Connect Emperor Nexus extra revival with private saved continuation

Add the absent-Emperor Secret Ally alternative returning exactly three eligible forces free in Basic/Advanced base-faction Nexus games. Preserve ordinary force/free-revival allowances and the shared Advanced Fedaykin cap. Keep the action optional and private, consume the physical Nexus once, and validate durable source receipts through later ordinary revival and Ghola. Purchase timing remains pending the earlier uniform winner-payment UX question; partial returns and combined-module interactions remain guarded. No mode or publication gate opens.

Connect private controls, explicit physical elite selection, all four legal AI profiles and a dedicated rules checklist entry. Extend the reusable local prototype writer with genuine twelve-card Nexus setup. Independent review covers rules timing, private projection, physical custody, JSON and production SQLite restore, lost-response replay and competing requests. Seventeen focused effect cases and four prototype-writer cases pass.

Validation: typecheck, lint, 4649 offline tests, production build and 43 HTTP tests passed with unchanged source. Genuine-start Basic and Advanced samples completed in 715 and 263 actions with 19 and 7 periodic JSON restores, respectively, and no Emperor uses. Two explicitly staged continuations completed in 18 and 17 actions with one normal-force Emperor return each. All four had zero rejections and preserved exact Treachery, force, elite and Nexus custody; all fourteen final seat views restored unchanged. They are bounded continuation evidence, not natural full-game acceptance of the effect or AI calibration.

In the conserved staged browser scenario, Advanced Fremen returned three forces including one Fedaykin using the Nexus, then three normal forces using the ordinary allowance. Reserves rose from three to nine, Tanks fell from seven to one, spice stayed three and the physical Nexus was spent once. The inspector was readable, the action notice displayed, and pending/resolved refresh restoration, physical custody and private projection passed.

After the reported power outage, all 733 opening games and original seat/recovery records were preserved (767 after HTTP checks); database integrity and foreign keys passed. All 734 rooms immediately before broad verification remained unchanged. Reused the healthy server without restart, reset or recurring automation.

Verified source tree: fd09a4bc71018cb7ef98c7e25c25dacc495ffed304dbd0cdfa223e539e8fa5e1

docs/CURRENT_STATUS.md

@@ -6,19 +6,18 @@ gated.** Prototypes do not open completion or publication gates.
 
 ## Current checkpoint and work
 
-Latest verified checkpoint: `9f1f783`, private Mentat question preview.
-Types, lint, **4,605 offline tests**, build and **43 HTTP tests** passed.
-All 665 opening rooms and original seat/recovery records were preserved
-(699 after HTTP checks). The existing server was reused after the outage;
-Ecaz, Ixian and Mentat browser seats restored their private state and decisions.
-The only post-verification edit removed an extra newline in a developer document.
+Previous verified checkpoint: `d0dc700`, Bureaucrat payment redirection.
+Types, lint, **4,631 offline tests**, build and **43 HTTP tests** passed.
+All 699 opening rooms and original seat/recovery records were preserved
+(733 after HTTP checks). All 700 rooms present immediately before verification
+also remained unchanged. The healthy server was reused after the outage.
 
 [Mentat](MENTAT_QUESTION.md) connects private naming/disclosure before posture
 and faction powers, all four AI profiles and saved continuation in explicitly
 opted-in previews. Two controlled-shuffle genuine-setup samples finish. Ordinary
 activation still awaits the uniform private response UX decision.
 
-The current milestone connects [Bureaucrat payments](BUREAUCRAT_PAYMENTS.md):
+[Bureaucrat payments](BUREAUCRAT_PAYMENTS.md) connect
 ordinary auctions, shipment income, Richese sale proceeds and actual bribe
 transfers, with a once-per-phase optional redirection and preserved continuation.
 Qualifying allied funding, other payment families and combined-module acceptance
@@ -29,6 +28,21 @@ All 699 opening rooms and original seat/recovery records survived the reported
 outage. The healthy server was reused. The completed checkpoint's Git record
 contains final broad verification and post-HTTP preservation totals.
 
