Update docker to support API

[mgrimace]

Summary

This updates docker to support the new API mode. In short, with API_MODE: true set in the compose.yaml, the entrypoint starts API mode, then the scheduler acts on the API to invoke the script. API remains available while the container is up, and all API functions available (e.g., manually start, stop, etc.). All docker-based scheduling and +randomized time remain supported.

If API_MODE: false then falls back to old behaviour (i.e., cron invokes script directly, no API).

Changes

Minor updates to the server.js so that API bot logs are written to stdout/stderr and visible to docker logs.

Updated:

• dockerfile
• compose.yaml
• env.example
• server.js
• entrypoint.sh
• run_daily.sh

Added:

• trigger.js
• healthceck.sh

[mgrimace]

FYI I kept the lockfile behaviour for scheduled runs, with the API_MODE: true its mostly redudant, but not harmful and not completely useless. It'll prevent an edge case where a user starts a run in the period where a scheduled run is waiting to start because of the randomized start-time added.