refactor(awards): remove AWARD_MASTER role, fold features into jury chair flow

The AWARD_MASTER role split sponsor jurors into a parallel UI that hid
project files (only showed when the award was anchored to an evaluation
round) and duplicated the jury voting path with no real difference in
authority — tie-break and finalize were already governed by AwardJuror.isChair
regardless of the user's global role. Inviting a juror via the award page
defaulted to AWARD_MASTER, randomly fragmenting jury panels.

This collapses the role into JURY_MEMBER + isChair:

- specialAward.getMyAwardDetail now returns evaluation scores, chair
  visibility into other jurors' votes, and juror roster
- specialAward.submitVote accepts an optional justification per vote
- specialAward.confirmWinner moves from awardMasterProcedure to
  protectedProcedure (juror+chair check inside)
- bulkInviteJurors creates JURY_MEMBER accounts and, when the award has
  a juryGroupId, also adds them to that JuryGroup so they appear on
  the round-page jury panel
- jury award page renders justification, eval-score badges, and a
  chair tools panel with vote tally + finalize-winner CTA
- juryGroup.list includes attached SpecialAwards; the jury-list UI
  shows a trophy pill alongside round pills
- (award-master) route group, awardMasterProcedure, AWARD_MASTER role
  enum value, and AWARD_MASTER_DECISION decisionMode are deleted
- migration demotes any residual AWARD_MASTER users to JURY_MEMBER and
  recreates the UserRole enum without the value

Coup de Coeur on prod: Didier (the sponsor juror added today as
AWARD_MASTER by the buggy invite form) was migrated to JURY_MEMBER and
attached to the existing "Coup de Coeur" JuryGroup; the SpecialAward
itself was linked to that group (juryGroupId was NULL).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/components/layouts/admin-sidebar.tsx

@@ -167,7 +167,6 @@ const roleLabels: Record<string, string> = {
   JURY_MEMBER: 'Jury Member',
   OBSERVER: 'Observer',
   MENTOR: 'Mentor',
-  AWARD_MASTER: 'Award Master',
 }
 
 export function AdminSidebar({ user }: AdminSidebarProps) {

src/components/layouts/award-master-nav.tsx

@@ -1,23 +0,0 @@
-'use client'
-
-import { Home } from 'lucide-react'
-import { RoleNav, type NavItem, type RoleNavUser } from '@/components/layouts/role-nav'
-
-interface AwardMasterNavProps {
-  user: RoleNavUser
-}
-
-export function AwardMasterNav({ user }: AwardMasterNavProps) {
-  const navigation: NavItem[] = [
-    { name: 'Dashboard', href: '/award-master', icon: Home },
-  ]
-
-  return (
-    <RoleNav
-      navigation={navigation}
-      roleName="Award Master"
-      user={user}
-      basePath="/award-master"
-    />
-  )
-}

src/components/layouts/role-switcher.tsx

@@ -10,7 +10,6 @@ import {
   Handshake,
   LayoutDashboard,
   Scale,
-  Trophy,
   type LucideIcon,
 } from 'lucide-react'
 import {
@@ -33,7 +32,6 @@ export const ROLE_SWITCH_OPTIONS: Record<string, RoleSwitchOption> = {
   JURY_MEMBER: { label: 'Jury View', path: '/jury', icon: Scale },
   MENTOR: { label: 'Mentor View', path: '/mentor', icon: Handshake },
   OBSERVER: { label: 'Observer View', path: '/observer', icon: Eye },
-  AWARD_MASTER: { label: 'Award Master', path: '/award-master', icon: Trophy },
 }
 
 export function useRoleSwitcher(currentBasePath: string): {