Add the Workshops page and keep each sign-up on the site.

The form is built once to the settled field set, and a valid send is saved before anyone is emailed.

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

.env.example

@@ -18,6 +18,18 @@ SMTP_FROM="Community Rule <noreply@localhost>"
 # CR-107: inbox for Ask an organizer form submissions (requires CLOUDRON_MAIL_SMTP_* in production).
 ORGANIZER_INQUIRY_TO=
 
+# Workshop sign-up inbox. Leave unset until the address is approved. The form still saves the row.
+WORKSHOP_INQUIRY_TO=
+
+# Optional calendar link for organizations of 1,000 members or more. Shown on the confirmation and in the reply email.
+NEXT_PUBLIC_WORKSHOP_SCHEDULING_URL=
+
+# Shared token for /workshop-inquiries and the CSV export. Unset hides the page.
+WORKSHOP_INQUIRY_ADMIN_TOKEN=
+
+# Bearer token for POST /api/workshop-inquiries/purge (retry unsent mail, delete inquiries older than 12 months).
+WORKSHOP_INQUIRY_PURGE_TOKEN=
+
 # Set to `true` to sync the create-flow draft with `/api/drafts/me` when the user is signed in.
 # Server draft sync (default on). Set to `false` to disable PUT/GET /api/drafts/me.
 NEXT_PUBLIC_ENABLE_BACKEND_SYNC=