Adds api/synthetic-report.ts, an in-memory registry + JSON->GameReport
decoder for synthetic-mode game sessions. The lobby grows a
import.meta.env.DEV-gated "Synthetic test reports" section with a
JSON file picker; loading a file registers the decoded report under
a synthetic-<uuid> id and navigates to /games/<id>/map.
The in-game shell layout detects the synthetic id range, takes the
report straight from the registry via gameState.initSynthetic, and
deliberately skips both galaxyClient.set and orderDraft.bindClient.
Order auto-sync stays silent: scheduleSync already short-circuits on
non-UUID game ids, and without a bound client the network path is
unreachable. applyOrderOverlay continues to project locally-valid
draft commands onto the rendered report so renames / production
choices / route edits are visible immediately.
A page reload loses the in-memory entry and redirects to /lobby —
synthetic mode is a debug affordance, not a session.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Ilia Denisov
8f320010c6