Jury inline doc preview, download fix, category tags, admin eval reset

- Replace MultiWindowDocViewer with FileViewer for inline previews (PDF/image/video/Office)
- Fix cross-origin download using fetch+blob instead of <a download>
- Show Startup/Business Concept badge on jury project detail + evaluate pages
- Add admin resetEvaluation procedure with audit logging
- Add dropdown menu on admin assignment rows with Reset Evaluation + Delete
- Make file action buttons responsive on mobile (separate row below file info)

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

src/server/routers/evaluation.ts

@@ -230,6 +230,67 @@ export const evaluationRouter = router({
       return updated
     }),
 
+  /**
+   * Reset (erase) an evaluation so a juror can start over (admin only)
+   * Deletes the evaluation record and resets the assignment's isCompleted flag.
+   */
+  resetEvaluation: adminProcedure
+    .input(
+      z.object({
+        assignmentId: z.string(),
+      })
+    )
+    .mutation(async ({ ctx, input }) => {
+      const assignment = await ctx.prisma.assignment.findUniqueOrThrow({
+        where: { id: input.assignmentId },
+        include: {
+          evaluation: true,
+          user: { select: { id: true, name: true, email: true } },
+          project: { select: { id: true, title: true } },
+        },
+      })
+
+      if (!assignment.evaluation) {
+        throw new TRPCError({
+          code: 'NOT_FOUND',
+          message: 'No evaluation found for this assignment',
+        })
+      }
+
+      // Delete the evaluation and reset assignment completion in a transaction
+      await ctx.prisma.$transaction([
+        ctx.prisma.evaluation.delete({
+          where: { id: assignment.evaluation.id },
+        }),
+        ctx.prisma.assignment.update({
+          where: { id: input.assignmentId },
+          data: { isCompleted: false },
+        }),
+      ])
+
+      // Audit log
+      await logAudit({
+        prisma: ctx.prisma,
+        userId: ctx.user.id,
+        action: 'EVALUATION_RESET',
+        entityType: 'Evaluation',
+        entityId: assignment.evaluation.id,
+        detailsJson: {
+          assignmentId: input.assignmentId,
+          jurorId: assignment.user.id,
+          jurorName: assignment.user.name || assignment.user.email,
+          projectId: assignment.project.id,
+          projectTitle: assignment.project.title,
+          previousStatus: assignment.evaluation.status,
+          previousGlobalScore: assignment.evaluation.globalScore,
+        },
+        ipAddress: ctx.ip,
+        userAgent: ctx.userAgent,
+      })
+
+      return { success: true }
+    }),
+
   /**
    * Get aggregated stats for a project (admin only)
    */