Add hybrid research copilot workspace

lib/api.ts

@@ -15,6 +15,8 @@ import type {
   ResearchArtifact,
   ResearchArtifactKind,
   ResearchArtifactSource,
+  ResearchCopilotSession,
+  ResearchCopilotTurnResponse,
   ResearchJournalEntry,
   ResearchJournalEntryType,
   SearchAnswerResponse,
@@ -226,6 +228,48 @@ export async function getResearchWorkspace(ticker: string) {
   }, 'Unable to fetch research workspace');
 }
 
+export async function getResearchCopilotSession(ticker: string) {
+  return await requestJson<{ session: ResearchCopilotSession | null }>({
+    path: `/api/research/copilot/session?ticker=${encodeURIComponent(ticker.trim().toUpperCase())}`
+  }, 'Unable to fetch research copilot session');
+}
+
+export async function runResearchCopilotTurn(input: {
+  ticker: string;
+  query: string;
+  sources?: SearchSource[];
+  pinnedArtifactIds?: number[];
+  memoSection?: ResearchMemoSection | null;
+}) {
+  return await requestJson<ResearchCopilotTurnResponse>({
+    path: '/api/research/copilot/turn',
+    method: 'POST',
+    body: {
+      ticker: input.ticker.trim().toUpperCase(),
+      query: input.query.trim(),
+      ...(input.sources && input.sources.length > 0 ? { sources: input.sources } : {}),
+      ...(input.pinnedArtifactIds && input.pinnedArtifactIds.length > 0 ? { pinnedArtifactIds: input.pinnedArtifactIds } : {}),
+      ...(input.memoSection ? { memoSection: input.memoSection } : {})
+    }
+  }, 'Unable to run research copilot turn');
+}
+
+export async function queueResearchCopilotJob(input: {
+  ticker: string;
+  query: string;
+  sources?: SearchSource[];
+}) {
+  return await requestJson<{ task: Task }>({
+    path: '/api/research/copilot/job',
+    method: 'POST',
+    body: {
+      ticker: input.ticker.trim().toUpperCase(),
+      query: input.query.trim(),
+      ...(input.sources && input.sources.length > 0 ? { sources: input.sources } : {})
+    }
+  }, 'Unable to queue research brief');
+}
+
 export async function listResearchLibrary(input: {
   ticker: string;
   q?: string;