fix(tests): replace as any with typed PluginInput mocks

src/hooks/stop-continuation-guard/index.test.ts

@@ -2,6 +2,7 @@ import { afterEach, describe, expect, test } from "bun:test"
 import { mkdtempSync, rmSync } from "node:fs"
 import { join } from "node:path"
 import { tmpdir } from "node:os"
+import type { PluginInput } from "@opencode-ai/plugin"
 import type { BackgroundManager, BackgroundTask } from "../../features/background-agent"
 import { readContinuationMarker } from "../../features/run-continuation-state"
 import { createStopContinuationGuardHook } from "./index"
@@ -37,7 +38,7 @@ describe("stop-continuation-guard", () => {
         },
       },
       directory: createTempDir(),
-    } as any
+    } as unknown as PluginInput
   }
 
   function createBackgroundTask(status: BackgroundTask["status"], id: string): BackgroundTask {