Daemon now loads `[shared].registry_url`, `[shared].token`, and the
`[daemon]` section from the unified file via maestro-config. The
registry-WS endpoint is derived from `[shared].registry_url` (scheme
swap + `/daemon`), so operators configure a single base URL instead of
duplicating the daemon-specific endpoint.
Env-var renames (all per the new `MAESTRO_<SECTION>_<FIELD>` convention):
- MAESTROD_REGISTRY_URL → MAESTRO_SHARED_REGISTRY_URL (and the value is
now an http(s) base, not the ws daemon endpoint)
- MAESTROD_DAEMON_URL → MAESTRO_DAEMON_URL
- MAESTROD_DAEMON_ID → MAESTRO_DAEMON_ID
- MAESTROD_BIND_ADDR → MAESTRO_DAEMON_BIND_ADDR
- MAESTROD_CONFIG → MAESTRO_CONFIG
- MAESTRO_TOKEN → MAESTRO_SHARED_TOKEN
`maestrod configure` now writes the unified file with read-modify-write
so any existing `[cli]` / `[registry]` sections on the same host are
preserved. The interactive prompts reflect the new shape: registry URL
is asked for as a base URL, and the token prompt names the new env var.
Missing-file behaviour is hard cutover: if the config doesn't exist and
not every required field comes from env, the daemon errors with a
message pointing at `maestrod configure` and explicitly noting that the
legacy paths (~/.config/maestrod/config.toml) are no longer read.
e2e harness updated to match: `Daemon::spawn` takes the registry's HTTP
base, and the spawned subprocess sees the renamed env vars.
naps62-yolo
90127e0ed3