Follow-up to the projection fix. The mechanism/policy split landed projection
on a graceful-degrade path, but I also made the setup, teardown, and terminal
wrappers silently absorb parse failures — which broke the existing contract
that `runWorktreeSetupInBackground` surfaces "Failed to parse paseo.json" to
the user when they invoke setup against a workspace with a malformed config.
Restore the throw, but with the path included and the underlying parse error
attached as `cause` (Pino expands it; UI surfaces the path + detail). Extract
`paseoConfigParseError` so spawnWorkspaceScript and the three wrappers throw
the same shape.
Also update opencode-agent.full-access.test.ts mode-order assertion that the
reorder commit forgot to update.
Mohamed Boudra
17b1d8f732