Closes#178.
The backend provision functions now receive a Bottle handle with
exec / cp_in methods instead of a raw target string. Provisioner
modules use bottle.exec and bottle.cp_in in place of inlined
subprocess.run(["docker", "exec"/"cp", ...]) and direct
_smolvm.machine_cp / machine_exec calls. This decouples the
provisioners from backend-specific runtime primitives so future
refactors (e.g. the supervise rework) can swap the bottle's exec
implementation without touching every provisioner.
Each launch.py constructs the Bottle handle before calling
provision so it can be passed in; provision_prompt's return value
is wired back onto the bottle's prompt path attribute after the
fact.
Move git_gate_plan, egress_plan, supervise_plan, and agent_provision
from DockerBottlePlan and SmolmachinesBottlePlan into BottlePlan.
Replace the abstract print method with a single concrete implementation
that renders git gate entries as "name → upstream_host:upstream_port"
and egress routes with conditional "[auth:scheme]" annotations.
didericis-claude
didericis-codex
didericis