Add apps to the sub agent based on the dev container customization.
The implementation also provides the following env variables for use in
the devcontainer json
- `CODER_WORKSPACE_AGENT_NAME`
- `CODER_WORKSPACE_USER_NAME`
- `CODER_WORKSPACE_NAME`
- `CODER_DEPLOYMENT_URL`
Fixes https://github.com/coder/coder/issues/16268
- Adds `/api/v2/workspaceagents/:id/containers` coderd endpoint that allows listing containers
visible to the agent. Optional filtering by labels is supported.
- Adds go tools to the `coder-dylib` CI step so we can generate mocks if needed