chore: drop dead imports across opencode/core/llm (#28720)

packages/core/src/plugin/boot.ts

@@ -1,6 +1,6 @@
 export * as PluginBoot from "./boot"
 
-import { Context, Deferred, Effect, Layer, Scope } from "effect"
+import { Context, Deferred, Effect, Layer } from "effect"
 import { AccountV2 } from "../account"
 import { AgentV2 } from "../agent"
 import { Catalog } from "../catalog"

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

@@ -1,6 +1,5 @@
 import { Effect } from "effect"
 import { PluginV2 } from "../../plugin"
-import { ProviderV2 } from "../../provider"
 
 export const VercelPlugin = PluginV2.define({
   id: PluginV2.ID.make("vercel"),

packages/core/test/plugin/provider-cerebras.test.ts

@@ -4,7 +4,7 @@ import { Catalog } from "@opencode-ai/core/catalog"
 import { PluginV2 } from "@opencode-ai/core/plugin"
 import { CerebrasPlugin } from "@opencode-ai/core/plugin/provider/cerebras"
 import { ProviderV2 } from "@opencode-ai/core/provider"
-import { it, model, provider } from "./provider-helper"
+import { it, model } from "./provider-helper"
 
 const cerebrasOptions: Record<string, unknown>[] = []