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/api/backups.ts

@@ -0,0 +1,25 @@
+import client from './client';
+
+export interface BackupFile {
+  filename: string;
+  size: number;
+  time: string;
+}
+
+export const getBackups = async (): Promise<BackupFile[]> => {
+  const response = await client.get<BackupFile[]>('/backups');
+  return response.data;
+};
+
+export const createBackup = async (): Promise<{ filename: string }> => {
+  const response = await client.post<{ filename: string }>('/backups');
+  return response.data;
+};
+
+export const restoreBackup = async (filename: string): Promise<void> => {
+  await client.post(`/backups/${filename}/restore`);
+};
+
+export const deleteBackup = async (filename: string): Promise<void> => {
+  await client.delete(`/backups/${filename}`);
+};