feat(financials-v2): add financial statements endpoint and query plumbing

lib/query/keys.ts

@@ -1,5 +1,14 @@
 export const queryKeys = {
   companyAnalysis: (ticker: string) => ['analysis', ticker] as const,
+  companyFinancialStatements: (
+    ticker: string,
+    mode: string,
+    statement: string,
+    window: string,
+    includeDimensions: boolean,
+    cursor: string | null,
+    limit: number
+  ) => ['financials-v2', ticker, mode, statement, window, includeDimensions ? 'dims' : 'no-dims', cursor ?? '', limit] as const,
   filings: (ticker: string | null, limit: number) => ['filings', ticker ?? '', limit] as const,
   report: (accessionNumber: string) => ['report', accessionNumber] as const,
   watchlist: () => ['watchlist'] as const,