diff --git a/SSE_IMPLEMENTATION.md b/SSE_IMPLEMENTATION.md
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-# Real-Time Event Streaming Implementation
-
-This document summarizes the implementation of Issue #134: Backend SSE Stream Updates.
-
-## What Was Built
-
-A production-ready **Server-Sent Events (SSE)** system for real-time payment stream updates in FlowFi.
-
-## Quick Links
-
-- **Quick Start**: [`backend/SSE_README.md`](backend/SSE_README.md)
-- **Full Implementation Guide**: [`backend/docs/SSE_IMPLEMENTATION.md`](backend/docs/SSE_IMPLEMENTATION.md)
-- **Architecture Diagrams**: [`backend/docs/SSE_ARCHITECTURE.md`](backend/docs/SSE_ARCHITECTURE.md)
-- **Production Checklist**: [`backend/PRODUCTION_CHECKLIST.md`](backend/PRODUCTION_CHECKLIST.md)
-- **Complete Summary**: [`ISSUE_134_SUMMARY.md`](ISSUE_134_SUMMARY.md).
-
-## Try It Now
-
-```bash
-# 1. Start the backend
-cd backend
-npm run dev
-
-# 2. In another terminal, subscribe to events
-curl -N http://localhost:3001/events/subscribe?all=true
-
-# 3. In a third terminal, create a stream
-curl -X POST http://localhost:3001/streams \
-  -H "Content-Type: application/json" \
-  -d '{
-    "sender": "GABC...",
-    "recipient": "GDEF...",
-    "tokenAddress": "CUSDC...",
-    "ratePerSecond": "1000000",
-    "depositedAmount": "86400000000",
-    "startTime": 1708560000
-  }'
-
-# You'll see the event in terminal 2!
-```
-
-Or open the visual test client:
-```bash
-open backend/test-sse-client.html
-```
-
-## API Endpoints
-
-### Subscribe to Events
-```
-GET /events/subscribe?streams=1&streams=2
-GET /events/subscribe?users=GABC...
-GET /events/subscribe?all=true
-```
-
-### Connection Statistics
-```
-GET /events/stats
-```
-
-## Event Types
-
-- `stream.created` - New stream created
-- `stream.topped_up` - Stream received additional funds
-- `stream.withdrawn` - Funds withdrawn from stream
-- `stream.cancelled` - Stream cancelled
-- `stream.completed` - Stream completed
-
-## Client Integration
-
-### JavaScript
-```javascript
-const eventSource = new EventSource(
-  'http://localhost:3001/events/subscribe?streams=1'
-);
-
-eventSource.addEventListener('stream.created', (e) => {
-  const data = JSON.parse(e.data);
-  console.log('New stream:', data);
-});
-```
-
-### React
-```typescript
-import { useStreamEvents } from '@/hooks/useStreamEvents';
-
-function StreamDashboard({ streamId }) {
-  const { events, connected } = useStreamEvents({ 
-    streamIds: [streamId] 
-  });
-
-  return (
-    <div>
-      <div>Status: {connected ? '🟢 Connected' : '🔴 Disconnected'}</div>
-      {events.map((event, i) => (
-        <div key={i}>{event.type}: {JSON.stringify(event.data)}</div>
-      ))}
-    </div>
-  );
-}
-```
-
-See [`backend/examples/useStreamEvents.tsx`](backend/examples/useStreamEvents.tsx) for the complete React hook.
-
-## Architecture
-
-```
-Blockchain Indexer
-       ↓
-   Backend API
-       ↓
-   SSE Service ──→ Client 1
-       ↓       ──→ Client 2
-       ↓       ──→ Client 3
-   Redis Pub/Sub (for scaling)
-```
-
-## Performance
-
-- **10,000 connections** = ~100MB memory
-- **1,000 events/sec** = minimal CPU impact
-- **Per-connection overhead** = ~10KB
-
-## Production Readiness
-
-### Implemented ✅
-- Subscription filtering (by stream, user, or all)
-- Automatic client cleanup on disconnect
-- Connection statistics endpoint
-- Error handling and validation
-- OpenAPI documentation
-- Test client and examples
-- Reconnection strategy
-
-### Next Steps for Production
-- Add JWT authentication
-- Implement per-IP rate limits
-- Add Redis for horizontal scaling
-- Configure reverse proxy (nginx)
-- Set up monitoring and alerts
-
-See [`backend/PRODUCTION_CHECKLIST.md`](backend/PRODUCTION_CHECKLIST.md) for the complete deployment guide.
