feat(api): Add API testing script and quick test guide

backend/API-TEST-GUIDE.md

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+# Quick API Test Commands
+
+## Test from your local machine
+
+### 1. Health Check
+```
+curl http://10.0.10.30:6800/health
+```
+
+### 2. Ready Check
+```
+curl http://10.0.10.30:6800/ready
+```
+
+### 3. Register User
+```
+curl -X POST http://10.0.10.30:6800/api/auth/register \
+  -H "Content-Type: application/json" \
+  -d '{"email": "test@example.com", "password": "SecurePassword123!", "username": "testuser"}'
+```
+
+### 4. Login
+```
+curl -X POST http://10.0.10.30:6800/api/auth/login \
+  -H "Content-Type: application/json" \
+  -d '{"email": "test@example.com", "password": "SecurePassword123!"}'
+```
+
+### 5. Get User Profile (with token)
+```
+TOKEN=$(curl -s -X POST http://10.0.10.30:6800/api/auth/login \
+  -H "Content-Type: application/json" \
+  -d '{"email": "test@example.com", "password": "SecurePassword123!"}' \
+  | jq -r '.access_token')
+
+curl http://10.0.10.30:6800/api/users/me \
+  -H "Authorization: Bearer $TOKEN"
+```
+
+## Test from the server
+```
+cd backend
+./scripts/test-api.sh
+```
+
+## Expected Results
+
+- Health Check: `+`{"status":"ok"}`+`
+- Ready Check: `+`{"status":"ready"}`+`
+- Register: `+`{"message": "User registered successfully", "user_id": "..."}`+`
+- Login: `+`{"access_token": "...", "refresh_token": "...", "token_type": "bearer"}`+`

backend/scripts/test-api.sh

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+#!/bin/bash
+# test-api.sh - Test Normogen API endpoints
+
+BASE_URL="http://10.0.10.30:6800"
+
+echo "================================"
+echo "Testing Normogen API"
+echo "Base URL: $BASE_URL"
+echo "================================"
+echo ""
+
+# Test 1: Health check
+echo "1. Health Check:"
+curl -s -w "\nHTTP Status: %{http_code}\n" $BASE_URL/health || echo "FAILED: Connection refused"
+echo ""
+
+# Test 2: Ready check
+echo "2. Ready Check:"
+curl -s -w "\nHTTP Status: %{http_code}\n" $BASE_URL/ready || echo "FAILED: Connection refused"
+echo ""
+
+# Test 3: Register user
+echo "3. Register User:"
+REGISTER_RESPONSE=$(curl -s -X POST $BASE_URL/api/auth/register \
+  -H "Content-Type: application/json" \
+  -d '{"email": "test@example.com", "password": "SecurePassword123!", "username": "testuser"}' \
+  -w "\nHTTP Status: %{http_code}\n")
+echo "$REGISTER_RESPONSE"
+echo ""
+
+# Test 4: Login
+echo "4. Login:"
+LOGIN_RESPONSE=$(curl -s -X POST $BASE_URL/api/auth/login \
+  -H "Content-Type: application/json" \
+  -d '{"email": "test@example.com", "password": "SecurePassword123!"}' \
+  -w "\nHTTP Status: %{http_code}\n")
+echo "$LOGIN_RESPONSE"
+
+# Extract token
+TOKEN=$(echo "$LOGIN_RESPONSE" | grep -o '"access_token":"[^"]*"' | cut -d'"' -f4)
+echo ""
+echo "Extracted Token: ${TOKEN:0:20}..."
+echo ""
+
+# Test 5: Get user profile (only if we got a token)
+if [ -n "$TOKEN" ]; then
+  echo "5. Get User Profile:"
+  curl -s $BASE_URL/api/users/me \
+    -H "Authorization: Bearer $TOKEN" \
+    -w "\nHTTP Status: %{http_code}\n"
+  echo ""
+  
+  # Test 6: Logout
+  echo "6. Logout:"
+  curl -s -X POST $BASE_URL/api/auth/logout \
+    -H "Authorization: Bearer $TOKEN" \
+    -w "\nHTTP Status: %{http_code}\n"
+  echo ""
+else
+  echo "5. Get User Profile: SKIPPED (No token)"
+  echo ""
+fi
+
+echo "================================"
+echo "Tests Complete"
+echo "================================"