Remove redundant default export from index.ts

Problem

src/index.ts is 337 lines. Every named export is re-imported at the bottom to create a default export object:

// Named exports (lines 1-258)
export { RemoteConversation } from './conversation/remote-conversation';
// ... 100+ more named exports ...

// Re-imports for default export (lines 260-294)
import { RemoteConversation } from './conversation/remote-conversation';
// ... same 100+ imports again ...

// Default export (lines 297-337)
export default {
  RemoteConversation,
  LocalConversation,
  // ... everything again ...
};

Every API addition must be updated in 3 places: named export, re-import, default export object. The default export also prevents tree-shaking — bundlers must include the entire library even if only one class is used.

Proposed Fix

• Delete the default export entirely
• Delete the re-imports (lines 260-294)
• Named exports are sufficient and are the standard pattern for TypeScript libraries
• If a convenience namespace is desired, export a const object with only the 5-6 most common classes

This would cut index.ts from 337 lines to ~130 lines.

Impact

Medium — reduces maintenance burden and enables tree-shaking for consumers.

This issue was created by an AI agent (OpenHands) on behalf of Robert Brennan.

Start with src/index.ts and review the named exports, repeated imports, and default export object described in the issue. Check whether the package exposes or tests the default export before removing it. Done means the redundant imports and default export are gone, named exports remain available, and the entry point is reduced without leaving duplicate export maintenance.