Preserve Basic shared arrival reactions through Semuta

Admit the original ordered Ecaz/Moritani entry in bare Basic Richese games, retain both native opportunities during fresh discard recovery, and bind each suspended child to its actual arrival. Show the current discard response in the table banner.

Cover real five-seat setup and placements, both owner orders, physical payouts/draws/gifts, persistent controls and minimal legal bot participation.

docs/SEMUTA_SOURCE_UPDATE_20260907.md

@@ -2,6 +2,68 @@
 
 7 September 2026. Read `docs/SEMUTA_DRUG_ENGINE_AUDIT.md` in full, inspected the physical card again, checked current capacity/recovery code, and freshly searched publisher sources. No project runtime edits.
 
+## Basic shared Ambassador and Terror arrival — 24 October 2026
+
+**Prototyped / Partial.** The existing bare Basic Richese profile now admits
+an ordinary paid entry that originally qualifies for both native markers.
+Keep the [selected provisional owner order](MORITANI_ENTRY_TIMING.md#selected-bounded-overlap-order--29-september-2026):
+this is composition of the existing interpretation, not a new publisher ruling.
+Both optional opportunities belong to the same committed shipment or movement.
+
+CHOAM/Ix Ambassador and Sabotage/Robbery overflow fresh groups can each pause
+for Semuta while the other owner's earned opportunity remains queued. Bind the
+suspended child to the signed original parent, current owner order/stage,
+owner/token/event, entry cause, territory/sector, turn/phase and ordinary return;
+Terror also keeps the original entering amount and elite count. No new saved
+field or receipt/signature format is introduced. CHOAM credit and the Robbery
+draw already committed before their discard remain paid/drawn once. Ix draws
+one replacement afterward; Sabotage finishes its original gift choice before
+the second owner. Neither path replays the physical entry or its payment.
+One Semuta cannot be spent on both fresh groups. Empty CHOAM creates no empty
+event, and the existing full-hand exchange remains available.
+
+The table banner labels storm order provisional and says the shared fresh
+discard finishes before the next native decision. Actual Continue/Commit/Select
+controls remain persistent, event-bound and disabled while busy. Minimal bots
+use their own entitled projected choices; no strategy refinement occurs.
+
+The source uses genuine five-seat Basic Ecaz/CHOAM/Richese/Guild/Moritani setup
+with35 main cards and10 cache cards, original unopened card/Spice positions
+and nine selected original Ambassador packet draws. Actual lobby circles set
+either owner order. Guild buys Semuta for1, Ecaz buys an ordinary card for1 and
+pays its actual turn-one placement, and the original Mentat opportunity places
+Terror at the same Sietch. Legal later1+1 Storm dials reach turn2; the caller
+makes the actual destination shipment or move after a paid Ridge Flat shipment.
+These139–142 source actions exclude the inherited constructor's unused entry
+branch. A prior transfer of the paid Semuta to Richese, Robbery's four-card
+hand and optional claimant full hand are explicitly conserved acquisitions;
+no clock, wallet, force, token or pending receipt is installed.
+
+The first source reproduces the original arrival-preflight rejection. With
+parent admission alone, its CHOAM discard skips Semuta and opens Terror; the
+source-qualified child guards repair that second failure. Final **12-file144/144**,
+`npm run check:quick` and production build pass. Eight actual gameplay/control/
+GameTable SSR journeys cover both orders, CHOAM/Ix, Sabotage/Robbery, selected
+BG copy/full hand, separate events and actual movement end. Eight existing
+profiles continue the original suspended groups with69 accepted proposals.
+A null-vs-unopened optional-field test, two const declarations and an older
+Truthtrance test's obsolete Orni exclusion were repaired during feedback.
+
+Private proof: `/home/quintine/.local/share/dune/checkpoints/20261024-semuta-arrival-overlap/`,
+`frozen-integrated-3/report.json`, `runtime-smoke.json`, HTML/logs and
+`verified-files.json`. Before final prose: base7b9938219d7f3e0e3b9f82ae752ad368b26fe901,
+source treeba53b110f9b3ca6b0d6169f23f0167a24bcdc90dabe73484bd14ad6d77f1a7ff,
+2673 tracked/nonignored files unchanged throughout verification. Four final
+prose/reference overlays retain code/test hashes; delivery verifies local links,
+evidence paths, reference syntax/keys, explicit staging and remote push.
+
+Native Advanced E3, optional combined profiles, unsupported child effects and
+wider originating-card/shared-entry chains remain unfinished. The unchanged
+prior module/entry guards do not certify complete modes. Framework aliases/CSS
+stubs mean SSR is not browser/visual/deployed acceptance. Comprehensive rules,
+saved-game/privacy/custody assurance and full AI/calibration remain due. No saved
+room, D1, reset, restart or deployment operation occurred.
+
 ## Native Ornithopter movement and arrival — 24 October 2026
 
 **Prototyped / Partial.** Fresh bare Basic Richese tables with selected native
@@ -27,10 +89,10 @@ Semuta on Ornithopter cannot spend it again on that later group. Passing the
 first group can preserve it for an eligible later card.
 
 This composes existing printed movement/discard mechanics and the current
-Semuta protocol, not a new publisher timing ruling. Ambassador/Terror overlap
-keeps its existing preflight/order: Ambassador discard admission remains guarded
-while an overlap is active. Other nested arrivals, native Advanced E3,
-optional combinations, complete modes and final acceptance remain unfinished.
+Semuta protocol, not a new publisher timing ruling. Ordinary shared-entry
+recovery is prototyped above; a full originating-card/shared-entry chain has
+no separate three-group runtime proof here. Other nested arrivals, native
+Advanced E3, optional combinations, complete modes and final acceptance remain unfinished.
 
 ### Native Ornithopter source and proof