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/featureFlags.test.ts

@@ -0,0 +1,26 @@
+import { vi, describe, it, expect } from 'vitest'
+
+// Mock the client module which is an axios instance wrapper
+vi.mock('./client', () => ({
+  default: {
+    get: vi.fn(() => Promise.resolve({ data: { 'feature.global.enabled': true } })),
+    put: vi.fn(() => Promise.resolve({ data: { status: 'ok' } })),
+  },
+}))
+
+import { getFeatureFlags, updateFeatureFlags } from './featureFlags'
+import client from './client'
+
+describe('featureFlags API', () => {
+  it('fetches feature flags', async () => {
+    const flags = await getFeatureFlags()
+    expect(flags['feature.global.enabled']).toBe(true)
+    expect((client.get as any)).toHaveBeenCalled()
+  })
+
+  it('updates feature flags', async () => {
+    const resp = await updateFeatureFlags({ 'feature.global.enabled': false })
+    expect(resp).toEqual({ status: 'ok' })
+    expect((client.put as any)).toHaveBeenCalledWith('/feature-flags', { 'feature.global.enabled': false })
+  })
+})