https://agents.getardaro.com/receipt-intelligence https://agents.getardaro.com/receipt-intelligence/SKILL.md https://agents.getardaro.com/agent-services https://agents.getardaro.com/agent-services/receipt-intelligence/example https://agents.getardaro.com/openapi.json https://agents.getardaro.com/observatory https://agents.getardaro.com/observatory/submit https://agents.getardaro.com/llms.txt