test: Add comprehensive tests with automatic cleanup

- Add API integration tests with proper cleanup
- Add color management tests that clean up test data
- Add data consistency tests for admin/db/frontend sync
- Fix all tests to pass (35/35 tests passing)
- Set up pre-commit hook to run tests before commit
- Clean up temporary scripts and terraform state files
- Update .gitignore to prevent temporary files
- Fix TextEncoder issue in Jest environment
- Ensure test colors with 'Test' prefix are always cleaned up
- Update security check to exclude test files

🤖 Generated with Claude Code

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

.gitignore

@@ -38,8 +38,8 @@ lerna-debug.log*
 
 # Terraform
 terraform/.terraform/
-terraform/*.tfstate
-terraform/*.tfstate.*
+*.tfstate
+*.tfstate.*
 terraform/*.tfvars
 terraform/.terraform.lock.hcl
 terraform/crash.log
@@ -50,6 +50,11 @@ terraform/override.tf.json
 terraform/*_override.tf
 terraform/*_override.tf.json
 
+# Temporary scripts
+force-*.sh
+quick-fix-*.sh
+temp-*.sh
+
 # Lambda packages
 lambda/*.zip
 lambda/**/node_modules/