-
-## Files Created
-
-### Core Implementation
-- `backend/src/services/sse.service.ts` - SSE connection manager
-- `backend/src/controllers/sse.controller.ts` - Subscription endpoint
-- `backend/src/routes/events.routes.ts` - Events routes
-
-### Documentation
-- `backend/docs/SSE_IMPLEMENTATION.md` - Full technical guide
-- `backend/docs/SSE_ARCHITECTURE.md` - Architecture diagrams
-- `backend/SSE_README.md` - Quick start guide
-- `backend/IMPLEMENTATION_COMPLETE.md` - Implementation details
-- `backend/PRODUCTION_CHECKLIST.md` - Deployment checklist
-
-### Examples & Testing
-- `backend/examples/useStreamEvents.tsx` - Production-ready React hook
-- `backend/services/indexer-integration.example.ts` - Blockchain integration example
-- `backend/test-sse-client.html` - Visual test client
-
-## Next Integration Steps
-
-1. **Connect to Blockchain Indexer**
-   ```typescript
-   import { handleBlockchainEvent } from './services/indexer-integration.example.js';
-   
-   // When your indexer detects a blockchain event
-   stellar.on('StreamCreated', (event) => {
-     handleBlockchainEvent({
-       eventType: 'CREATED',
-       streamId: event.stream_id,
-       sender: event.sender,
-       recipient: event.recipient,
-       // ... other fields
-     });
-   });
-   ```
-
-2. **Add to Frontend**
-   - Copy `backend/examples/useStreamEvents.tsx` to `frontend/src/hooks/`
-   - Use in dashboard components
-   - Display real-time balance updates
-
-3. **Deploy to Production**
-   - Follow `backend/PRODUCTION_CHECKLIST.md`
-   - Add authentication middleware
-   - Configure Redis for scaling
-   - Set up monitoring
-
-## Acceptance Criteria ✅
-
-All requirements from Issue #134 have been met:
-
-- ✅ Clients can subscribe and see new events without full page reload
-- ✅ Reconnection and backoff strategies documented
-- ✅ Load implications documented (capacity, memory, CPU)
-- ✅ Security implications documented (auth, rate limiting, DDoS)
-- ✅ Gateway broadcasts events to subscribed clients
-- ✅ Subscription filtering implemented
-
-## Support
-
-For questions or issues:
-1. Check the documentation in `backend/docs/`
-2. Review examples in `backend/examples/`
-3. Test with `backend/test-sse-client.html`
-4. See `ISSUE_134_SUMMARY.md` for complete overview
-
----
-
-**Status**: ✅ Complete and ready for integration  
-**Last Updated**: 2026-02-22
diff --git a/backend/IMPLEMENTATION_COMPLETE.md b/backend/IMPLEMENTATION_COMPLETE.md
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-# Issue #134: Backend SSE Stream Updates - Implementation Complete ✅
-
-## Summary
-
-Implemented **Server-Sent Events (SSE)** for real-time stream updates in FlowFi backend.
-
-## Architecture Decision
-
-**SSE over WebSockets** because:
-- ✅ Unidirectional (server → client) matches DeFi streaming use case
-- ✅ Simpler: automatic reconnection, HTTP-based, easier debugging
-- ✅ Lower overhead for broadcasting updates
-- ✅ Better infrastructure compatibility (HTTP/2, proxies, load balancers)
-- ✅ Native browser support with EventSource API
-
-## Implementation
-
-### Core Components
-
-1. **SSE Service** (`src/services/sse.service.ts`)
-   - Client connection management
-   - Subscription filtering (by stream, user, or all)
-   - Targeted broadcasting
-   - Automatic cleanup on disconnect
-
-2. **SSE Controller** (`src/controllers/sse.controller.ts`)
-   - Handles `/events/subscribe` endpoint
-   - Validates subscription parameters with Zod
-   - Manages SSE connection headers
-
-3. **Events Routes** (`src/routes/events.routes.ts`)
-   - `GET /events/subscribe` - Subscribe to events
-   - `GET /events/stats` - Connection statistics
-   - Full OpenAPI documentation
-
-4. **Integration** (`src/controllers/stream.controller.ts`)
-   - Broadcasts events when streams are created/updated
-   - Notifies both sender and recipient
-
-### Event Types
-
-| Event | Description |
-|-------|-------------|
-| `stream.created` | New stream created |
-| `stream.topped_up` | Stream received funds |
-| `stream.withdrawn` | Funds withdrawn |
-| `stream.cancelled` | Stream cancelled |
-| `stream.completed` | Stream completed |
-
-## API Usage
-
-### Subscribe to Specific Streams
-```bash
-curl -N http://localhost:3001/events/subscribe?streams=1&streams=2
-```
-
-### Subscribe to User Events
-```bash
-curl -N http://localhost:3001/events/subscribe?users=GABC...
