fix: unblock claude-cli live runs

src/agents/cli-backends.ts

@@ -43,7 +43,7 @@ const DEFAULT_CLAUDE_BACKEND: CliBackendConfig = {
   systemPromptArg: "--append-system-prompt",
   systemPromptMode: "append",
   systemPromptWhen: "first",
-  clearEnv: ["ANTHROPIC_API_KEY"],
+  clearEnv: ["ANTHROPIC_API_KEY", "ANTHROPIC_API_KEY_OLD"],
   serialize: true,
 };
 

src/agents/cli-runner.ts

@@ -455,6 +455,7 @@ export async function runCliAgent(params: {
     backend,
     prompt: params.prompt,
   });
+  const stdinPayload = stdin ?? "";
   const args = buildCliArgs({
     backend,
     modelId: normalizedModel,
@@ -526,7 +527,7 @@ export async function runCliAgent(params: {
         timeoutMs: params.timeoutMs,
         cwd: workspaceDir,
         env,
-        ...(stdin ? { input: stdin } : {}),
+        input: stdinPayload,
       });
 
       const stdout = result.stdout.trim();