feat: show submission round file requirements on project edit page

Adds a new tRPC procedure `round.getSubmissionRoundForProgram` that
fetches the most recent SUBMISSION round for a given program, then
displays any `requiredDocuments` from its configJson as labeled info
cards above the general file upload section on the project edit page.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/server/routers/round.ts

@@ -861,4 +861,26 @@ export const roundRouter = router({
         orderBy: { sortOrder: 'asc' },
       })
     }),
+
+  /**
+   * Get the most recent SUBMISSION round config for a program.
+   * Used on the project edit page to show required document slots.
+   */
+  getSubmissionRoundForProgram: adminProcedure
+    .input(z.object({ programId: z.string() }))
+    .query(async ({ ctx, input }) => {
+      const round = await ctx.prisma.round.findFirst({
+        where: {
+          roundType: 'SUBMISSION',
+          competition: { programId: input.programId },
+        },
+        select: {
+          id: true,
+          name: true,
+          configJson: true,
+        },
+        orderBy: { sortOrder: 'desc' },
+      })
+      return round ?? null
+    }),
 })