Implement Grumman collection and private stacked Terror choices

Add conserved token collection with four bank spice, owner-only stack selection, recovery proofs, controls and AI. Preserve unresolved removal and expansion release gates. Verified 3712 offline cases, types, lint, production build, 40 HTTP cases, three-seat desktop/mobile play, and unchanged 3081 preexisting saved games.

game/reference.ts

@@ -3134,6 +3134,8 @@ export const RULE_TOPICS: RuleTopic[] = [
       'After a supported Atreides victory, Caladan with at least six native reserves may add one reserve force to the battle location if an Atreides force survives there. The owned choice follows ordinary battle cleanup and offers an eligible sector or the original foreign Homeworld. This spends no spice or shipment allowance. Leaving the force in reserves is optional; a battle on Caladan itself cannot create an extra counter from reserves already there.',
       'Caladan reinforcement keeps the original battle identity through refresh and supported Ambassador reactions, so the same victory cannot add a second force. Placement involving Face Dancer ordering, storm, the mobile stronghold or unresolved entry reactions remains guarded. These guards do not certify those combined rules.',
       'Low Tupile’s intelligence advantage requires contact with another faction’s Homeworld or that faction’s presence on Tupile, and is usable once per faction. Its public eligibility checks are implemented, but the private disclosure action and occupation-dependent availability remain unfinished.',
+      'During Spice Collection, Grumman with at least eight native reserves may add one available Terror token to an ordinary stronghold that already has Terror, then collect four bank spice. This opportunity is separate from Mentat placement and follows any pending shared spice allocation. Declining collects nothing. Removing a token remains unavailable while its destination after removal awaits a ruling.',
+      'When several Terror tokens share a stronghold, Moritani privately selects one for an eligible entry, then chooses whether to reveal it or offer an alliance. The other tokens remain hidden. The board shows the public stack count; refresh preserves the selected token and original arrival.',
       'While Junction has high population, Guild may offer another faction transport at half or full price during that faction’s shipment. The recipient can choose exact forces from one territory or Homeworld, including a return to their own world. An allied Homeworld remains forbidden. Half-price totals round up; five forces to a Homeworld cost three spice. The Junction route and offered rate resist Karama.',
       'Homeworld shipment, battle and occupation have special rules. Occupiers receive the printed Collection income and card effects. An alliance can gain a special Homeworld victory through high-population Ecaz; this is separate from ordinary stronghold victory.',
       'The card collection below is available for reference. Starting a Homeworld game remains disabled while shipment, battles, occupation, economy and faction interactions are being completed.',
@@ -3163,6 +3165,12 @@ export const RULE_TOPICS: RuleTopic[] = [
           'game/homeworld-revival-return.ts',
           'game/homeworld-victory-reinforcement.ts',
           'game/homeworld-victory-return.ts',
+          'game/grumman-collection.ts',
+          'game/grumman-collection-return.ts',
+          'game/grumman-collection-options.ts',
+          'game/terror-entry-receipt.ts',
+          'components/grumman-collection.tsx',
+          'components/terror-board-markers.tsx',
           'game/homeworld-arrival.ts',
           'game/tupile-intelligence.ts',
           'game/homeworld-shipment.ts',
@@ -3302,6 +3310,11 @@ export const RULE_TOPICS: RuleTopic[] = [
           'tests/caladan-reinforcement-controls.test.ts',
           'tests/homeworld-victory-reinforcement-recovery.test.ts',
           'tests/tupile-intelligence.test.ts',
+          'tests/grumman-collection.test.ts',
+          'tests/grumman-collection-engine.test.ts',
+          'tests/grumman-collection-controls.test.ts',
+          'tests/grumman-collection-recovery.test.ts',
+          'tests/grumman-selection-integrity.test.ts',
           'tests/homeworld-benefits-recovery.test.ts',
         ],
       },