refactor(core): derive catalog availability from integrations (#32272)

packages/core/src/plugin/provider/llmgateway.ts

@@ -1,13 +1,16 @@
 import { Effect } from "effect"
+import { Integration } from "../../integration"
 import { PluginV2 } from "../../plugin"
 
 export const LLMGatewayPlugin = PluginV2.define({
   id: PluginV2.ID.make("llmgateway"),
   effect: Effect.gen(function* () {
+    const integrations = yield* Integration.Service
     return {
       "catalog.transform": Effect.fn(function* (evt) {
         for (const item of evt.provider.list()) {
-          if (item.provider.enabled === false) continue
+          if (item.provider.disabled) continue
+          if (!(yield* integrations.get(Integration.ID.make(item.provider.id)))) continue
           if (item.provider.api.type !== "aisdk") continue
           if (item.provider.api.package !== "@ai-sdk/openai-compatible") continue
           if (item.provider.api.url !== "https://api.llmgateway.io/v1") continue