eve: agent AI without “plumbing” (and with a structure that fits in a folder)

eve proposes a standard folder-based structure for AI agents, with `instruction.md` plus separate directories for channels, connections, schedules, skills, and tools.

The goal is to move repetitive infrastructure out of agent code, including integrations, authentication, scheduled jobs, sandboxes, and human approvals.

Developers focus on defining behavior, while reusable config-as-code handles plumbing and makes agents easier to version and review through PRs.

The approach aims to speed up production-ready agent development and improve security, separation of concerns, and reuse across teams.