Add reusable base game samples across player counts

The existing offline faction runner now selects genuine Basic and Advanced base games with two through six players. Original six expansion defaults and seed offsets remain stable; player-count filters require the explicit base profile. Saved AI profiles choose every setup and game action. This replaces repeated private harness copies while preserving source-bound private reports, failed traces and explicit snapshot resume.

Shared custody checks include every physical Treachery zone, nonnegative integer resources, twenty-force totals, the distinct Emperor/Fremen/Ixian elite totals and subsets, and canonical base Traitor identities after dealing. Rejected actions must leave their input unchanged; periodic JSON restoration compares all private views and excludes rival private hand/spice/Traitor/Face Dancer fields. Optional modules and separate private previews cannot be resumed as ordinary fixed scenarios. Resume still requires checking original setup provenance and intentionally restarts the selected random stream.

Independent review caught and corrected seven-cyborg accounting, save-derived Traitor expectations, missing elite records and private-preview classification. Meaningful regressions cover those failures plus strict filters, original names/seeds, failed subprocess reporting, source stability and resume. Types, lint and 4823 offline tests pass. No application, dependency, HTTP or database code changed, so build/HTTP suites were not repeated.

All ten base and six existing expansion samples completed on the final unchanged source: 6746 accepted actions, 175 periodic restores, 82 rejected candidates retained in traces. The expansion guarded-arrival fallbacks remain visible; these samples do not certify every faction, optional module, player-count rule or difficulty ordering. Exact expansion Traitor/Face Dancer custody still needs its own adapter. The earlier pilot/source-changed report remains private; the required check was repeated after the late review correction rather than accepting results from changing source.

All 1038 opening games and original seat/recovery records are unchanged; 1038 rooms remain. SQLite integrity and foreign keys pass. The existing QA table restored its saved seat and fulfilled shipment after browser refresh. The healthy server was reused without reset or restart.

The rules register now explicitly records the Moritani Secret Ally after-loss privacy blocker. A holder-only pause exposes its hidden Nexus; the existing alliance-retention helper does not resolve the shared pending response UX decision. No duplicate user question, new house rule or mode/publication gate change was introduced.

Verified source tree: 85d5a53fa72efb9704c1828526aaccba1554670307ce476f729eae9c5c4abff9

docs/RULE_DECISIONS.md

@@ -67,6 +67,7 @@ These are unresolved in the cited records. Do not infer an answer from elapsed t
 | Jacurutu physical dial | The user question asks whether the losing player should choose the physical normal/elite forces represented by its dial. When legal Advanced allocations produce different rewards, income remains explicitly unpaid; numeric wheel subtraction is not a ruling. | [Discovery interpretations](DISCOVERY_PROTOTYPE.md#interpretations-retained-for-refinement) |
 | Testing Station contest/timing | Only sole non-advisor occupation is prototyped. Two-occupant priority/stacking remains unresolved; opening after the ordinary storm-card window is an explicit source-timing inference. Weather Control is excluded by the printed text. | [Discovery interpretations](DISCOVERY_PROTOTYPE.md#interpretations-retained-for-refinement) |
 | CHOAM Secret Ally battle timing | The printed after-victory inspection is optional and the Nexus identity stays secret. No existing postbattle choice covers every winner: a pause only for a holder leaks ownership, precommitment removes the after-win choice, and a universal window makes nonholders pass. The product-exception question has been sent; no timing policy is implemented pending the answer. Ordinary Karama cancellation is also not established by the retrieved sources. | [After-victory inspection audit](NEXUS_CHOAM_SECRET_ALLY.md#after-victory-inspection-audit) |
+| Moritani Secret Ally battle timing | The optional retention choice follows a battle loss while the Nexus remains secret until use. Automatically continuing nonholders but pausing holders exposes custody; earlier precommitment removes the after-loss choice. A universal loser confirmation needs the same pending UX exception as other hidden reactive cards. The existing alliance retention/cleanup code does not resolve this timing problem; no duplicate user question has been sent. | [Nexus retention boundary](NEXUS_CARD_RULES.md#moritani-secret-ally-retention-timing) |
 | Emperor Secret Ally purchase timing | The purchase choice follows winning the bid. A holder-only payment pause exposes concealed card eligibility, while per-bid preauthorization moves the choice earlier. The user has been asked whether to permit a uniform winner payment confirmation, including sole spice payments, or retain the purchase gate. No answer is assumed; the independent three-force revival grant can proceed. | [Purchase source contract](NEXUS_EMPEROR_RULES.md#secret-ally-retain-the-actual-purchase-price) |
 | Discovery prototype inferences | Free entry uses storm order and ordinary source-storm restrictions; these are general-rule inferences. Great Maker currently follows ordinary first-turn worm skipping and Sandtrout suppression; an exhausted token type creates no replacement token. These preserve current source interpretation and physical inventory but are not separately confirmed rulings or complete combined-module certification. | [Interpretations for refinement](DISCOVERY_PROTOTYPE.md#interpretations-retained-for-refinement) |
 | Other Homeworld combinations | Population/force splitting, removal custody, replacement shortages, income accounting and placement ordering remain local to their detailed contracts. | [Homeworld rules](HOMEWORLD_RULES.md), [occupation](HOMEWORLD_OCCUPATION_RULES.md) and the effect documents above |