feat(plugins): expose llm input/output hook payloads (openclaw#16724) thanks @SecondThread

Verified:
- pnpm build
- pnpm check
- pnpm test:macmini

Co-authored-by: SecondThread <18317476+SecondThread@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>

src/auto-reply/reply/agent-runner.ts

@@ -450,6 +450,7 @@ export async function runReplyAgent(params: {
           promptTokens,
           total: totalTokens,
         },
+        lastCallUsage: runResult.meta.agentMeta?.lastCallUsage,
         context: {
           limit: contextTokensUsed,
           used: totalTokens,