feat: split admin dashboard, improve match ops, and player closed-match UX

Admin: add match/player overview sub-nav; refine settlement flow and league
match management UI; improve action button enabled/disabled styles; enhance
logo upload and outright odds sync.

API: expose matchPhase/bettingOpen for closed matches; league publish guards;
settlement preview with auto score save; outright team auto-sync.

Player: watermark for closed/settled states; keep match and bet details visible;
remove default login credentials.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/admin/src/components/DashboardSubNav.vue

@@ -0,0 +1,91 @@
+<script setup lang="ts">
+import { RouterLink, useRoute } from 'vue-router';
+import { useAdminLocale } from '../composables/useAdminLocale';
+
+const { t } = useAdminLocale();
+const route = useRoute();
+
+withDefaults(
+  defineProps<{
+    embedded?: boolean;
+  }>(),
+  { embedded: false },
+);
+
+const tabs = [
+  { path: '/', labelKey: 'nav.dashboard.matches' },
+  { path: '/dashboard/players', labelKey: 'nav.dashboard.players' },
+];
+
+function isActive(path: string) {
+  if (path === '/dashboard/players') {
+    return route.path === '/dashboard/players';
+  }
+  return route.path === '/' || route.path === '/dashboard/matches';
+}
+</script>
+
+<template>
+  <nav
+    class="dashboard-subnav"
+    :class="{ 'dashboard-subnav--embedded': embedded }"
+    aria-label="Dashboard sections"
+  >
+    <RouterLink
+      v-for="tab in tabs"
+      :key="tab.path"
+      :to="tab.path"
+      class="dashboard-subnav__item"
+      :class="{ 'dashboard-subnav__item--active': isActive(tab.path) }"
+    >
+      {{ t(tab.labelKey) }}
+    </RouterLink>
+  </nav>
+</template>
+
+<style scoped>
+.dashboard-subnav {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  margin-bottom: 16px;
+  padding: 6px;
+  border-radius: 10px;
+  background: rgba(255, 255, 255, 0.03);
+  border: 1px solid rgba(255, 255, 255, 0.06);
+  flex-shrink: 0;
+  min-height: 48px;
+  box-sizing: border-box;
+}
+.dashboard-subnav--embedded {
+  margin-bottom: 0;
+  padding: 0 14px 0 0;
+  border: none;
+  border-right: 1px solid rgba(255, 255, 255, 0.08);
+  background: transparent;
+  flex-shrink: 0;
+  height: 44px;
+  box-sizing: border-box;
+}
+.dashboard-subnav__item {
+  padding: 0 14px;
+  height: 36px;
+  display: inline-flex;
+  align-items: center;
+  justify-content: center;
+  box-sizing: border-box;
+  border-radius: 8px;
+  font-size: 13px;
+  font-weight: 600;
+  color: #888;
+  transition: color 0.15s, background 0.15s;
+}
+.dashboard-subnav__item:hover {
+  color: #ccc;
+  background: rgba(255, 255, 255, 0.04);
+}
+.dashboard-subnav__item--active {
+  color: var(--green-text);
+  background: rgba(0, 200, 83, 0.1);
+}
+</style>