+Current checkpoint: [Emperor Nexus Secret Ally revival](NEXUS_EMPEROR_SECRET_ALLY_RUNTIME.md).
+Exactly three free returns, independent ordinary allowances, shared Fedaykin caps,
+private controls, four AI profiles and saved continuation are connected. Independent
+review and 17 focused effect tests pass. Two genuine-start and two explicitly staged
+samples finish with zero rejections; only the staged pair uses this effect. A staged
+browser exercise verifies a Fedaykin return, three ordinary returns and refresh.
+Final broad checks, preservation counts and Git delivery are recorded in the
+checkpoint commit and private report before handoff.
+
+The purchase alternative still needs a private post-win payment choice. The earlier
+question asks whether to allow a uniform winner payment step, including otherwise
+forced spice payments. No answer or purchase policy is assumed. All 733 opening
+rooms and seat/recovery records survived the latest outage unchanged; a new snapshot
+protects all 734 rooms before final verification. The healthy server is reused.
+
 ## Authoritative navigation
 
 - [Rules checklist](../game/reference.ts), topic `implementation-checklist` and
@@ -56,7 +70,7 @@ These links define bounded working behavior, not complete module certification.
 | Expansion factions | [Ixians/Tleilaxu](IX_PROTOTYPE.md) and [all seven faction selections](EXPANSION_FACTIONS_PROTOTYPE.md): genuine setup, Ecaz six-force placement, separate optional card variants, private controls and saved per-lot Ixian/Richese decline. Actual special-lot exchange remains pending. |
 | Leader Skills | [Common lifecycle](LEADER_SKILLS_RUNTIME.md), [known skilled capture](LEADER_SKILLS_CAPTURE.md), [Mentat question preview](MENTAT_QUESTION.md), [Bureaucrat payments](BUREAUCRAT_PAYMENTS.md), five battle disciplines, [Planetologist](PLANETOLOGIST_RULES.md), [Suk Graduate](SUK_GRADUATE_RULES.md), [Rihani and other battle effects](LEADER_BATTLE_EFFECTS.md), [Smuggler shipment](SMUGGLER_SHIPMENT.md) and [No-Field](SMUGGLER_NO_FIELD.md), [Sandmaster routes](SANDMASTER_MOVEMENT.md), [Banker spending](SPICE_BANKER_RUNTIME.md), [Diplomat defense](DIPLOMAT_DEFENSE.md). Remaining bands and combinations are explicit in those contracts. |
 | Discoveries | [Prototype](DISCOVERY_PROTOTYPE.md): genuine setup, Great Maker, seven cards/eight tokens, inspection and stash rewards, nested sites, signed later free entry, carried Ornithopter, sole Cistern, bounded Jacurutu income, Testing Station and Shrine. Orgiz and contested/mixed cases remain pending. |
-| Nexus/Homeworlds | [Decision index](RULE_DECISIONS.md) links each integrated faction family, native/borrowed effects, physical custody, private choices, payments and transport. [CHOAM Collection trade](NEXUS_CHOAM_SECRET_ALLY.md) is connected; its after-victory inspection remains pending. A source audit or helper alone is not a completed effect. |
+| Nexus/Homeworlds | [Decision index](RULE_DECISIONS.md) links each integrated faction family, native/borrowed effects, physical custody, private choices, payments and transport. [CHOAM Collection trade](NEXUS_CHOAM_SECRET_ALLY.md) and [Emperor extra revival](NEXUS_EMPEROR_SECRET_ALLY_RUNTIME.md) are connected; CHOAM inspection and Emperor purchase remain pending. A source audit or helper alone is not a completed effect. |
 | Truthtrance | [Spice facts](TRUTHTRANCE_SPICE_FACTS.md), [card counts](TRUTHTRANCE_CARD_COUNT.md), [hand inventory](TRUTHTRANCE_HAND_INVENTORY.md), and [Basic/no-Guild Advanced reserve-shipment promises](TRUTHTRANCE_SHIPMENT_PROMISES.md) use authoritative private state. Earlier readiness audits do not supersede these follow-ups. |
 | Other cards | [Sapho runtime](JUICE_OF_SAPHO_RUNTIME.md) includes first among remaining unstarted movement turns after Advanced Guild has finished. Richese card contracts and the checklist identify the other connected effects and explicit gaps. |
 | Multiplayer | Saved rooms/seats, [recovery](../README.md#saved-seats-and-reconnecting), uncertain-request retry, [own-seat AI](AUTOPILOT.md), and [voluntary seat handover](SEAT_HANDOVER.md) have connected controls and recovery evidence. |