feat: add gateway management features and settings

- Implemented new API routes for handling logs and settings related to the gateway.
- Added a new Gateway section in the General Settings panel to manage gateway status and auto-start options.
- Introduced a state management hook for gateway settings, including status, logs, and auto-start functionality.
- Updated configuration service to include gateway auto-start setting.
- Enhanced internationalization support for new gateway-related messages.
- Refactored existing settings store to accommodate new gateway settings.
- Cleaned up code and improved logging functionality.

electron/api/routes/logs.ts

@@ -0,0 +1,35 @@
+import logManager from '@electron/service/logger';
+import type { HostApiResult } from '@src/types/runtime';
+import type { HostApiContext } from '../context';
+import type { NormalizedHostApiRequest } from '../route-utils';
+import { fail, ok } from '../route-utils';
+
+const DEFAULT_TAIL_LINES = 100;
+
+function parseTailLines(rawValue: string | null): number {
+  const parsed = Number(rawValue ?? DEFAULT_TAIL_LINES);
+  if (!Number.isFinite(parsed)) {
+    return DEFAULT_TAIL_LINES;
+  }
+
+  return Math.max(1, Math.floor(parsed));
+}
+
+export async function handleLogRoutes(
+  request: NormalizedHostApiRequest,
+  _ctx: HostApiContext,
+): Promise<HostApiResult<unknown> | null> {
+  const { pathname, method, url } = request;
+
+  if (pathname === '/api/logs' && method === 'GET') {
+    try {
+      return ok({
+        content: await logManager.readRecentLogText(parseTailLines(url.searchParams.get('tailLines'))),
+      });
+    } catch (error) {
+      return fail(500, error instanceof Error ? error.message : String(error));
+    }
+  }
+
+  return null;
+}