refactor: replace common confirm dialogs with maintenance CRUD dialogs and streamline form handling in MasterDetailMntC.vue and SingleRecordMnt.vue

src/composables/layout/useThemeToggle.ts

@@ -0,0 +1,28 @@
+import { computed } from 'vue'
+import { useTheme } from 'vuetify'
+import { getNextThemeName } from '@/utils/theme'
+
+export function useThemeToggle () {
+  const theme = useTheme()
+
+  const availableThemeNames = computed(() =>
+    Object.keys(theme.themes.value ?? {}).filter((name) => name.startsWith('theme'))
+  )
+
+  function toggleTheme () {
+    const names = availableThemeNames.value
+    if (names.length === 0) return null
+
+    const current = theme.global.name.value
+    const next = getNextThemeName(names, current)
+    if (!next) return null
+
+    theme.change(next)
+    return next
+  }
+
+  return {
+    availableThemeNames,
+    toggleTheme,
+  }
+}