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/hooks/__tests__/useAuth.test.tsx

@@ -0,0 +1,26 @@
+import { render, screen } from '@testing-library/react'
+import { describe, it, expect } from 'vitest'
+import { AuthContext } from '../../context/AuthContextValue'
+import { useAuth } from '../useAuth'
+
+const TestComponent = () => {
+  const auth = useAuth()
+  return <div>{auth.isAuthenticated ? 'auth' : 'no-auth'}</div>
+}
+
+describe('useAuth hook', () => {
+  it('throws if used outside provider', () => {
+    const renderOutside = () => render(<TestComponent />)
+    expect(renderOutside).toThrowError('useAuth must be used within an AuthProvider')
+  })
+
+  it('returns context inside provider', () => {
+    const fakeCtx = { user: { user_id: 1, role: 'admin', name: 'Test', email: 't@example.com' }, login: async () => {}, logout: () => {}, changePassword: async () => {}, isAuthenticated: true, isLoading: false }
+    render(
+      <AuthContext.Provider value={fakeCtx}>
+        <TestComponent />
+      </AuthContext.Provider>
+    )
+    expect(screen.getByText('auth')).toBeTruthy()
+  })
+})