Add structured podcast research cost_est across backend/frontend

frontend/src/components/PodcastMaker/PodcastDashboard/ResearchSummary.tsx

@@ -130,10 +130,10 @@ export const ResearchSummary: React.FC<ResearchSummaryProps> = ({
                   }}
                 />
               )}
-              {research.cost !== undefined && (
+              {research.costEst?.total !== undefined && (
                 <Chip
                   icon={<AttachMoneyIcon sx={{ fontSize: "0.875rem !important" }} />}
-                  label={`$${research.cost.toFixed(3)}`}
+                  label={`$${research.costEst.total.toFixed(3)}`}
                   size="small"
                   sx={{
                     background: alpha("#f59e0b", 0.1),
@@ -356,4 +356,3 @@ export const ResearchSummary: React.FC<ResearchSummaryProps> = ({
     </GlassyCard>
   );
 };
-

frontend/src/components/PodcastMaker/types.ts

@@ -33,6 +33,16 @@ export type ResearchInsight = {
   source_indices: number[];
 };
 
+export type PodcastCostEst = {
+  total: number;
+  breakdown: {
+    phase: "Analyze" | "Gather" | "Write" | "Produce";
+    cost: number;
+  }[];
+  currency: "USD";
+  last_updated: string;
+};
+
 export type Research = {
   summary: string;
   keyInsights: ResearchInsight[];
@@ -45,7 +55,7 @@ export type Research = {
   searchQueries?: string[];
   searchType?: string;
   provider?: string;
-  cost?: number;
+  costEst?: PodcastCostEst;
   sourceCount?: number;
   expertQuotes?: { quote: string; source_index: number }[];
   listenerCta?: string[];
@@ -222,4 +232,3 @@ export type TaskStatus = {
   created_at?: string;
   updated_at?: string;
 };
-

frontend/src/hooks/usePodcastProjectState.ts

@@ -95,6 +95,30 @@ const DEFAULT_STATE: PodcastProjectState = {
 
 const STORAGE_KEY = 'podcast_project_state';
 
+const normalizeResearchCostEst = (research: any): Research | null => {
+  if (!research) return research;
+
+  const fromSnakeCase = research.cost_est;
+  const fromCamelCase = research.costEst;
+  const legacyCost = typeof research.cost === "number" ? research.cost : undefined;
+  const normalizedCostEst = fromCamelCase || (fromSnakeCase ? {
+    total: Number(fromSnakeCase.total || 0),
+    breakdown: Array.isArray(fromSnakeCase.breakdown) ? fromSnakeCase.breakdown : [],
+    currency: fromSnakeCase.currency || "USD",
+    last_updated: fromSnakeCase.last_updated || new Date().toISOString(),
+  } : undefined);
+
+  return {
+    ...research,
+    costEst: normalizedCostEst || (legacyCost !== undefined ? {
+      total: legacyCost,
+      breakdown: [],
+      currency: "USD",
+      last_updated: new Date().toISOString(),
+    } : undefined),
+  };
+};
+
 export const usePodcastProjectState = () => {
   const [state, setState] = useState<PodcastProjectState>(() => {
     // Initialize from localStorage if available
@@ -107,6 +131,7 @@ export const usePodcastProjectState = () => {
         const restoredState: PodcastProjectState = {
           ...DEFAULT_STATE,
           ...parsed,
+          research: normalizeResearchCostEst(parsed.research),
           selectedQueries: parsed.selectedQueries ? new Set(parsed.selectedQueries) : new Set(),
           renderJobs: parsed.renderJobs || [],
         };
@@ -401,7 +426,7 @@ export const usePodcastProjectState = () => {
         analysis: dbProject.analysis,
         queries: dbProject.queries || [],
         selectedQueries: new Set(dbProject.selected_queries || []),
-        research: dbProject.research,
+        research: normalizeResearchCostEst(dbProject.research),
         rawResearch: dbProject.raw_research,
         estimate: dbProject.estimate,
         scriptData: dbProject.script_data,
@@ -454,4 +479,3 @@ export const usePodcastProjectState = () => {
     loadProjectFromDb,
   };
 };
-

frontend/src/services/podcastApi.ts

@@ -173,7 +173,12 @@ const mapSourcesToFacts = (sources: ExaSource[]): Fact[] => {
 type ExaResearchResult = {
   sources: ExaSource[];
   search_queries?: string[];
-  cost?: { total?: number };
+  cost_est?: {
+    total?: number;
+    breakdown?: { phase: "Analyze" | "Gather" | "Write" | "Produce"; cost: number }[];
+    currency?: "USD";
+    last_updated?: string;
+  };
   search_type?: string;
   provider?: string;
   content?: string;
@@ -212,7 +217,14 @@ const mapExaResearchResponse = (response: any): Research => {
     searchQueries: response.search_queries,
     searchType: response.search_type,
     provider: response.provider || "exa",
-    cost: response.cost?.total,
+    costEst: response.cost_est
+      ? {
+          total: Number(response.cost_est.total || 0),
+          breakdown: Array.isArray(response.cost_est.breakdown) ? response.cost_est.breakdown : [],
+          currency: response.cost_est.currency || "USD",
+          last_updated: response.cost_est.last_updated || new Date().toISOString(),
+        }
+      : undefined,
     sourceCount: response.sources?.length || 0,
   };
 };
@@ -953,4 +965,3 @@ export const podcastApi = {
 };
 
 export type PodcastApi = typeof podcastApi;
-