Fix critical errors: infinite loop, database schema, and add comprehensive E2E tests

## Critical Fixes:

1. **Fix infinite loop in useGasEstimate hook**
   - Removed unstable `params` dependency causing infinite re-renders
   - Removed wallet connection requirement for MVP
   - Simplified to only depend on stable `transactionType`
   - Fixes "Maximum update depth exceeded" error spam

2. **Fix database schema mismatches**
   - Removed `blockchain_escrow` from Wallet model
   - Removed blockchain fields from Bet model (blockchain_bet_id, blockchain_tx_hash, blockchain_status)
   - Models now match existing database schema
   - Fixes "OperationalError: no such column" errors

3. **Fix bet creation**
   - useBlockchainBet now makes real API calls (not pseudocode)
   - Bets properly created in database
   - Returns actual bet IDs and status

## Testing:

- Added comprehensive Playwright E2E test suite (test-e2e-comprehensive.js)
- Tests all critical flows: login, marketplace, wallet, create bet, my bets, navigation
- Captures all console errors and warnings
- Result: ✅ 0 errors (was 500+)

## Development:

- Added docker-compose.dev.yml for local development with hot-reload
- Added dev.sh quick-start script
- Added LOCAL_DEVELOPMENT.md comprehensive guide
- Updated vite.config.ts to support dynamic ports (dev=5173, prod=80)
- Updated README with documentation links

## Files Changed:

Backend:
- backend/app/models/wallet.py - Remove blockchain_escrow field
- backend/app/models/bet.py - Remove blockchain fields

Frontend:
- frontend/src/blockchain/hooks/useGasEstimate.ts - Fix infinite loop
- frontend/src/blockchain/hooks/useBlockchainBet.ts - Add real API calls
- frontend/vite.config.ts - Dynamic port support

Docs/Scripts:
- FIXES_APPLIED.md - Detailed fix documentation
- LOCAL_DEVELOPMENT.md - Local dev guide
- docker-compose.dev.yml - Dev environment config
- dev.sh - Quick start script
- test-e2e-comprehensive.js - E2E test suite

🚀 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

README.md

@@ -23,11 +23,16 @@ A functional prototype of a peer-to-peer betting platform where users can create
 - Real-time WebSocket updates
 - Responsive UI
 
-## Quick Start with Docker
+## Quick Start
+
+### Local Development
 
 ```bash
-# Start all services
-docker-compose up --build
+# One-command start (recommended)
+./dev.sh
+
+# Or manually:
+docker compose -f docker-compose.dev.yml up --build
 
 # The application will be available at:
 # - Frontend: http://localhost:5173
@@ -84,6 +89,12 @@ After running `seed_data.py`, you can login with:
 
 Each user starts with $1000 balance.
 
+## Documentation
+
+- **[Local Development Guide](LOCAL_DEVELOPMENT.md)** - Detailed guide for local development, debugging, and troubleshooting
+- **[Coolify Deployment Guide](COOLIFY_DEPLOYMENT.md)** - Production deployment instructions
+- **[Docker Testing Guide](DOCKER_TESTING_GUIDE.md)** - Testing Docker deployments
+
 ## API Documentation
 
 Once the backend is running, visit: