feat: migrate runtime backend to node server

server-node/src/app.ts

@@ -0,0 +1,69 @@
+import express from 'express';
+import pinoHttp from 'pino-http';
+
+import type { AppContext } from './context.js';
+import { errorHandler } from './middleware/errorHandler.js';
+import { requestIdMiddleware } from './middleware/requestId.js';
+import { createAuthRoutes } from './routes/authRoutes.js';
+import { createRuntimeRoutes } from './routes/runtimeRoutes.js';
+
+export function createApp(context: AppContext) {
+  const app = express();
+  const createHttpLogger = pinoHttp as unknown as (options: Record<string, unknown>) => express.RequestHandler;
+
+  app.disable('x-powered-by');
+
+  app.use(requestIdMiddleware);
+  app.use(
+    createHttpLogger({
+      logger: context.logger,
+      genReqId: (request) => request.requestId,
+      customProps: (request: express.Request) => ({
+        request_id: request.requestId,
+        user_id: request.userId ?? null,
+      }),
+      customSuccessObject: (
+        request: express.Request,
+        response: express.Response,
+        baseObject: Record<string, unknown> & { responseTime?: number },
+      ) => ({
+        ...baseObject,
+        request_id: request.requestId,
+        user_id: request.userId ?? null,
+        method: request.method,
+        path: request.url,
+        status: response.statusCode,
+        latency_ms: baseObject.responseTime,
+      }),
+      customErrorObject: (
+        request: express.Request,
+        response: express.Response,
+        error: unknown,
+        baseObject: Record<string, unknown> & { responseTime?: number },
+      ) => ({
+        ...baseObject,
+        request_id: request.requestId,
+        user_id: request.userId ?? null,
+        method: request.method,
+        path: request.url,
+        status: response.statusCode,
+        latency_ms: baseObject.responseTime,
+        err: error,
+      }),
+    }),
+  );
+  app.use(express.json({ limit: '10mb' }));
+
+  app.get('/healthz', (_request, response) => {
+    response.json({
+      ok: true,
+      service: 'genarrative-node-server',
+    });
+  });
+
+  app.use('/api/auth', createAuthRoutes(context));
+  app.use('/api', createRuntimeRoutes(context));
+
+  app.use(errorHandler);
+  return app;
+}