Add QA test outputs, build scripts, and Dockerfile validation

- Created `qa-test-output-after-fix.txt` and `qa-test-output.txt` to log results of certificate page authentication tests.
- Added `build.sh` for deterministic backend builds in CI, utilizing `go list` for efficiency.
- Introduced `codeql_scan.sh` for CodeQL database creation and analysis for Go and JavaScript/TypeScript.
- Implemented `dockerfile_check.sh` to validate Dockerfiles for base image and package manager mismatches.
- Added `sourcery_precommit_wrapper.sh` to facilitate Sourcery CLI usage in pre-commit hooks.

frontend/src/components/__tests__/SystemStatus.test.tsx

@@ -0,0 +1,42 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, waitFor } from '@testing-library/react'
+import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
+import SystemStatus from '../SystemStatus'
+import * as systemApi from '../../api/system'
+
+// Mock the API module
+vi.mock('../../api/system', () => ({
+  checkUpdates: vi.fn(),
+}))
+
+const renderWithClient = (ui: React.ReactElement) => {
+  const queryClient = new QueryClient({
+    defaultOptions: {
+      queries: {
+        retry: false,
+      },
+    },
+  })
+
+  return render(
+    <QueryClientProvider client={queryClient}>
+      {ui}
+    </QueryClientProvider>
+  )
+}
+
+describe('SystemStatus', () => {
+  it('calls checkUpdates on mount', async () => {
+    vi.mocked(systemApi.checkUpdates).mockResolvedValue({
+      available: false,
+      latest_version: '1.0.0',
+      changelog_url: '',
+    })
+
+    renderWithClient(<SystemStatus />)
+
+    await waitFor(() => {
+      expect(systemApi.checkUpdates).toHaveBeenCalled()
+    })
+  })
+})