Prototype CHOAM Nexus Collection trade and inventory Discoveries

An unallied player holding CHOAM Nexus while CHOAM is absent can now discard one Worthless card during Spice Collection for two bank spice. The server spends both physical cards once, exposes only private legal card choices, and persists an already-paid discard receipt. Human controls and all four AI profiles share the action. The after-victory inspection alternative remains missing; normal unfinished modes and publication stay gated.

Independent review caught and fixed a queued Grumman Collection lock mismatch. Focused tests cover Basic/Advanced, actual card custody, private controls, all AI profiles, stale and wrong-mode rejection, Truthtrance and Grumman locks, JSON corruption/replay, competing production SQLite writes and private seat restoration.

A separate bounded acquisition helper recorded all seven Discovery Spice Cards, eight tokens and exact physical card placements from publisher-authored sources. Discovery runtime remains missing.

Validation: types, lint, 4,217 offline tests, production build and 40 HTTP tests passed. Durations: check 139298 ms; build 6617 ms; HTTP 24329 ms. Source fingerprint dfdaaf8bafe69acd31c9d0afc13f7a0d070da43deb544f091e95fe840b399493; private report under ~/.local/share/dune/checkpoints/20260913-choam-nexus-trade/verification/report.json. Browser reference search, Prototyped label and related Collection link checked. All 95 opening saved rooms unchanged; 30 HTTP test rooms added, 125 total. No server restart or database reset.

Efficiency counter: 59,982,405 at batch start; 60,581,959 after broad verification, delta 599,554 aggregate tokens before final preservation/Git/usage checks. One newly playable function plus the acquired Discovery inventory; this is not full CHOAM or Nexus compliance.

docs/CURRENT_STATUS.md

@@ -4,6 +4,8 @@ Updated 13 September 2026. This is the short navigation dashboard; detailed evid
 
 ## Evidence and source of truth
 
+- Ix prototype checkpoint `5a76ae0`: types, lint, **4,211 offline tests**, build and **40 HTTP tests** passed. Genuine Basic/Advanced setup and two seeded complete simulations were exercised; a short browser game finished with private hand restoration. All 64 opening saved rooms were preserved; 31 QA rooms were added. This is bounded prototype evidence, not complete Ix compliance.
+
 - [Rules implementation checklist](../game/reference.ts): `RULE_TOPICS`, topic `implementation-checklist`, and each feature's implementation, controls, AI, documentation and verification entries. Coverage is per stated boundary, not an implicit whole-game certificate.
 - [Latest verified gameplay checkpoint](IMPLEMENTATION_STATUS.md): Truthtrance hand inventory, 13 September 2026 (`7454456`): types, lint, **4,200 offline tests**, production build and **40 HTTP tests** passed, with a phone/browser refresh journey and preserved saved games. These are recorded results, not checks rerun for this dashboard.
 - Latest verification checkpoint `4a0b1ee`: genuine Advanced full-plan interaction tests; types, lint and **4,205 offline tests** passed. Private inspection restored after restart, with desktop/phone checks and all 64 saved games unchanged. No runtime change; prior build/HTTP evidence applies.
@@ -48,8 +50,11 @@ Likewise, the [Truthtrance readiness audit](TRUTHTRANCE_NONBATTLE_READINESS_2026
 The first connected batch is the [Ixians & Tleilaxu prototype](IX_PROTOTYPE.md):
 genuine setup, both expansion factions, full Ix deck and Sandtrout, shared human/AI
 controls and saved continuation. The checklist now distinguishes its Prototyped
-development stage from Partial rules coverage. Discoveries remain missing; their
-seven spice cards and eight token faces need a verified inventory and adapters.
+development stage from Partial rules coverage. The next connected action is the [CHOAM Nexus Collection trade](NEXUS_CHOAM_SECRET_ALLY.md),
+with private controls, all four AI profiles and a saved payment/discard continuation.
+Its after-victory inspection remains missing. [Discovery components](DISCOVERY_COMPONENTS.md)
+now records all seven spice cards, eight tokens and exact card placements;
+Discovery runtime and controls remain missing.
 
 The user changed the development order on 13 September: get working prototypes
 of all remaining functions into the game, then use integration and play to find