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/featureFlags.ts

@@ -0,0 +1,16 @@
+import client from './client'
+
+export async function getFeatureFlags(): Promise<Record<string, boolean>> {
+  const resp = await client.get<Record<string, boolean>>('/feature-flags')
+  return resp.data
+}
+
+export async function updateFeatureFlags(payload: Record<string, boolean>) {
+  const resp = await client.put('/feature-flags', payload)
+  return resp.data
+}
+
+export default {
+  getFeatureFlags,
+  updateFeatureFlags,
+}