fix(app): resolve Bucket B (type safety) lint items

WS-3 session 1b-ii Task 3 (audit Bucket B — 34 items: 21 absorbed
via ignorePatterns + 14 real fixes; the count of 21 is the actual
non-Tier-3 lint-count drop from the .eslintrc edit, slightly above
the audit's predicted 20 because additional vendored-Vuexy items
beyond the 23 no-explicit-any landed in those paths too).

Config:
- .eslintrc.cjs: add src/@core/** and src/@layouts/** to ignorePatterns.
  Vendored Vuexy code, precedent: src/plugins/iconify/*.js. The
  CLAUDE.md no-any rule remains in force for our own code under src/.

Real type-safety fixes:
- B.1 ref<any> in our code (3 occurrences):
  * blank.vue / default.vue: AppLoadingIndicator template ref now
    typed as InstanceType<typeof AppLoadingIndicator> | null. Picks
    up the defineExpose'd fallbackHandle / resolveHandle methods.
  * NavSearchBar.vue:109: useApi<any>(...) → useApi<SearchResults[]>(...)
    matching the existing searchResult ref type.
- B.2 ShiftDetailPanel.vue: moved the Cancel-dialog ref declarations
  (isCancelDialogOpen, cancellingAssignment) from line 305-307 to
  line 248 — directly above the onCancel handler that uses them.
  Resolves all 7 no-use-before-define items in one move. Same-file,
  no logic change.
- B.3 useImpersonationStore.ts:119: renamed inner 'stored' to
  'storedSnapshot' to resolve shadowing of the outer 'stored' on
  line 18.
- B.4 useFormSchemas.ts:97-99: renamed local mutationFn parameter
  'confirmed_name' to camelCase 'confirmedName'. Wire-format key
  stays snake_case via destructure-alias:
    params: confirmedName ? { confirmed_name: confirmedName } : undefined
  No callers found in apps/app/src — safe rename.

Tests + typecheck verified green.

Lint baseline: 97 → 62.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

apps/app/src/layouts/blank.vue

@@ -1,4 +1,6 @@
 <script lang="ts" setup>
+import type AppLoadingIndicator from '@/components/AppLoadingIndicator.vue'
+
 const { injectSkinClasses } = useSkins()
 
 // ℹ️ This will inject classes in body tag for accurate styling
@@ -6,7 +8,7 @@ injectSkinClasses()
 
 // SECTION: Loading Indicator
 const isFallbackStateActive = ref(false)
-const refLoadingIndicator = ref<any>(null)
+const refLoadingIndicator = ref<InstanceType<typeof AppLoadingIndicator> | null>(null)
 
 // watching if the fallback state is active and the refLoadingIndicator component is available
 watch([isFallbackStateActive, refLoadingIndicator], () => {

apps/app/src/layouts/components/NavSearchBar.vue

@@ -106,7 +106,7 @@ const searchResult = ref<SearchResults[]>([])
 const fetchResults = async () => {
   isLoading.value = true
 
-  const { data } = await useApi<any>(withQuery('/app-bar/search', { q: searchQuery.value }))
+  const { data } = await useApi<SearchResults[]>(withQuery('/app-bar/search', { q: searchQuery.value }))
 
   searchResult.value = data.value
 

apps/app/src/layouts/default.vue

@@ -1,4 +1,5 @@
 <script lang="ts" setup>
+import type AppLoadingIndicator from '@/components/AppLoadingIndicator.vue'
 import { useConfigStore } from '@core/stores/config'
 import { AppContentLayoutNav } from '@layouts/enums'
 import { switchToVerticalNavOnLtOverlayNavBreakpoint } from '@layouts/utils'
@@ -18,7 +19,7 @@ injectSkinClasses()
 
 // SECTION: Loading Indicator
 const isFallbackStateActive = ref(false)
-const refLoadingIndicator = ref<any>(null)
+const refLoadingIndicator = ref<InstanceType<typeof AppLoadingIndicator> | null>(null)
 
 // watching if the fallback state is active and the refLoadingIndicator component is available
 watch([isFallbackStateActive, refLoadingIndicator], () => {