feat: add comprehensive testing scripts for vLLM-omni

- Add test_serving.sh: Full-featured testing suite with comprehensive validation
- Add quick_test.sh: Fast validation script for quick testing after changes
- Add scripts/README.md: Complete documentation for testing scripts
- Include health checks, text generation, performance testing, and API integration
- Add retry mechanisms and proper error handling
- Support for different models and ports
- Comprehensive logging and colored output
- Ready for CI/CD integration

Usage:
- Quick test: ./scripts/quick_test.sh [port]
- Full test: ./scripts/test_serving.sh [model_path] [port]

scripts/quick_test.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+# Quick vLLM-omni Test Script
+# Fast test for basic functionality after changes
+# Usage: ./scripts/quick_test.sh [port]
+
+set -e
+
+PORT=${1:-8000}
+HOST="localhost"
+
+# Colors
+GREEN='\033[0;32m'
+RED='\033[0;31m'
+BLUE='\033[0;34m'
+NC='\033[0m'
+
+log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
+log_success() { echo -e "${GREEN}[SUCCESS]${NC} $1"; }
+log_error() { echo -e "${RED}[ERROR]${NC} $1"; }
+
+# Cleanup
+cleanup() {
+    log_info "Cleaning up..."
+    pkill -f "vllm serve" 2>/dev/null || true
+}
+
+trap cleanup EXIT
+
+# Quick test
+main() {
+    log_info "Quick vLLM-omni test on port $PORT"
+    
+    # Test imports
+    log_info "Testing imports..."
+    python -c "import vllm_omni; from vllm_omni.entrypoints.omni_llm import OmniLLM, AsyncOmniLLM; print('✅ Imports OK')" || {
+        log_error "Import failed"
+        exit 1
+    }
+    
+    # Start server
+    log_info "Starting server..."
+    vllm serve ./models/Qwen3-0.6B --omni --port $PORT > /dev/null 2>&1 &
+    SERVER_PID=$!
+    
+    # Wait for server
+    sleep 15
+    
+    # Test health with retry
+    log_info "Testing health endpoint..."
+    for i in {1..5}; do
+        if curl -s http://$HOST:$PORT/health | grep -q "healthy"; then
+            log_success "Health check passed"
+            break
+        else
+            if [ $i -eq 5 ]; then
+                log_error "Health check failed after 5 attempts"
+                exit 1
+            fi
+            log_info "Health check attempt $i failed, retrying in 3 seconds..."
+            sleep 3
+        fi
+    done
+    
+    # Test generation
+    log_info "Testing text generation..."
+    response=$(curl -s -X POST http://$HOST:$PORT/generate \
+        -H "Content-Type: application/json" \
+        -d '{"prompts": ["Quick test"], "max_tokens": 10, "temperature": 0.7}')
+    
+    if echo "$response" | python -c "import sys, json; data=json.load(sys.stdin); exit(0 if 'outputs' in data else 1)" 2>/dev/null; then
+        log_success "Generation test passed"
+    else
+        log_error "Generation test failed"
+        exit 1
+    fi
+    
+    log_success "Quick test completed successfully!"
+}
+
+cd "$(dirname "$0")/.."
+main "$@"