test: Add minimal UT infrastructure and fix Issue #227

This commit sets up a minimal, KISS-principle testing infrastructure
for both backend and frontend, and includes the fix for Issue #227.
Backend Changes:
- Add Makefile with test commands (test, test-backend, test-frontend, test-coverage)
- Add example test: config/database_test.go
- Fix Go 1.25 printf format string warnings in trader/auto_trader.go
  (Changed log.Printf to log.Print for non-format strings)
- All backend tests pass ✓
Frontend Changes:
- Add Vitest configuration: web/vitest.config.ts (minimal setup)
- Add test utilities: web/src/test/test-utils.tsx
- Add example test: web/src/App.test.tsx
- Add dependencies: vitest, jsdom, @testing-library/react
- All frontend tests pass ✓
Issue #227 Fix:
- Fix AITradersPage to allow editing traders with disabled models/exchanges
- Change validation to use allModels/allExchanges instead of enabledModels/enabledExchanges
- Add comprehensive tests in web/src/components/AITradersPage.test.tsx
- Fixes: https://github.com/tinkle-community/nofx/issues/227
CI/CD:
- Add GitHub Actions workflow: .github/workflows/test.yml
- Non-blocking tests (continue-on-error: true)
- Runs on push/PR to main and dev branches
Test Results:
- Backend: 1 test passing
- Frontend: 5 tests passing (including 4 for Issue #227)
Co-Authored-By: tinkle-community <tinklefund@gmail.com>

Makefile

@@ -0,0 +1,153 @@
+# NOFX Makefile for testing and development
+
+.PHONY: help test test-backend test-frontend test-coverage clean
+
+# Default target
+help:
+	@echo "NOFX Testing & Development Commands"
+	@echo ""
+	@echo "Testing:"
+	@echo "  make test                 - Run all tests (backend + frontend)"
+	@echo "  make test-backend         - Run backend tests only"
+	@echo "  make test-frontend        - Run frontend tests only"
+	@echo "  make test-coverage        - Generate backend coverage report"
+	@echo ""
+	@echo "Build:"
+	@echo "  make build                - Build backend binary"
+	@echo "  make build-frontend       - Build frontend"
+	@echo ""
+	@echo "Clean:"
+	@echo "  make clean                - Clean build artifacts and test cache"
+
+# =============================================================================
+# Testing
+# =============================================================================
+
+# Run all tests
+test:
+	@echo "🧪 Running backend tests..."
+	go test -v ./...
+	@echo ""
+	@echo "🧪 Running frontend tests..."
+	cd web && npm run test
+	@echo "✅ All tests completed"
+
+# Backend tests only
+test-backend:
+	@echo "🧪 Running backend tests..."
+	go test -v ./...
+
+# Frontend tests only
+test-frontend:
+	@echo "🧪 Running frontend tests..."
+	cd web && npm run test
+
+# Coverage report
+test-coverage:
+	@echo "📊 Generating coverage..."
+	go test -coverprofile=coverage.out ./...
+	go tool cover -html=coverage.out -o coverage.html
+	@echo "✅ Backend coverage: coverage.html"
+
+# =============================================================================
+# Build
+# =============================================================================
+
+# Build backend binary
+build:
+	@echo "🔨 Building backend..."
+	go build -o nofx
+	@echo "✅ Backend built: ./nofx"
+
+# Build frontend
+build-frontend:
+	@echo "🔨 Building frontend..."
+	cd web && npm run build
+	@echo "✅ Frontend built: ./web/dist"
+
+# =============================================================================
+# Development
+# =============================================================================
+
+# Run backend in development mode
+run:
+	@echo "🚀 Starting backend..."
+	go run main.go
+
+# Run frontend in development mode
+run-frontend:
+	@echo "🚀 Starting frontend dev server..."
+	cd web && npm run dev
+
+# Format Go code
+fmt:
+	@echo "🎨 Formatting Go code..."
+	go fmt ./...
+	@echo "✅ Code formatted"
+
+# Lint Go code (requires golangci-lint)
+lint:
+	@echo "🔍 Linting Go code..."
+	golangci-lint run
+	@echo "✅ Linting completed"
+
+# =============================================================================
+# Clean
+# =============================================================================
+
+clean:
+	@echo "🧹 Cleaning..."
+	rm -f nofx
+	rm -f coverage.out coverage.html
+	rm -rf web/dist
+	go clean -testcache
+	@echo "✅ Cleaned"
+
+# =============================================================================
+# Docker
+# =============================================================================
+
+# Build Docker images
+docker-build:
+	@echo "🐳 Building Docker images..."
+	docker compose build
+	@echo "✅ Docker images built"
+
+# Run Docker containers
+docker-up:
+	@echo "🐳 Starting Docker containers..."
+	docker compose up -d
+	@echo "✅ Docker containers started"
+
+# Stop Docker containers
+docker-down:
+	@echo "🐳 Stopping Docker containers..."
+	docker compose down
+	@echo "✅ Docker containers stopped"
+
+# View Docker logs
+docker-logs:
+	docker compose logs -f
+
+# =============================================================================
+# Dependencies
+# =============================================================================
+
+# Download Go dependencies
+deps:
+	@echo "📦 Downloading Go dependencies..."
+	go mod download
+	@echo "✅ Dependencies downloaded"
+
+# Update Go dependencies
+deps-update:
+	@echo "📦 Updating Go dependencies..."
+	go get -u ./...
+	go mod tidy
+	@echo "✅ Dependencies updated"
+
+# Install frontend dependencies
+deps-frontend:
+	@echo "📦 Installing frontend dependencies..."
+	cd web && npm install
+	@echo "✅ Frontend dependencies installed"