refactor(cli): remove unused imports and variables

Eliminates no-unused-vars warnings across the CLI package by dropping
dead type imports, unused destructured helpers, and simplifying try/catch
blocks whose caught errors and intermediate results were never read.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

packages/cli/src/project-resolver.ts

@@ -868,7 +868,7 @@ export async function getProjectSummaryInfo(
   lastActivity: string | undefined;
   runtimeStatus: import("@fusion/engine").RuntimeStatus | "not_started";
 }> {
-  const central = await getCentralCore();
+  await getCentralCore();
   const pm = await getProjectManager();
 
   const [taskCounts, lastActivity, runtime] = await Promise.all([