feat(page-data): add validation suggestions, repair path, and thinking fixes

Map Page Data failure codes to Chinese remediation hints, trigger one-shot
goosed repair for remediable cases, and recover poisoned thinking sessions.
Route local DeepSeek through the no-think proxy via host.docker.internal so
tool rounds no longer hit reasoning_content 400; document gate and case-study
scenarios for event registration repair.

Co-authored-by: Cursor <cursoragent@cursor.com>

services/orchestrator/worker.mjs

@@ -44,6 +44,8 @@ export function createConfiguredWorker({ env = process.env, fetchImpl = null } =
       ...(fetchImpl ? { fetchImpl } : {}),
       allowRemote: envFlag(env.MEMIND_EXECUTOR_ALLOW_REMOTE_GOOSED, false),
       tlsInsecure: envFlag(env.MEMIND_EXECUTOR_GOOSED_TLS_INSECURE, false),
+      provider: env.MEMIND_EXECUTOR_GOOSED_PROVIDER,
+      model: env.MEMIND_EXECUTOR_GOOSED_MODEL,
       workspaceResolver: async (reference) => workspaceAliases[reference?.id] ?? null,
     }));
   }