fix(server): inject HostProcessPlatform into the Grok plan extractor

The plan.md path check read process.platform and process.env directly; thread
the host platform reference and the adapter's provider environment through
GrokAdapterV2Options instead.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2d4932fcf1Julius Marminge committed on 8/29/2026, 6:02:47 AMparent6d8b064
2 files changedLine totals unavailable