refactor: prepare augmentation system for 2.0 clean architecture

- Removed factory function exports from index.ts
- Removed unused augmentationFactory imports
- Added deprecated type definitions temporarily to maintain compilation
- Created REFACTOR-2.0-AUGMENTATIONS.md documenting cleanup plan
- All old types marked as @deprecated for removal before final 2.0

This is an intermediate state - full refactor documented in REFACTOR-2.0-AUGMENTATIONS.md

src/augmentations/conduitAugmentations.ts

@@ -46,31 +46,6 @@ abstract class BaseConduitAugmentation extends BaseAugmentation {
   ): Promise<WebSocketConnection | null>
 }
 
-/**
- * WebRTC Conduit Augmentation (placeholder for backwards compatibility)
- * @deprecated Use WebSocketConduitAugmentation instead
- */
-export class WebRTCConduitAugmentation extends BaseConduitAugmentation {
-  readonly name = 'webrtc-conduit'
-  
-  async execute<T = any>(
-    operation: string,
-    params: any,
-    context?: AugmentationContext
-  ): Promise<T | void> {
-    // Placeholder - WebRTC not yet implemented
-    this.log('WebRTC conduit not yet implemented, use WebSocket instead', 'warn')
-  }
-  
-  async establishConnection(
-    targetSystemId: string,
-    config?: Record<string, unknown>
-  ): Promise<WebSocketConnection | null> {
-    this.log('WebRTC conduit not yet implemented, use WebSocket instead', 'warn')
-    return null
-  }
-}
-
 /**
  * WebSocket Conduit Augmentation
  * Syncs data between Brainy instances using WebSockets