feat: Add CrowdSec management endpoints and feature flags handler

- Implemented CrowdSec process management with start, stop, and status endpoints.
- Added import functionality for CrowdSec configuration files with backup support.
- Introduced a new FeatureFlagsHandler to manage feature flags with database and environment variable fallback.
- Created tests for CrowdSec handler and feature flags handler.
- Updated routes to include new feature flags and CrowdSec management endpoints.
- Enhanced import handler with better error logging and diagnostics.
- Added frontend API calls for CrowdSec management and feature flags.
- Updated SystemSettings page to manage feature flags and CrowdSec controls.
- Refactored logs and other components for improved functionality and UI consistency.

frontend/src/api/crowdsec.ts

@@ -0,0 +1,27 @@
+import client from './client'
+
+export async function startCrowdsec() {
+  const resp = await client.post('/admin/crowdsec/start')
+  return resp.data
+}
+
+export async function stopCrowdsec() {
+  const resp = await client.post('/admin/crowdsec/stop')
+  return resp.data
+}
+
+export async function statusCrowdsec() {
+  const resp = await client.get('/admin/crowdsec/status')
+  return resp.data
+}
+
+export async function importCrowdsecConfig(file: File) {
+  const fd = new FormData()
+  fd.append('file', file)
+  const resp = await client.post('/admin/crowdsec/import', fd, {
+    headers: { 'Content-Type': 'multipart/form-data' },
+  })
+  return resp.data
+}
+
+export default { startCrowdsec, stopCrowdsec, statusCrowdsec, importCrowdsecConfig }