test: remove dead CLI test code (#491)

Co-authored-by: CodebuffAI <189203002+CodebuffAI@users.noreply.github.com>

Author: aether-agent[bot]

cli/src/__tests__/path-completion.test.ts

@@ -168,8 +168,6 @@ describe('getPathCompletion', () => {
       // Create a test directory structure we can control
       // Note: This test is tricky because we can't easily create dirs in home
       // So we'll test with the actual home directory if it has subdirs
-      const homeDir = os.homedir()
-
       // Try completing from home directory with tilde
       const result = getPathCompletion('~/')
 

cli/src/__tests__/unit/copy-button.test.ts

@@ -138,18 +138,14 @@ describe('CopyButton - copied state reset timing', () => {
   })
 
   test('multiple rapid clicks only create one active timer', () => {
-    let isCopied = false
     let currentTimerId: number | null = null
 
     const handleCopy = () => {
       if (currentTimerId !== null) {
         clearTimeout(currentTimerId)
       }
-      const newState = copyButtonHandlers.handleCopy()
-      isCopied = newState.isCopied
-      currentTimerId = setTimeout(() => {
-        isCopied = false
-      }, COPIED_RESET_DELAY_MS) as unknown as number
+      copyButtonHandlers.handleCopy()
+      currentTimerId = setTimeout(() => {}, COPIED_RESET_DELAY_MS) as unknown as number
     }
 
     handleCopy()