test(install): restore Bun mocks after installer tests

Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-openagent)

Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>

src/cli/cli-installer.test.ts

@@ -19,6 +19,7 @@ describe("runCliInstaller", () => {
   afterEach(() => {
     console.log = originalConsoleLog
     console.error = originalConsoleError
+    mock.restore()
   })
 
   it("blocks installation when OpenCode is below the minimum version", async () => {