
+   * @param limit Maximum number of results to return
+   * @returns Search results
+   */
+  searchText(text: string, limit?: number): Promise<unknown[]>
+
+  /**
+   * Create a relationship between two entities
+   * @param sourceId The ID of the source entity
+   * @param targetId The ID of the target entity
+   * @param relationType The type of relationship
+   * @param metadata Optional metadata about the relationship
+   * @returns The ID of the created relationship
+   */
+  relate(sourceId: string, targetId: string, relationType: string, metadata?: unknown): Promise<string>
+}