The previous fix only covered create/start. projectOrName backs every
other service-targeting command too (stop, kill, pause, unpause, logs,
rm, down, ps, events), so they still surfaced the same two problems: a
raw "no such service" error for a job name, and -- when
COMPOSE_PROJECT_NAME is set -- a silent no-op, since projectOrName's
label-driven fallback swallows the load error entirely.
Fold the check into projectOrName so every caller is fixed at once,
instead of duplicating the wiring per command. start.go's own
job-handling code, now redundant, is removed; jobTargetErr and
unselectedJobs (cmd/compose/run.go) are unchanged, just called from one
more place.
Adds unit coverage for projectOrName itself (including the
COMPOSE_PROJECT_NAME path and the typo-correlation edge case) and e2e
coverage for two more callers (stop, down) to confirm the fix lives in
the shared helper rather than being re-implemented per command.
Signed-off-by: Nicolas De Loof <[email protected]>