feat: project Pi conversation events

electron/coding-runtime/contracts.ts

@@ -80,6 +80,7 @@ export interface ConversationContextState {
   outputLimit?: number;
   compaction: 'idle' | 'running';
   lastCompactionId?: string;
+  recalculating?: boolean;
 }
 
 export interface ConversationInteractionOption {
@@ -260,6 +261,7 @@ export type ConversationPatch =
   | { op: 'message.block-delta'; messageId: string; blockId: string; delta: string }
   | { op: 'tool.upsert'; node: ConversationToolNode }
   | { op: 'compaction.upsert'; node: ConversationCompactionNode }
+  | { op: 'boundary.upsert'; node: ConversationBoundaryNode }
   | { op: 'subagent.upsert'; node: ConversationSubagentNode }
   | { op: 'queue.replace'; queue: ConversationQueueState }
   | { op: 'interaction.upsert'; interaction: ConversationInteraction }