fix: resolve test environment loading race condition in CI

- Move getTestConfig() calls from module level to test execution time
- Add CI-specific debug logging to diagnose environment loading issues
- Add verification step in CI workflow to check .env.test availability
- Ensure environment variables are loaded before tests access config

The issue was that config was being accessed at module import time,
which could happen before the global setup runs in some CI environments.

.github/workflows/test.yml

@@ -19,6 +19,15 @@ jobs:
       - name: Install dependencies
         run: npm ci
       
+      # Verify test environment setup
+      - name: Verify test environment
+        run: |
+          echo "Current directory: $(pwd)"
+          echo "Checking for .env.test file:"
+          ls -la .env.test || echo ".env.test not found!"
+          echo "First few lines of .env.test:"
+          head -5 .env.test || echo "Cannot read .env.test"
+      
       # Run tests with coverage and multiple reporters
       - name: Run tests with coverage
         run: npm run test:ci