Give builder fields persistent labels, treat description as optional, and validate save-progress email with a real form.

Name stays required; description is a labelled optional textarea. Email uses native validity and form submit. Drop the dead workshop link and fix a few copy errors.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/(app)/create/utils/createFlowPaths.ts

@@ -10,6 +10,10 @@ import {
   FIRST_STEP,
 } from "./flowSteps";
 
+/** Associates the save-progress email field with the layout footer submit. */
+export const CREATE_FLOW_COMMUNITY_SAVE_FORM_ID =
+  "create-flow-community-save";
+
 export const CREATE_ROUTES = {
   root: "/",
   createRoot: "/create",