fix: pick up reasoning.effort level in responses route

Author: jcaose

src/routes/responses/route.ts

@@ -20,7 +20,8 @@ responsesRoutes.post("/", async (c) => {
     await checkRateLimit(state)
 
     const payload = await c.req.json<ResponsesPayload>()
-    const { level } = parseModelNameWithLevel(payload.model)
+    const { level: levelFromModel } = parseModelNameWithLevel(payload.model)
+    const level = levelFromModel ?? payload.reasoning?.effort ?? undefined
 
     if (state.manualApprove) await awaitApproval()