Multi-role members, round detail UI overhaul, dashboard jury progress, and submit bug fix

- Add roles UserRole[] to User model with migration + backfill from existing role column
- Update auth JWT/session to propagate roles array with [role] fallback for stale tokens
- Update tRPC hasRole() middleware and add userHasRole() helper for inline role checks
- Update ~15 router inline checks and ~13 DB queries to use roles array
- Add updateRoles admin mutation with SUPER_ADMIN guard and priority-based primary role
- Add role switcher UI in admin sidebar and role-nav for multi-role users
- Remove redundant stats cards from round detail, add window dates to header banner
- Merge Members section into JuryProgressTable with inline cap editor and remove buttons
- Reorder round detail assignments tab: Progress > Score Dist > Assignments > Coverage > Jury Group
- Make score distribution fill full vertical height, reassignment history always open
- Add per-juror progress bars to admin dashboard ActiveRoundPanel for EVALUATION rounds
- Fix evaluation submit bug: use isSubmitting state instead of startMutation.isPending

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

src/server/routers/assignment.ts

@@ -1,6 +1,6 @@
 import { z } from 'zod'
 import { TRPCError } from '@trpc/server'
-import { router, protectedProcedure, adminProcedure } from '../trpc'
+import { router, protectedProcedure, adminProcedure, userHasRole } from '../trpc'
 import { getUserAvatarUrl } from '../utils/avatar-url'
 import {
   generateAIAssignments,
@@ -114,7 +114,7 @@ export async function reassignAfterCOI(params: {
       ? await prisma.user.findMany({
           where: {
             id: { in: activeRoundJurorIds },
-            role: 'JURY_MEMBER',
+            roles: { has: 'JURY_MEMBER' },
             status: 'ACTIVE',
           },
           select: { id: true, name: true, email: true, maxAssignments: true },
@@ -340,7 +340,7 @@ async function reassignDroppedJurorAssignments(params: {
       ? await prisma.user.findMany({
           where: {
             id: { in: activeRoundJurorIds },
-            role: 'JURY_MEMBER',
+            roles: { has: 'JURY_MEMBER' },
             status: 'ACTIVE',
           },
           select: { id: true, name: true, email: true, maxAssignments: true },
@@ -627,7 +627,7 @@ async function runAIAssignmentJob(jobId: string, roundId: string, userId: string
 
     const jurors = await prisma.user.findMany({
       where: {
-        role: 'JURY_MEMBER',
+        roles: { has: 'JURY_MEMBER' },
         status: 'ACTIVE',
         ...(scopedJurorIds ? { id: { in: scopedJurorIds } } : {}),
       },
@@ -899,7 +899,7 @@ export const assignmentRouter = router({
 
       // Verify access
       if (
-        ctx.user.role === 'JURY_MEMBER' &&
+        userHasRole(ctx.user, 'JURY_MEMBER') &&
         assignment.userId !== ctx.user.id
       ) {
         throw new TRPCError({
@@ -1322,7 +1322,7 @@ export const assignmentRouter = router({
 
       const jurors = await ctx.prisma.user.findMany({
         where: {
-          role: 'JURY_MEMBER',
+          roles: { has: 'JURY_MEMBER' },
           status: 'ACTIVE',
           ...(scopedJurorIds ? { id: { in: scopedJurorIds } } : {}),
         },
@@ -2199,7 +2199,7 @@ export const assignmentRouter = router({
         const ids = roundJurorIds.map((a) => a.userId).filter((id) => id !== input.jurorId)
         candidateJurors = ids.length > 0
           ? await ctx.prisma.user.findMany({
-              where: { id: { in: ids }, role: 'JURY_MEMBER', status: 'ACTIVE' },
+              where: { id: { in: ids }, roles: { has: 'JURY_MEMBER' }, status: 'ACTIVE' },
               select: { id: true, name: true, email: true, maxAssignments: true },
             })
           : []
@@ -2427,7 +2427,7 @@ export const assignmentRouter = router({
           ? await ctx.prisma.user.findMany({
               where: {
                 id: { in: activeRoundJurorIds },
-                role: 'JURY_MEMBER',
+                roles: { has: 'JURY_MEMBER' },
                 status: 'ACTIVE',
               },
               select: { id: true, name: true, email: true, maxAssignments: true },
@@ -2890,7 +2890,7 @@ export const assignmentRouter = router({
           ? await ctx.prisma.user.findMany({
               where: {
                 id: { in: activeRoundJurorIds },
-                role: 'JURY_MEMBER',
+                roles: { has: 'JURY_MEMBER' },
                 status: 'ACTIVE',
               },
               select: { id: true, name: true, email: true, maxAssignments: true },