ADDED - Save an unfinished project as a draft

- Add a Save as draft button that bypasses the completeness gate: the user
  can save partial work and finish later
- projectDraftInputSchema makes the user-facing copy (title, summary, service
  label, client) optional; the action auto-generates a slug from the title
  (or draft-<timestamp>), defaults the year to the current year, and forces
  the project unpublished
- Drafts drop not-yet-valid sections/assets instead of failing the save
- Pass intent via a hidden field set on click so the server reliably sees it
- Tests: draft schema accepts empty copy a strict save rejects, and still
  requires a slug and a valid year

lib/portfolio-validation.ts

@@ -123,3 +123,21 @@ export const projectInputSchema = z.object({
   sections: z.array(sectionInputSchema),
   assets: z.array(assetInputSchema),
 });
+
+/**
+ * Draft variant: the user-facing copy fields are optional so an unfinished
+ * project can be saved and completed later. The action still guarantees a
+ * slug, a category, and a year (auto-filled), and forces the project unpublished.
+ */
+export const projectDraftInputSchema = projectInputSchema.extend({
+  titleAr: optionalTrimmedText,
+  titleEn: optionalTrimmedText,
+  titleDe: optionalTrimmedText,
+  summaryAr: optionalTrimmedText,
+  summaryEn: optionalTrimmedText,
+  summaryDe: optionalTrimmedText,
+  serviceLabelAr: optionalTrimmedText,
+  serviceLabelEn: optionalTrimmedText,
+  serviceLabelDe: optionalTrimmedText,
+  clientName: optionalTrimmedText,
+});