Allow Ecaz Ambassadors on the placed mobile stronghold

Share dynamic stronghold legality across placement, cancellation, bots and controls. Keep the HMS sheltered, preserve original fees and entry effects, and display its public Ambassador attached to the stronghold interior.

Cover genuine Basic/Advanced placement, paid movement entry, card continuations, prevention and native relocation. No Terror or direct-shipment permission is added.

docs/IMPLEMENTATION_STATUS.md

@@ -1,5 +1,31 @@
 # Dune implementation status
 
+## 24 October 2026 — Ecaz Ambassador on the placed HMS
+
+Share dynamic placement legality between the engine, projected choices,
+placement cancellation and minimal bots. A legitimately placed HMS is an
+eligible sheltered stronghold; absent/malformed pointers remain invalid.
+Preserve physical supply, increasing fee, occupancy and original Karama event.
+Public face-up markers use the HMS interior identity through native relocation.
+CHOAM/Ix discard continuations recognize that same actual stronghold location.
+Source composition does not extend Terror or other factions' direct shipment.
+
+Disjoint quote/source/controls lanes and bounded review pass12 files135/135,
+types/lint/build, twelve gameplay/control/GameTable SSR journeys and eight
+existing-profile continuations accepting eight proposals. Genuine public
+Ecaz/Ix/Guild setup, original undealt-card choices/lotteries and native HMS
+placement supply46 Basic or50 Advanced actions. Actual callbacks exercise
+paid placement and busy guards; entry/Emperor5/decline, held Karama,
+storm-point shelter, native next-Storm relocation and Basic CHOAM/Ix effects
+retain original forces/payment/entrant. Fixture feedback repairs absent optional
+fields, missing expansion flags and an invalid pointer; lint repairs seven
+floating test registrations. No installed played phase, army or reaction receipt.
+
+[Source, exact proof and limitations](ECAZ_AMBASSADORS_RULES.md#hms-implementation-and-proof)
+retain wider-combination, complete-mode and comprehensive/browser/deployed gates.
+Private final proof:20261024-ecaz-hms-ambassador/frozen-integrated-2.
+No strategy/calibration or saved-room/D1/reset/restart/deployment operation.
+
 ## 24 October 2026 — Basic Guild Ambassador No-Field
 
 Connect native concealed0/3/5 and explicit allied supplier/beneficiary consent