feat: add legacy endpoint migration and testing endpoint notice

packages/extension/src/agent/constants.ts

@@ -10,3 +10,21 @@ export const DEMO_CONFIG: LLMConfig = {
 	baseURL: DEMO_BASE_URL,
 	model: DEMO_MODEL,
 }
+
+/** Legacy testing endpoints that should be auto-migrated to DEMO_BASE_URL */
+export const LEGACY_TESTING_ENDPOINTS = [
+	'https://hwcxiuzfylggtcktqgij.supabase.co/functions/v1/llm-testing-proxy',
+]
+
+export function isTestingEndpoint(url: string): boolean {
+	const normalized = url.replace(/\/+$/, '')
+	return normalized === DEMO_BASE_URL || LEGACY_TESTING_ENDPOINTS.some((ep) => normalized === ep)
+}
+
+export function migrateLegacyEndpoint(config: LLMConfig): LLMConfig {
+	const normalized = config.baseURL.replace(/\/+$/, '')
+	if (LEGACY_TESTING_ENDPOINTS.some((ep) => normalized === ep)) {
+		return { ...DEMO_CONFIG }
+	}
+	return config
+}

packages/extension/src/agent/useAgent.ts

@@ -11,7 +11,7 @@ import type { LLMConfig } from '@page-agent/llms'
 import { useCallback, useEffect, useRef, useState } from 'react'
 
 import { MultiPageAgent } from './MultiPageAgent'
-import { DEMO_CONFIG } from './constants'
+import { DEMO_CONFIG, migrateLegacyEndpoint } from './constants'
 
 /** Language preference: undefined means follow system */
 export type LanguagePreference = SupportedLanguage | undefined
@@ -41,13 +41,19 @@ export function useAgent(): UseAgentResult {
 
 	useEffect(() => {
 		chrome.storage.local.get(['llmConfig', 'language']).then((result) => {
-			const llmConfig = (result.llmConfig as LLMConfig) ?? DEMO_CONFIG
+			let llmConfig = (result.llmConfig as LLMConfig) ?? DEMO_CONFIG
 			const language = (result.language as SupportedLanguage) || undefined
-			const full = { ...llmConfig, language }
-			if (!result.llmConfig) {
+
+			// Auto-migrate legacy testing endpoints
+			const migrated = migrateLegacyEndpoint(llmConfig)
+			if (migrated !== llmConfig) {
+				llmConfig = migrated
+				chrome.storage.local.set({ llmConfig: migrated })
+			} else if (!result.llmConfig) {
 				chrome.storage.local.set({ llmConfig: DEMO_CONFIG })
 			}
-			setConfig(full)
+
+			setConfig({ ...llmConfig, language })
 		})
 	}, [])