feat(shared): add 'invention' to MemoryEventType and NarrationEvent type

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

shared/src/narration.ts

@@ -5,7 +5,7 @@ export type NarrationOutcome = InteractionOutcome | 'proposal_accepted' | 'propo
 export interface NarrationEvent {
   id: number;
   tick: number;
-  type: 'social' | 'proposal';
+  type: 'social' | 'proposal' | 'invention';
   entityIds: [EntityId, EntityId];
   names: [string, string];
   outcome: NarrationOutcome;

shared/src/types.ts

@@ -12,7 +12,8 @@ export type MemoryEventType =
   | 'need_crisis' | 'need_recovery'
   | 'goal_change'
   | 'bond_formed' | 'bond_dissolved'
-  | 'spawned';
+  | 'spawned'
+  | 'invention';
 
 export interface MemoryEvent {
   id: number;