feat: Implement tournament schedule tab and fix E2E tests (#27)

## Summary

This PR implements the tournament schedule tab functionality and fixes all remaining E2E test failures.

### Changes Included

1. **Tournament Schedule Feature**
   - Added tournament schedule page at `/admin/tournaments/[id]/schedule`
   - Implemented "Generate Schedule" button functionality
   - Added schedule generation logic for round-robin tournaments

2. **E2E Test Fixes**
   - Fixed database connection issues in production builds
   - Improved test reliability with better error handling and debugging
   - Updated test infrastructure to use environment variables instead of hardcoded values

3. **CI/CD Updates**
   - Added E2E test job to PR workflow
   - Configured tests to run against development database
   - Moved database password to Gitea secrets

4. **Code Quality**
   - Removed hardcoded passwords from codebase
   - Improved Prisma client configuration
   - Enhanced authentication and navigation components

### Test Results
All 16 E2E test scenarios are now passing:
- Authentication tests: ✅
- Registration tests: ✅
- Tournament schedule tests: ✅
- Player schedule tests: ✅
- Admin navigation tests: ✅

### Database Configuration
- Tests run against `euchre_camp_dev` database
- Production builds use environment variables for database configuration
- Database password stored in Gitea secrets as `DB_PASSWORD`

### CI Pipeline
The PR workflow now includes:
1. Unit tests
2. E2E tests (using production build)
3. Version bump analysis

E2E tests must pass before PR can be merged.

Reviewed-on: #27
Co-authored-by: David Gwilliam <dhgwilliam@gmail.com>
Co-committed-by: David Gwilliam <dhgwilliam@gmail.com>

scripts/run-cucumber-tests.sh

@@ -0,0 +1,36 @@
+#!/bin/bash
+# Run Cucumber tests with development database
+
+# Load development environment
+export $(cat .env.development | grep -v '^#' | xargs)
+
+# Start dev server in background
+bun run dev > /tmp/dev-server.log 2>&1 &
+DEV_PID=$!
+
+# Wait for server to be ready
+echo "Waiting for dev server to start..."
+sleep 15
+
+# Check if server is ready
+if curl -s http://localhost:3000 > /dev/null 2>&1; then
+  echo "✅ Dev server is ready"
+else
+  echo "❌ Dev server failed to start"
+  kill $DEV_PID 2>/dev/null
+  exit 1
+fi
+
+# Run Cucumber tests
+echo "Running Cucumber tests..."
+bun run test:acceptance:cucumber "$@"
+
+# Capture exit code
+EXIT_CODE=$?
+
+# Stop dev server
+echo "Stopping dev server..."
+kill $DEV_PID 2>/dev/null
+wait $DEV_PID 2>/dev/null
+
+exit $EXIT_CODE