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>

.github/workflows/test.yml

@@ -0,0 +1,54 @@
+name: Test
+
+on:
+  push:
+    branches: [main, dev]
+  pull_request:
+    branches: [main, dev]
+
+jobs:
+  backend-tests:
+    name: Backend Tests
+    runs-on: ubuntu-latest
+    continue-on-error: true  # Don't block PRs
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.23'
+
+      - name: Download dependencies
+        run: go mod download
+
+      - name: Run tests
+        run: go test -v ./...
+
+      - name: Generate coverage
+        run: go test -coverprofile=coverage.out ./...
+        continue-on-error: true
+
+  frontend-tests:
+    name: Frontend Tests
+    runs-on: ubuntu-latest
+    continue-on-error: true  # Don't block PRs
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+          cache-dependency-path: web/package-lock.json
+
+      - name: Install dependencies
+        run: cd web && npm ci
+
+      - name: Run tests
+        run: cd web && npm run test