fix: relocate callerControlsHost from function signature to function body

The const declaration was incorrectly spliced into
buildAcpLoginProbeUnavailableCheck's parameter list during the rebase.
Move it to testClaudeAcpEnvironment where it is actually used.

Author: claude

packages/adapters/claude-local/src/server/acp.ts

@@ -539,7 +539,6 @@ function buildAcpAuthMissingChecks(input: {
  * success.
  */
 function buildAcpLoginProbeUnavailableCheck(
-  const callerControlsHost = ctx.callerControlsHost !== false;
   message: string,
   targetIsSandbox = false,
 ): AdapterEnvironmentCheck {
@@ -785,6 +784,7 @@ export async function testClaudeAcpEnvironment(
   const target = ctx.executionTarget ?? null;
   const targetIsRemote = target?.kind === "remote";
   const targetIsSandbox = target?.kind === "remote" && target.transport === "sandbox";
+  const callerControlsHost = ctx.callerControlsHost !== false;
 
   checks.push({
     code: "claude_engine_selected",