add taxi route endpoint

server/api/service/tools/latency.get.ts

@@ -0,0 +1,48 @@
+// server/api/llm/latency.get.ts
+import { createError } from 'h3'
+import { getOpenAIClient } from '../../../utils/openai'
+import { getServerRuntimeConfig } from '../../../utils/runtimeConfig'
+
+const SYSTEM_PROMPT =
+    'Check if the pilot readback contains ALL of: Frankfurt or EDDF, FL320, and 120.8 MHz. ' +
+    'Reply with single digit only: 1 = all present, 0 = one or more missing, 2 = invalid/unrelated.';
+
+const READBACK =
+    'Lufthanser four seven eight cleared fra via NORDA1A, climb 5000 feet, expect flight level tree too zero, dep 120 decimal 8, squawk 4213.';
+
+export default defineEventHandler(async () => {
+    const client = getOpenAIClient()
+    const { llmModel } = getServerRuntimeConfig()
+    const model = llmModel || 'chatgpt-5-nano'
+
+    const started = Date.now()
+
+    try {
+        const response = await client.chat.completions.create({
+            model,
+            messages: [
+                { role: 'system', content: SYSTEM_PROMPT },
+                { role: 'user', content: `${READBACK}` }
+            ],
+        })
+
+        const raw = response.choices?.[0]?.message?.content?.trim() || ''
+        const parsed = Number.parseInt(raw, 10)
+        const validResult = Number.isInteger(parsed) && parsed >= 0 && parsed <= 2 ? parsed : null
+        const latencyMs = Date.now() - started
+
+        return {
+            result: validResult,
+            raw,
+            latency_ms: latencyMs
+        }
+    } catch (error: any) {
+        const latencyMs = Date.now() - started
+        console.error('[LLM] Latency check failed:', error)
+        throw createError({
+            statusCode: error?.status ?? 500,
+            statusMessage: error?.message ?? 'Latency check failed',
+            data: { latency_ms: latencyMs }
+        })
+    }
+})