-```
-
-### Subscribe to All Events
-```bash
-curl -N http://localhost:3001/events/subscribe?all=true
-```
-
-### Get Connection Stats
-```bash
-curl http://localhost:3001/events/stats
-```
-
-## Client Examples
-
-### JavaScript
-```javascript
-const eventSource = new EventSource(
-  'http://localhost:3001/events/subscribe?streams=1'
-);
-
-eventSource.addEventListener('stream.created', (e) => {
-  const data = JSON.parse(e.data);
-  console.log('New stream:', data);
-});
-```
-
-### React Hook
-See `examples/useStreamEvents.tsx` for production-ready React hook with:
-- Automatic reconnection with exponential backoff
-- Event history management
-- Connection state tracking
-- TypeScript support
-
-## Testing
-
-1. **HTML Test Client**: `test-sse-client.html`
-   - Visual connection status
-   - Event log with timestamps
-   - Test stream creation button
-
-2. **Manual Testing**:
-   ```bash
-   # Terminal 1: Start backend
-   npm run dev
-
-   # Terminal 2: Subscribe to events
-   curl -N http://localhost:3001/events/subscribe?all=true
-
-   # Terminal 3: Create a stream
-   curl -X POST http://localhost:3001/streams \
-     -H "Content-Type: application/json" \
-     -d '{"sender":"GABC...","recipient":"GDEF...","tokenAddress":"CUSDC...","ratePerSecond":"1000000","depositedAmount":"86400000000","startTime":1708560000}'
-   ```
-
-## Reconnection Strategy
-
-### Browser Default
-- Automatic reconnection with exponential backoff
-- Initial: ~1s, Max: ~30s
-
-### Production Implementation
-```javascript
-class SSEClient {
-  retryDelay = 1000;
-  maxRetryDelay = 30000;
-
-  reconnect() {
-    setTimeout(() => {
-      this.connect();
-      this.retryDelay = Math.min(this.retryDelay * 2, this.maxRetryDelay);
-    }, this.retryDelay);
-  }
-}
-```
-
-## Load & Security
-
-### Capacity (Single Instance)
-- **10,000 connections**: ~100MB memory
-- **1,000 events/sec**: Minimal CPU
-- **Per-connection overhead**: ~10KB
-
-### Security Recommendations
-- [ ] Add JWT authentication
-- [ ] Implement per-IP connection limits
-- [ ] Use reverse proxy for DDoS protection
-- [ ] Monitor connection count
-
-### Horizontal Scaling
-For multi-instance deployments, add Redis pub/sub:
-```typescript
-// Publisher
-redis.publish('stream-events', JSON.stringify({ event, data }));
-
-// Subscriber
-subscriber.on('message', (channel, message) => {
-  const { event, data } = JSON.parse(message);
-  sseService.broadcast(event, data);
-});
-```
-
-## Documentation
-
-- **Full Guide**: `docs/SSE_IMPLEMENTATION.md`
-- **Integration Example**: `services/indexer-integration.example.ts`
-- **React Hook**: `examples/useStreamEvents.tsx`
-- **Test Client**: `test-sse-client.html`
-
-## Acceptance Criteria ✅
-
-- [x] Clients can subscribe and see new events without full page reload
-- [x] Reconnection strategy documented (exponential backoff, 1s-30s)
-- [x] Load implications documented (10K connections = 100MB)
-- [x] Security implications documented (auth, rate limiting, DDoS)
-- [x] Event broadcasting system implemented
-- [x] Subscription filtering (stream, user, all)
-- [x] Connection statistics endpoint
-- [x] OpenAPI documentation
-- [x] Test client provided
-- [x] Production examples (React hook)
-
-## Next Steps
-
-1. **Integrate with Blockchain Indexer**
-   - Use `handleBlockchainEvent()` from `indexer-integration.example.ts`
-   - Connect to Stellar event listener
-
-2. **Add Authentication**
-   ```typescript
-   router.get('/subscribe', verifyToken, subscribe);
-   ```
-
-3. **Production Deployment**
-   - Add Redis for horizontal scaling
-   - Configure reverse proxy (nginx)
-   - Set up monitoring/alerts
-
-4. **Frontend Integration**
-   - Copy `useStreamEvents.tsx` to frontend
-   - Add to stream dashboard components
-   - Display real-time balance updates
-
-## Files Created
-
-```
-backend/
-├── src/
-│   ├── services/
-│   │   ├── sse.service.ts                    # Core SSE service
-│   │   └── indexer-integration.example.ts    # Integration example
-│   ├── controllers/
-│   │   └── sse.controller.ts                 # SSE endpoint
-│   └── routes/
-│       └── events.routes.ts                  # Events routes
-├── docs/
-│   └── SSE_IMPLEMENTATION.md                 # Full documentation
-├── examples/
-│   └── useStreamEvents.tsx                   # React hook
-├── test-sse-client.html                      # Test client
-├── SSE_README.md                             # Quick start
-└── IMPLEMENTATION_COMPLETE.md                # This file
-```
-
-## Files Modified
-
-- `src/app.ts` - Added events routes
-- `src/controllers/stream.controller.ts` - Added SSE broadcasting
-
----
-
-**Status**: ✅ Ready for production with authentication and Redis scaling
-**Tested**: ✅ Manual testing with curl and HTML client
-**Documented**: ✅ Complete with examples and best practices