fix(pdf): add the missing email_to to the quote fixtures

Quote requires email_to, so both PDF fixtures failed to type check.
Add the field and the two long-standing errors in tsc --noEmit are gone.

src/lib/pdf/quote-document.test.tsx

@@ -84,6 +84,7 @@ const baseCustomer: Customer = {
 };
 
 const baseQuote: Quote = {
+  email_to: "",
   id: "q1",
   collectionId: "pbc_quotes",
   collectionName: "quotes",

src/lib/pdf/render.test.ts

@@ -93,6 +93,7 @@ const baseCustomer: Customer = {
 };
 
 const baseQuote: Quote = {
+  email_to: "",
   id: "q1",
   collectionId: "pbc_quotes",
   collectionName: "quotes",
@@ -444,4 +445,4 @@ describe("renderStockItemStocktakePdf", () => {
     });
     expect(buf.subarray(0, 5).toString("ascii")).toBe("%PDF-");
   }, 30_000);
-});
+});