feat(coding): add renderer conversation store

src/types/coding-conversation.ts

@@ -0,0 +1,77 @@
+export type {
+  CodingRuntimePublicError,
+  ConversationMessageNode,
+  ConversationModelState,
+  ConversationNode,
+  ConversationPatch,
+  ConversationPatchEnvelope,
+  ConversationQueueState,
+  ConversationRunState,
+  ConversationRunStatus,
+  ConversationSnapshot,
+  ConversationThinkingLevel,
+  ProductModelRef,
+  PromptAcceptance,
+  PromptMode,
+  PublicWorkerState,
+} from '../../shared/coding-conversation-contracts';
+
+import type {
+  ConversationPatchEnvelope,
+  ConversationSnapshot,
+  PromptMode,
+} from '../../shared/coding-conversation-contracts';
+
+export interface CodingConversationSnapshotEvent {
+  type: 'snapshot';
+  conversationId: string;
+  workerGeneration: number;
+  seq: number;
+  snapshot: ConversationSnapshot;
+}
+
+export type CodingConversationPatchEvent = {
+  type: 'patch';
+} & ConversationPatchEnvelope;
+
+export type CodingConversationStreamEvent =
+  | CodingConversationSnapshotEvent
+  | CodingConversationPatchEvent;
+
+export interface CodingDraftAttachment {
+  attachmentId: string;
+  mime: string;
+  previewUrl?: string;
+}
+
+export interface CodingConversationDraft {
+  text: string;
+  attachments: CodingDraftAttachment[];
+  revision: number;
+}
+
+export type CodingPromptRequestStatus =
+  | 'pending'
+  | 'accepted'
+  | 'rejected'
+  | 'uncertain';
+
+export interface CodingPromptRequestState {
+  clientRequestId: string;
+  mode: PromptMode;
+  nodeId?: string;
+  status: CodingPromptRequestStatus;
+  submittedDraft: CodingConversationDraft;
+  errorCode?: string;
+  errorMessage?: string;
+}
+
+export interface CodingConversationSummary {
+  conversationId: string;
+  title: string;
+  runStatus: ConversationSnapshot['run']['status'];
+  runError: ConversationSnapshot['run']['error'] | null;
+  workerStatus: ConversationSnapshot['worker']['status'];
+  model: ConversationSnapshot['conversation']['model'];
+  unread: boolean;
+}