Add viewer-range categories, nomination tracking, dynamic showact form, session timeout, share URLs, and workflow-per-season

Features:
- Category viewer ranges + subcategory templates (admin group modal, tree workspace)
- Nomination enrichment via TwitchTracker API (NominationEnrichmentService,
  TwitchTrackerViewerStatsProvider) with admin tracking rules editor
- Nomination group tracker: CategoryGroupName as primary identifier,
  CategoryId stays as nullable legacy field; StreamerIdentity table
- Dynamic showact application form builder (AdminShowactFormBuilder,
  ShowactApplicationSchedule)
- Session idle timeout setting (AdminSessionTimeoutCard)
- Share URLs for X and Discord (SiteSettings, public extras)
- Workflow rules now stored per season (falls back to global SiteSettings)
- New admin routes: settings/access, settings/workflows, tracking-rules
- New admin review workspace with subcategory tabs
- AdminCategoriesView rebuilt with group/subcategory modals

Migrations (all additive):
- AddShareUrls, AddShowactDynamicForm, AddCategoryViewerRanges,
  AddSessionIdleTimeoutSettings, AddSeasonSubcategoryTemplates,
  AddNominationGroupTrackerIdentity, AddShowactApplicationSchedule,
  AddSeasonWorkflowRulesJson

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

frontend/src/components/home/useHomeLandingPresentation.ts

@@ -3,7 +3,7 @@ import { computed, type ComputedRef, type Ref } from 'vue'
 import { buildClipEmbed } from '../../lib/clipEmbeds'
 import { useAuthStore } from '../../stores/auth'
 import { useAwardsStore } from '../../stores/awards'
-import type { HomeDisplayCategory, HomeInteractionModalKind } from './homeLandingTypes'
+import type { HomeDisplayCategory, HomeInteractionModalKind, HomeLandingCategory } from './homeLandingTypes'
 
 type AwardsStore = ReturnType<typeof useAwardsStore>
 type AuthStore = ReturnType<typeof useAuthStore>
@@ -31,11 +31,52 @@ export function useHomeLandingOverviewPresentation(store: AwardsStore, authStore
   const displayCategories = computed<HomeDisplayCategory[]>(() =>
     store.categories.categories.map((category, index) => ({
       id: String(category.id),
+      groupName: category.groupName,
       name: category.name,
       icon: CATEGORY_ICONS[index % CATEGORY_ICONS.length] ?? '✦',
+      maxNomineesPerUser: category.maxNomineesPerUser,
       candidates: category.candidates,
     })),
   )
+  const landingCategories = computed<HomeLandingCategory[]>(() => {
+    if (store.overview.featuredCategories.length > 0) {
+      return store.overview.featuredCategories.map((category, index) => {
+        const matchingSubcategories = displayCategories.value.filter((item) => item.groupName === category.groupName)
+        const candidateCount = matchingSubcategories.reduce((sum, item) => sum + item.candidates.length, 0)
+        return {
+          id: String(category.id),
+          groupName: category.groupName,
+          name: category.groupName,
+          icon: CATEGORY_ICONS[index % CATEGORY_ICONS.length] ?? '✦',
+          description: category.description,
+          maxNomineesPerUser: category.maxNomineesPerUser,
+          candidateCount,
+          subcategoryCount: matchingSubcategories.length,
+        }
+      })
+    }
+
+    const seenGroups = new Set<string>()
+    return displayCategories.value.flatMap((category, index) => {
+      const groupKey = category.groupName.trim().toLowerCase()
+      if (seenGroups.has(groupKey)) {
+        return []
+      }
+
+      seenGroups.add(groupKey)
+      const matchingSubcategories = displayCategories.value.filter((item) => item.groupName.trim().toLowerCase() === groupKey)
+      return [{
+        id: category.id,
+        groupName: category.groupName,
+        name: category.groupName,
+        icon: CATEGORY_ICONS[index % CATEGORY_ICONS.length] ?? '✦',
+        description: '',
+        maxNomineesPerUser: category.maxNomineesPerUser,
+        candidateCount: matchingSubcategories.reduce((sum, item) => sum + item.candidates.length, 0),
+        subcategoryCount: matchingSubcategories.length,
+      }]
+    })
+  })
   const candidateCount = computed(() =>
     displayCategories.value.reduce((sum, category) => sum + category.candidates.length, 0),
   )
@@ -82,6 +123,7 @@ export function useHomeLandingOverviewPresentation(store: AwardsStore, authStore
     showStartsAt,
     currentYear,
     displayCategories,
+    landingCategories,
     candidateCount,
     bootstrapArchiveYears,
     formatRange,
@@ -194,9 +236,12 @@ function buildCatList(
     const done = votes.value[category.id] != null
     return {
       name: category.name,
+      groupName: category.groupName,
+      displayName: `${category.groupName} · ${category.name}`,
       icon: category.icon,
       idx: index,
       done,
+      candidateCount: category.candidates.length,
       onClick: () => setCat(index),
       rowStyle: baseRow + (active ? 'background:#f1ecfb;border-color:#d8c9f2;color:#5f44ad;' : 'border-color:transparent;color:#6f6685;'),
       iconStyle: "flex:none;display:inline-flex;align-items:center;justify-content:center;width:26px;height:26px;border-radius:8px;font-size:14px;" + (active ? 'background:linear-gradient(135deg,#8b6cdb,#7355c8);color:#fff;' : 'background:#efe7fb;color:#9a7fce;'),