Run CLI commands, tests, and debugging inside the skillshare devcontainer. Use this skill whenever you need to: execute skillshare CLI commands for verification, run Go tests (unit or integration), reproduce bugs, test new features, start the web UI, or perform any operation that requires a Linux environment. All CLI execution MUST happen inside the devcontainer — never run skillshare commands on the host. If you are about to use Bash to run `ss`, `skillshare`, `go test`, or `make test`, stop and use this skill first to ensure correct container execution.