Add the AgentAPI changes to support the feature that transmits boundary
logs from workspaces to coderd via the agent API for eventual re-emission to
stderr. The API handlers are stubs for now because I'm trying to land
this feature from multiple smaller PRs.
High level architecture:
- Boundary records resource access in batches and sends proto message to
agent
- Agent proxies messages to coderd **(captured by the API changes in
this PR)**
- coderd re-emits logs to stderr
RFC:
https://www.notion.so/coderhq/Agent-Boundary-Logs-2afd579be59280f29629fc9823ac41ba
